opening a port..

opening a port..

[mdew]

Hi,
Just *testing* this out..

iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT

iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT

yet, when i try to telnet to it,

mdew:~# telnet 127.0.0.1 4662
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

Yeah I know I have lots of unnessary rules, but im only testing 'em...it
just seems a little strange that i cant see 4662 (Edonkey port) on the
router.

-mdew

Re: opening a port..

[Dharmendra.T]

On Wed, 2003-01-08 at 17:42, mdew wrote:
> 
> Hi,
> Just *testing* this out..
> 
> iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> 
> iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> 
> yet, when i try to telnet to it,
> 
> mdew:~# telnet 127.0.0.1 4662
> Trying 127.0.0.1...
> telnet: Unable to connect to remote host: Connection refused
> 
> Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> just seems a little strange that i cant see 4662 (Edonkey port) on the
> router.
> 
> -mdew
> 
> 
Note:
telnet 127.0.0.1 port

 This will not go through any of the interfaces(eth*). You should allow
this through -i lo.

Here some how you are getting connected and you are getting the response
connection refused. Probably you are not running the service on the
router!.

-- 
Dharmendra.T
Linux Enthu

Re: opening a port..

[mdew]

On Thu, 2003-01-09 at 01:33, Dharmendra.T wrote:
> 
> 
> On Wed, 2003-01-08 at 17:42, mdew wrote:
> > 
> > Hi,
> > Just *testing* this out..
> > 
> > iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> > 
> > iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> > 
> > yet, when i try to telnet to it,
> > 
> > mdew:~# telnet 127.0.0.1 4662
> > Trying 127.0.0.1...
> > telnet: Unable to connect to remote host: Connection refused
> > 
> > Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> > just seems a little strange that i cant see 4662 (Edonkey port) on the
> > router.
> > 
> > -mdew
> > 
> > 
> Note:
> telnet 127.0.0.1 port
> 
>  This will not go through any of the interfaces(eth*). You should allow
> this through -i lo.
> 
> Here some how you are getting connected and you are getting the response
> connection refused. Probably you are not running the service on the
> router!.
> 
> -- 
> Dharmendra.T
> Linux Enthu
> 
ok, telnet from another machine to the router.

telnet 10.0.0.6 4662
Trying 10.0.0.6...
telnet: Unable to connect to remote host: Connection refused

what "service" should I be running? I simply want 4662 open both ways.

-mdew

RE: opening a port..

[Rob Sterenborg]

> ok, telnet from another machine to the router.
> 
> telnet 10.0.0.6 4662
> Trying 10.0.0.6...
> telnet: Unable to connect to remote host: Connection refused
> 
> what "service" should I be running? I simply want 4662 open both ways.

# netstat -an|grep 4662
should tell you if your box is listening at all on port 4662.

If you run eDonkey server on the firewall box, open port in the INPUT
chain.
If your eDonkey server is *behind* the firewall, open the port in the
FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.


Rob

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > ok, telnet from another machine to the router.
> > 
> > telnet 10.0.0.6 4662
> > Trying 10.0.0.6...
> > telnet: Unable to connect to remote host: Connection refused
> > 
> > what "service" should I be running? I simply want 4662 open both ways.
> 
> # netstat -an|grep 4662
> should tell you if your box is listening at all on port 4662.
> 
> If you run eDonkey server on the firewall box, open port in the INPUT
> chain.
> If your eDonkey server is *behind* the firewall, open the port in the
> FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.

the edonkey server is behind the firewall

210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x

iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT

like that?

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > ok, telnet from another machine to the router.
> > 
> > telnet 10.0.0.6 4662
> > Trying 10.0.0.6...
> > telnet: Unable to connect to remote host: Connection refused
> > 
> > what "service" should I be running? I simply want 4662 open both ways.
> 
> # netstat -an|grep 4662
> should tell you if your box is listening at all on port 4662.
> 
> If you run eDonkey server on the firewall box, open port in the INPUT
> chain.
> If your eDonkey server is *behind* the firewall, open the port in the
> FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.

the edonkey server is behind the firewall

210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x

iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT

like that?

RE: opening a port..

[Dharmendra.T]

On Thu, 2003-01-09 at 08:11, mdew wrote:
> On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > > ok, telnet from another machine to the router.
> > > 
> > > telnet 10.0.0.6 4662
> > > Trying 10.0.0.6...
> > > telnet: Unable to connect to remote host: Connection refused
> > > 
> > > what "service" should I be running? I simply want 4662 open both ways.
> > 
> > # netstat -an|grep 4662
> > should tell you if your box is listening at all on port 4662.
> > 
> > If you run eDonkey server on the firewall box, open port in the INPUT
> > chain.
> > If your eDonkey server is *behind* the firewall, open the port in the
> > FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.
> 
> the edonkey server is behind the firewall
> 
> 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> 
> iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
> 

This should work without the last rule.

iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> 
> like that?
> 
> 
> 
-- 
Dharmendra.T
Linux Enthu

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 17:55, Dharmendra.T wrote:
> On Thu, 2003-01-09 at 08:11, mdew wrote:
> > On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > > > ok, telnet from another machine to the router.
> > > > 
> > > > telnet 10.0.0.6 4662
> > > > Trying 10.0.0.6...
> > > > telnet: Unable to connect to remote host: Connection refused
> > > > 
> > > > what "service" should I be running? I simply want 4662 open both ways.
> > > 
> > > # netstat -an|grep 4662
> > > should tell you if your box is listening at all on port 4662.
> > > 
> > > If you run eDonkey server on the firewall box, open port in the INPUT
> > > chain.
> > > If your eDonkey server is *behind* the firewall, open the port in the
> > > FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.
> > 
> > the edonkey server is behind the firewall
> > 
> > 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> > 
> > iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
> > 
> 
> This should work without the last rule.
> 
> iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> > 
> > like that?

the router isnt picking this up..

mdew:~# iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12
--dport 4662 -j DNAT --to 10.0.0.6:4662
mdew:~# iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j
ACCEPT
mdew:~# netstat -an|grep 4662
mdew:~#

mdew@nirvana:~$ nmap 10.0.0.6

Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
Interesting ports on debian (10.0.0.6):
(The 1598 ports scanned but not shown below are in state: closed)
Port       State       Service
22/tcp     open        ssh
25/tcp     open        smtp
110/tcp    open        pop-3
113/tcp    open        auth
135/tcp    filtered    loc-srv
139/tcp    filtered    netbios-ssn
8080/tcp   open        http-proxy

Nmap run completed -- 1 IP address (1 host up) scanned in 2.545 seconds

RE: opening a port..

[Dharmendra.T]

On Thu, 2003-01-09 at 11:46, mdew wrote:
> On Thu, 2003-01-09 at 17:55, Dharmendra.T wrote:
> > On Thu, 2003-01-09 at 08:11, mdew wrote:
> > > On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > > > > ok, telnet from another machine to the router.
> > > > > 
> > > > > telnet 10.0.0.6 4662
> > > > > Trying 10.0.0.6...
> > > > > telnet: Unable to connect to remote host: Connection refused
> > > > > 
> > > > > what "service" should I be running? I simply want 4662 open both ways.
> > > > 
> > > > # netstat -an|grep 4662
> > > > should tell you if your box is listening at all on port 4662.
> > > > 
> > > > If you run eDonkey server on the firewall box, open port in the INPUT
> > > > chain.
> > > > If your eDonkey server is *behind* the firewall, open the port in the
> > > > FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.
> > > 
> > > the edonkey server is behind the firewall
> > > 
> > > 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> > > 
> > > iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
> > > 
> > 
> > This should work without the last rule.
> > 
> > iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> > > 
> > > like that?
> 
> the router isnt picking this up..
> 
> mdew:~# iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12
> --dport 4662 -j DNAT --to 10.0.0.6:4662
> mdew:~# iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j
> ACCEPT
> mdew:~# netstat -an|grep 4662
> mdew:~#
> 
> mdew@nirvana:~$ nmap 10.0.0.6
> 
> Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
> Interesting ports on debian (10.0.0.6):
> (The 1598 ports scanned but not shown below are in state: closed)
> Port       State       Service
> 22/tcp     open        ssh
> 25/tcp     open        smtp
> 110/tcp    open        pop-3
> 113/tcp    open        auth
> 135/tcp    filtered    loc-srv
> 139/tcp    filtered    netbios-ssn
> 8080/tcp   open        http-proxy
> 
> Nmap run completed -- 1 IP address (1 host up) scanned in 2.545 seconds
> > 
> 

As said you are not running any service on that port so the port is not
listening, Try the rules by listening a port using nc(netcat)

# nc -l -p 4662

And then run nmap. You should get listed this port!

-- 
Dharmendra.T
Linux Enthu

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 19:26, Dharmendra.T wrote:
> On Thu, 2003-01-09 at 11:46, mdew wrote:
> > On Thu, 2003-01-09 at 17:55, Dharmendra.T wrote:
> > > On Thu, 2003-01-09 at 08:11, mdew wrote:
> > > > On Thu, 2003-01-09 at 03:24, Rob Sterenborg wrote:
> > > > > > ok, telnet from another machine to the router.
> > > > > > 
> > > > > > telnet 10.0.0.6 4662
> > > > > > Trying 10.0.0.6...
> > > > > > telnet: Unable to connect to remote host: Connection refused
> > > > > > 
> > > > > > what "service" should I be running? I simply want 4662 open both ways.
> > > > > 
> > > > > # netstat -an|grep 4662
> > > > > should tell you if your box is listening at all on port 4662.
> > > > > 
> > > > > If you run eDonkey server on the firewall box, open port in the INPUT
> > > > > chain.
> > > > > If your eDonkey server is *behind* the firewall, open the port in the
> > > > > FORWARD chain, and add a DNAT rule in the nat table -> PREROUTING chain.
> > > > 
> > > > the edonkey server is behind the firewall
> > > > 
> > > > 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> > > > 
> > > > iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 --dport 4662 -j DNAT --to 10.0.0.6:4662
> > > > 
> > > 
> > > This should work without the last rule.
> > > 
> > > iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> > > > 
> > > > like that?
> > 
> > the router isnt picking this up..
> > 
> > mdew:~# iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12
> > --dport 4662 -j DNAT --to 10.0.0.6:4662
> > mdew:~# iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j
> > ACCEPT
> > mdew:~# netstat -an|grep 4662
> > mdew:~#
> > 
> > mdew@nirvana:~$ nmap 10.0.0.6
> > 
> > Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
> > Interesting ports on debian (10.0.0.6):
> > (The 1598 ports scanned but not shown below are in state: closed)
> > Port       State       Service
> > 22/tcp     open        ssh
> > 25/tcp     open        smtp
> > 110/tcp    open        pop-3
> > 113/tcp    open        auth
> > 135/tcp    filtered    loc-srv
> > 139/tcp    filtered    netbios-ssn
> > 8080/tcp   open        http-proxy
> > 
> > Nmap run completed -- 1 IP address (1 host up) scanned in 2.545 seconds
> > > 
> > 
> 
> As said you are not running any service on that port so the port is not
> listening, Try the rules by listening a port using nc(netcat)
> 
> # nc -l -p 4662
> 
> And then run nmap. You should get listed this port!
> 
> -- 
> Dharmendra.T
> Linux Enthu

mdew:~# nc -l -p 4662
ãP<H¹ogÝT'b´\Y6▒http://emule-project.net<6Ñ~ÖEmdew:~#

(some strange characters, then it quits)

mdew:~# netstat -an|grep 4662
mdew:~#

nirvana:/home/mdew# nmap 10.0.0.6

Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
Interesting ports on debian (10.0.0.6):
(The 1591 ports scanned but not shown below are in state: closed)
Port       State       Service
22/tcp     open        ssh
25/tcp     open        smtp
110/tcp    open        pop-3
111/tcp    filtered    sunrpc
113/tcp    open        auth
135/tcp    filtered    loc-srv
136/tcp    filtered    profile
137/tcp    filtered    netbios-ns
138/tcp    filtered    netbios-dgm
139/tcp    filtered    netbios-ssn
199/tcp    filtered    smux
826/tcp    filtered    unknown
953/tcp    filtered    rndc
8080/tcp   open        http-proxy

RE: opening a port..

[Dharmendra.T]

> > 
> > # nc -l -p 4662
> > 
> > And then run nmap. You should get listed this port!
> > 
> > -- 
> > Dharmendra.T
> > Linux Enthu
> 
> mdew:~# nc -l -p 4662
> ãP<H¹ogÝT'b´\Y6▒http://emule-project.net<6Ñ~ÖEmdew:~#
> 
> (some strange characters, then it quits)
> 
> mdew:~# netstat -an|grep 4662
> mdew:~#
> 
> nirvana:/home/mdew# nmap 10.0.0.6
> 
> Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
> Interesting ports on debian (10.0.0.6):
> (The 1591 ports scanned but not shown below are in state: closed)
> Port       State       Service
> 22/tcp     open        ssh
> 25/tcp     open        smtp
> 110/tcp    open        pop-3
> 111/tcp    filtered    sunrpc
> 113/tcp    open        auth
> 135/tcp    filtered    loc-srv
> 136/tcp    filtered    profile
> 137/tcp    filtered    netbios-ns
> 138/tcp    filtered    netbios-dgm
> 139/tcp    filtered    netbios-ssn
> 199/tcp    filtered    smux
> 826/tcp    filtered    unknown
> 953/tcp    filtered    rndc
> 8080/tcp   open        http-proxy
> 
> 
> 
> 

nc, I mean to say netcat.?



-- 
Dharmendra.T
Linux Enthu

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 19:53, Dharmendra.T wrote:
> > > 
> > > # nc -l -p 4662
> > > 
> > > And then run nmap. You should get listed this port!
> > > 
> > > -- 
> > > Dharmendra.T
> > > Linux Enthu
> > 
> > mdew:~# nc -l -p 4662
> > ãP<H¹ogÝT'b´\Y6▒http://emule-project.net<6Ñ~ÖEmdew:~#
> > 
> > (some strange characters, then it quits)
> > 
> > mdew:~# netstat -an|grep 4662
> > mdew:~#
> > 
> > nirvana:/home/mdew# nmap 10.0.0.6
> > 
> > Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
> > Interesting ports on debian (10.0.0.6):
> > (The 1591 ports scanned but not shown below are in state: closed)
> > Port       State       Service
> > 22/tcp     open        ssh
> > 25/tcp     open        smtp
> > 110/tcp    open        pop-3
> > 111/tcp    filtered    sunrpc
> > 113/tcp    open        auth
> > 135/tcp    filtered    loc-srv
> > 136/tcp    filtered    profile
> > 137/tcp    filtered    netbios-ns
> > 138/tcp    filtered    netbios-dgm
> > 139/tcp    filtered    netbios-ssn
> > 199/tcp    filtered    smux
> > 826/tcp    filtered    unknown
> > 953/tcp    filtered    rndc
> > 8080/tcp   open        http-proxy
> > 
> > 
> > 
> > 
> 
> nc, I mean to say netcat.?

it was netcat

apt-get install netcat

Re: opening a port..

[Jörg Esser]

mdew wrote:

>On Thu, 2003-01-09 at 19:53, Dharmendra.T wrote:
>  
>
>>>># nc -l -p 4662
>>>>
>>>>And then run nmap. You should get listed this port!
>>>>
>>>>-- 
>>>>Dharmendra.T
>>>>Linux Enthu
>>>>        
>>>>
>>>mdew:~# nc -l -p 4662
>>>ãP<H¹ogÝT'b´\Y6▒http://emule-project.net<6Ñ~ÖEmdew:~#
>>>
>>>(some strange characters, then it quits)
>>>
>>>mdew:~# netstat -an|grep 4662
>>>mdew:~#
>>>
>>>nirvana:/home/mdew# nmap 10.0.0.6
>>>      
>>>
nmap -p4662 10.0.0.6
Should work better.
and a new version of nmap should work better, too.
I heard that when you use nmap as your way it picks just well known 
ports (/etc/service file ?) and then you won´t get this special port if 
its not in there.(Maybe I´m wrong)

>>>Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
>>>Interesting ports on debian (10.0.0.6):
>>>(The 1591 ports scanned but not shown below are in state: closed)
>>>Port       State       Service
>>>22/tcp     open        ssh
>>>25/tcp     open        smtp
>>>110/tcp    open        pop-3
>>>111/tcp    filtered    sunrpc
>>>113/tcp    open        auth
>>>135/tcp    filtered    loc-srv
>>>136/tcp    filtered    profile
>>>137/tcp    filtered    netbios-ns
>>>138/tcp    filtered    netbios-dgm
>>>139/tcp    filtered    netbios-ssn
>>>199/tcp    filtered    smux
>>>826/tcp    filtered    unknown
>>>953/tcp    filtered    rndc
>>>8080/tcp   open        http-proxy
>>>
>>>
>>>
>>>
>>>      
>>>
>>nc, I mean to say netcat.?
>>    
>>
>
>it was netcat
>
>apt-get install netcat
>
>
>
>
>  
>

Re: opening a port..

[mdew]

[-- Attachment #1: Type: text/plain, Size: 2089 bytes --]

On Thu, 2003-01-09 at 21:04, Jörg Esser wrote:
> 
> 
> mdew wrote:
> 
> >On Thu, 2003-01-09 at 19:53, Dharmendra.T wrote:
> >  
> >
> >>>># nc -l -p 4662
> >>>>
> >>>>And then run nmap. You should get listed this port!
> >>>>
> >>>>-- 
> >>>>Dharmendra.T
> >>>>Linux Enthu
> >>>>        
> >>>>
> >>>mdew:~# nc -l -p 4662
> >>>ãP<H¹ogÝT'b´\Y6▒http://emule-project.net<6Ñ~ÖEmdew:~#
> >>>
> >>>(some strange characters, then it quits)
> >>>
> >>>mdew:~# netstat -an|grep 4662
> >>>mdew:~#
> >>>
> >>>nirvana:/home/mdew# nmap 10.0.0.6
> >>>      
> >>>
> nmap -p4662 10.0.0.6

hmm
with all the changes it still cant see it

nirvana:/home/mdew# nmap -p4662 10.0.0.6

Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
The 1 scanned port on debian (10.0.0.6) is: closed

Nmap run completed -- 1 IP address (1 host up) scanned in 0.319 seconds


> Should work better.
> and a new version of nmap should work better, too.
> I heard that when you use nmap as your way it picks just well known 
> ports (/etc/service file ?) and then you won´t get this special port if 
> its not in there.(Maybe I´m wrong)
> 
> >>>Starting nmap V. 3.10ALPHA4 ( www.insecure.org/nmap/ )
> >>>Interesting ports on debian (10.0.0.6):
> >>>(The 1591 ports scanned but not shown below are in state: closed)
> >>>Port       State       Service
> >>>22/tcp     open        ssh
> >>>25/tcp     open        smtp
> >>>110/tcp    open        pop-3
> >>>111/tcp    filtered    sunrpc
> >>>113/tcp    open        auth
> >>>135/tcp    filtered    loc-srv
> >>>136/tcp    filtered    profile
> >>>137/tcp    filtered    netbios-ns
> >>>138/tcp    filtered    netbios-dgm
> >>>139/tcp    filtered    netbios-ssn
> >>>199/tcp    filtered    smux
> >>>826/tcp    filtered    unknown
> >>>953/tcp    filtered    rndc
> >>>8080/tcp   open        http-proxy
> >>>
> >>>
> >>>
> >>>
> >>>      
> >>>
> >>nc, I mean to say netcat.?
> >>    
> >>
> >
> >it was netcat
> >
> >apt-get install netcat
> >
> >
> >
> >
> >  
> >
> 
> 
> 


[-- Attachment #2: iptable_list.txt --]
[-- Type: text/plain, Size: 11602 bytes --]

Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:pop3
ACCEPT     udp  --  anywhere             anywhere           udp dpt:pop3
ACCEPT     udp  --  anywhere             anywhere           udp dpt:pop3
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:pop3
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:smtp
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:ssmtp
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-with icmp-port-unreachable
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:domain
ACCEPT     udp  --  anywhere             anywhere           udp dpt:domain
ACCEPT     udp  --  anywhere             anywhere           udp dpt:domain
ACCEPT     udp  --  anywhere             anywhere           udp spt:domain
ACCEPT     udp  --  anywhere             anywhere           udp spt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4661
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4661
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4661
ACCEPT     udp  --  anywhere             anywhere           udp spt:4661
ACCEPT     udp  --  anywhere             anywhere           udp spt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4662
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4662
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4662
ACCEPT     udp  --  anywhere             anywhere           udp spt:4662
ACCEPT     udp  --  anywhere             anywhere           udp spt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4665
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4665
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4665
ACCEPT     udp  --  anywhere             anywhere           udp spt:4665
ACCEPT     udp  --  anywhere             anywhere           udp spt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4665
REJECT     tcp  --  anywhere             anywhere           tcp dpt:111 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:smux reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:826 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:953 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:111 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:smux reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:826 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:953 reject-with icmp-port-unreachable

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
REJECT     tcp  --  anywhere             anywhere           tcp dpts:netbios-ns:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:netbios-ns:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:netbios-ns:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:netbios-ns:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:auth
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:domain
ACCEPT     tcp  --  paul.                anywhere           tcp dpt:4665 limit: avg 1/hour burst 5
ACCEPT     udp  --  paul.                anywhere           udp dpt:4665 limit: avg 1/hour burst 5
ACCEPT     udp  --  paul.                anywhere           udp spt:4665 limit: avg 1/hour burst 5
ACCEPT     tcp  --  paul.                anywhere           tcp spt:4665 limit: avg 1/hour burst 5
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4661
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4661
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4661
ACCEPT     udp  --  anywhere             anywhere           udp spt:4661
ACCEPT     udp  --  anywhere             anywhere           udp spt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4661
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4662
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4662
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4662
ACCEPT     udp  --  anywhere             anywhere           udp spt:4662
ACCEPT     udp  --  anywhere             anywhere           udp spt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4662
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp dpt:4665
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4665
ACCEPT     udp  --  anywhere             anywhere           udp dpt:4665
ACCEPT     udp  --  anywhere             anywhere           udp spt:4665
ACCEPT     udp  --  anywhere             anywhere           udp spt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4665
ACCEPT     tcp  --  anywhere             anywhere           tcp spt:4665
REJECT     tcp  --  anywhere             anywhere           tcp dpt:111 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:smux reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:826 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:953 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:111 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:smux reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:826 reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpt:953 reject-with icmp-port-unreachable
ACCEPT     tcp  --  anywhere             10.0.0.6           tcp dpt:4662
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp dpts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     tcp  --  anywhere             anywhere           tcp spts:135:netbios-ssn reject-with icmp-port-unreachable
REJECT     udp  --  anywhere             anywhere           udp spts:135:netbios-ssn reject-w

RE: opening a port..

[Dharmendra.T]

it was netcat
> 
> apt-get install netcat
> 
> 

try with netcat and let us know.

-- 
Dharmendra.T
Linux Enthu

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 21:11, Dharmendra.T wrote:
> it was netcat
> > 
> > apt-get install netcat
> > 
> > 
> 
> try with netcat and let us know.
> 
> -- 
> Dharmendra.T
> Linux Enthu

mdew:/bin# ls -al netcat
lrwxrwxrwx    1 root     root            2 Jan  9 19:34 netcat -> nc

mdew:~# netcat -help
[v1.10]
connect to somewhere:   nc [-options] hostname port[s] [ports] ...
listen for inbound:     nc -l -p port [-options] [hostname] [port]
options:
        -e prog                 program to exec after connect
[dangerous!!]
        -b                      allow broadcasts
        -g gateway              source-routing hop point[s], up to 8
        -G num                  source-routing pointer: 4, 8, 12, ...
        -h                      this cruft
        -i secs                 delay interval for lines sent, ports
scanned
        -l                      listen mode, for inbound connects
        -n                      numeric-only IP addresses, no DNS
        -o file                 hex dump of traffic
        -p port                 local port number
        -r                      randomize local and remote ports
        -q secs                 quit after EOF on stdin and delay of
secs
        -s addr                 local source address
        -t                      answer TELNET negotiation
        -u                      UDP mode
        -v                      verbose [use twice to be more verbose]
        -w secs                 timeout for connects and final net reads
        -z                      zero-I/O mode [used for scanning]
port numbers can be individual or ranges: lo-hi [inclusive]
mdew:~# netcat -p 4662
no destination
mdew:~# nc -l -p 4662
ã;ãÛûÇΨºUû×JüGâ°ødfg<øÁoÆmdew:~# netcat
Cmd line:
mdew:~# netcat -l -p 4662
ã;ãÛûÇΨºUû×JüGâ°ødfg<øÁoÆmdew:~# netcat -l -p 4662
ãP<H¹ogÝT'␉´\¾ä6▒http://emule-project.net<6ÁoÆmdew:~#

Re: opening a port..

[Athan]

[-- Attachment #1: Type: text/plain, Size: 870 bytes --]

On Thu, Jan 09, 2003 at 09:24:32PM +1300, mdew wrote:
> mdew:~# netcat -p 4662
> no destination
> mdew:~# nc -l -p 4662
> ??;??????????????U????J??G??????dfg<????o??mdew:~# netcat
> Cmd line:
> mdew:~# netcat -l -p 4662
> ??;??????????????U????J??G??????dfg<????o??mdew:~# netcat -l -p 4662
> ??P<H??og??T'?????\????6???http://emule-project.net<6??o??mdew:~#

   I suspect you'll find that's other eDonkey clients connecting to the
netcat ;).  Why not just make SURE you're running the client for testing
this?  You'll know when it's working as the eDonkey client will have
clients connecting.

-Ath
-- 
- Athanasius = Athanasius(at)miggy.org / http://www.miggy.org/
                  Finger athan(at)fysh.org for PGP key
	   "And it's me who is my enemy. Me who beats me up.
Me who makes the monsters. Me who strips my confidence." Paula Cole - ME

[-- Attachment #2: Type: application/pgp-signature, Size: 240 bytes --]

RE: opening a port..

[Rob Sterenborg]

> > # netstat -an|grep 4662
> > should tell you if your box is listening at all on port 4662.
> > 
> > If you run eDonkey server on the firewall box, open port in 
> the INPUT
> > chain.
> > If your eDonkey server is *behind* the firewall, open the 
> port in the
> > FORWARD chain, and add a DNAT rule in the nat table -> 
> PREROUTING chain.
> 
> the edonkey server is behind the firewall
> 
> 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> 
> iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 
> --dport 4662 -j DNAT --to 10.0.0.6:4662
> iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> 
> like that?

If default policy for FORWARD is ACCEPT then it should work without the
FORWARD, else you need it.

For me such a setup works.

If you do a netstat -an on the eDonkey box (you don't need netcat to do
that) and it doesn't report 4662 then eDonkey is not running/listening
and you can never connect.

About opening ports for eDonkey, from the eDonkey website :
(http://www.edonkey2000.com/documentation/index.html)
====
2. Software Firewall
If you are running software like Norton Personal Firewall, Tiny
Firewall, Zone Alarm, BlackIce or <...snip...>
Alternatively, with some more advanced firewalls, or firewall settings
you will need to open ports 4661 and 4662 TCP for both incoming and out
going connections, as well as port 4665 UDP for both incoming and
outgoing connections.

3. Hardware firewall
Setting up your hardware firewall is a tad more difficult, but if you
have one chances are you know what your doing. You will need to set it
to allow both incoming and outgoing connections on 4661 & 4662 TCP and
port 4665 UDP. 
====
So you need to open more ports than just 4662/tcp I think.
And IMHO you want a statefull packetfilter, if you haven't made it
already statefull.
(iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT)


Rob

RE: opening a port..

[mdew]

On Thu, 2003-01-09 at 21:21, Rob Sterenborg wrote:
> > > # netstat -an|grep 4662
> > > should tell you if your box is listening at all on port 4662.
> > > 
> > > If you run eDonkey server on the firewall box, open port in 
> > the INPUT
> > > chain.
> > > If your eDonkey server is *behind* the firewall, open the 
> > port in the
> > > FORWARD chain, and add a DNAT rule in the nat table -> 
> > PREROUTING chain.
> > 
> > the edonkey server is behind the firewall
> > 
> > 210.54.175.12--->eth0 (Router) 10.0.0.6(eth1)--->10.0.0.x
> > 
> > iptables -t nat -A PREROUTING -p tcp -i eth0 -d 210.54.175.12 
> > --dport 4662 -j DNAT --to 10.0.0.6:4662
> > iptables -A FORWARD -p tcp -i eth0 -d 10.0.0.6 --dport 4662 -j ACCEPT
> > 
> > like that?
> 
> If default policy for FORWARD is ACCEPT then it should work without the
> FORWARD, else you need it.
> 
> For me such a setup works.
> 
> If you do a netstat -an on the eDonkey box (you don't need netcat to do
> that) and it doesn't report 4662 then eDonkey is not running/listening
> and you can never connect.
> 
> About opening ports for eDonkey, from the eDonkey website :
> (http://www.edonkey2000.com/documentation/index.html)
> ====
> 2. Software Firewall
> If you are running software like Norton Personal Firewall, Tiny
> Firewall, Zone Alarm, BlackIce or <...snip...>
> Alternatively, with some more advanced firewalls, or firewall settings
> you will need to open ports 4661 and 4662 TCP for both incoming and out
> going connections, as well as port 4665 UDP for both incoming and
> outgoing connections.
> 
> 3. Hardware firewall
> Setting up your hardware firewall is a tad more difficult, but if you
> have one chances are you know what your doing. You will need to set it
> to allow both incoming and outgoing connections on 4661 & 4662 TCP and
> port 4665 UDP. 
> ====
> So you need to open more ports than just 4662/tcp I think.
> And IMHO you want a statefull packetfilter, if you haven't made it
> already statefull.
> (iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT)
> 
> 
> Rob
> 
> 

ok heres my current script, yes its inefficient, but thats not the major
problem.. 4662 port :/ I relise that theres more ports available for
edonkey to use, but opening ONE port would be a start.

i added "iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j
ACCEPT" without anything happening...


/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe ip_conntrack_irc
/sbin/modprobe ip_nat_irc
/sbin/modprobe ip_nat_ftp

# <<<<< COMPLETE-BLOCKAGE SMB/Samba Traffic >>>>>

iptables -A FORWARD -o eth1 -p tcp --dport 135:139 -j REJECT
iptables -A FORWARD -o eth1 -p udp --dport 135:139 -j REJECT
iptables -A FORWARD -o eth1 -p tcp --sport 135:139 -j REJECT
iptables -A FORWARD -o eth1 -p udp --sport 135:139 -j REJECT

iptables -A FORWARD -o eth0 -p tcp --dport 135:139 -j REJECT
iptables -A FORWARD -o eth0 -p tcp --sport 135:139 -j REJECT
iptables -A FORWARD -o eth0 -p udp --sport 135:139 -j REJECT
iptables -A FORWARD -o eth0 -p udp --dport 135:139 -j REJECT
iptables -A INPUT -i eth0 -p tcp --dport 135:139 -j REJECT
iptables -A INPUT -i eth0 -p udp --dport 135:139 -j REJECT
iptables -A INPUT -i eth0 -p tcp --sport 135:139 -j REJECT
iptables -A INPUT -i eth0 -p udp --sport 135:139 -j REJECT

iptables -A INPUT -i eth1 -p tcp --dport 135:139 -j REJECT
iptables -A INPUT -i eth1 -p udp --dport 135:139 -j REJECT
iptables -A INPUT -i eth1 -p tcp --sport 135:139 -j REJECT
iptables -A INPUT -i eth1 -p udp --sport 135:139 -j REJECT

iptables -A OUTPUT -o eth0 -p tcp --dport 135:139 -j REJECT
iptables -A OUTPUT -o eth0 -p udp --dport 135:139 -j REJECT
iptables -A OUTPUT -o eth0 -p tcp --sport 135:139 -j REJECT
iptables -A OUTPUT -o eth0 -p udp --sport 135:139 -j REJECT

iptables -A OUTPUT -o eth1 -p tcp --dport 135:139 -j REJECT
iptables -A OUTPUT -o eth1 -p udp --dport 135:139 -j REJECT
iptables -A OUTPUT -o eth1 -p tcp --sport 135:139 -j REJECT

iptables -A OUTPUT -o eth1 -p udp --sport 135:139 -j REJECT

iptables -A INPUT -i eth0 -p tcp --dport 113 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --dport 113 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 113 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --sport 113 -j ACCEPT

iptables -A FORWARD  -p tcp --dport auth -i eth0 -j ACCEPT
iptables -A FORWARD  -p tcp --sport auth -i eth0 -j ACCEPT

iptables -A FORWARD  -p tcp --dport auth -i eth1 -j ACCEPT
iptables -A FORWARD  -p tcp --sport auth -i eth1 -j ACCEPT

iptables -A FORWARD -o eth0 -p tcp --dport 113 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --dport 113 -j ACCEPT
iptables -A FORWARD -i eth0 -p tcp --dport 113 -j ACCEPT
iptables -A FORWARD -i eth1 -p tcp --dport 113 -j ACCEPT

iptables -A FORWARD -p tcp -s 10.0.0.9 --dport 4665 -m limit --limit
1/hour -j ACCEPT
iptables -A FORWARD -p udp -s 10.0.0.9 --dport 4665 -m limit --limit
1/hour -j ACCEPT
iptables -A FORWARD -p udp -s 10.0.0.9 --sport 4665 -m limit --limit
1/hour -j ACCEPT
iptables -A FORWARD -p tcp -s 10.0.0.9 --sport 4665 -m limit --limit
1/hour -j ACCEPT

# Block Outside the Network
iptables -A FORWARD -o eth0 -p tcp --dport 111 -j REJECT
iptables -A INPUT -i eth0 -p tcp --dport 111 -j REJECT
iptables -A FORWARD -o eth0 -p tcp --dport 199 -j REJECT
iptables -A INPUT -i eth0 -p tcp --dport 199 -j REJECT
iptables -A FORWARD -o eth0 -p tcp --dport 826 -j REJECT
iptables -A INPUT -i eth0 -p tcp --dport 826 -j REJECT
iptables -A FORWARD -o eth0 -p tcp --dport 953 -j REJECT
iptables -A INPUT -i eth0 -p tcp --dport 953 -j REJECT

# Block Inside the Network
iptables -A FORWARD -o eth1 -p tcp --dport 111 -j REJECT
iptables -A INPUT -i eth1 -p tcp --dport 111 -j REJECT
iptables -A FORWARD -o eth1 -p tcp --dport 199 -j REJECT
iptables -A INPUT -i eth1 -p tcp --dport 199 -j REJECT
iptables -A FORWARD -o eth1 -p tcp --dport 826 -j REJECT
iptables -A INPUT -i eth1 -p tcp --dport 826 -j REJECT
iptables -A INPUT -i eth1 -p tcp --dport 953 -j REJECT

iptables -A INPUT -i eth0 -p tcp --dport 4661 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 4661 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --dport 4661 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --dport 4661 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --sport 4661 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --sport 4661 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --sport 4661 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 4661 -j ACCEPT

iptables -A FORWARD -o eth0 -p tcp --dport 4661 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --dport 4661 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --dport 4661 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --dport 4661 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --sport 4661 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --sport 4661 -j ACCEPT
ptables -A FORWARD -o eth0 -p tcp --sport 4661 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT

iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 4665 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --dport 4665 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --dport 4665 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --dport 4665 -j ACCEPT
iptables -A INPUT -i eth1 -p tcp --sport 4665 -j ACCEPT
iptables -A INPUT -i eth1 -p udp --sport 4665 -j ACCEPT
iptables -A INPUT -i eth0 -p udp --sport 4665 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 4665 -j ACCEPT

iptables -A FORWARD -o eth0 -p tcp --dport 4665 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --dport 4665 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --dport 4665 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --dport 4665 -j ACCEPT
iptables -A FORWARD -o eth0 -p udp --sport 4665 -j ACCEPT
iptables -A FORWARD -o eth1 -p udp --sport 4665 -j ACCEPT
iptables -A FORWARD -o eth1 -p tcp --sport 4665 -j ACCEPT
iptables -A FORWARD -o eth0 -p tcp --sport 4665 -j ACCEPT

RE: opening a port..

[Rob Sterenborg]

> ok heres my current script, yes its inefficient, but thats 
> not the major problem.. 4662 port :/ I relise that theres 
> more ports available for edonkey to use, but opening ONE port 
> would be a start.
> 
> i added "iptables -A FORWARD -m state --state 
> RELATED,ESTABLISHED -j ACCEPT" without anything happening...
> 

<snip>

> iptables -A FORWARD -o eth1 -p udp --dport 4665 -j ACCEPT 
> iptables -A FORWARD -o eth0 -p udp --dport 4665 -j ACCEPT 
> iptables -A FORWARD -o eth0 -p udp --sport 4665 -j ACCEPT 
> iptables -A FORWARD -o eth1 -p udp --sport 4665 -j ACCEPT 
> iptables -A FORWARD -o eth1 -p tcp --sport 4665 -j ACCEPT 
> iptables -A FORWARD -o eth0 -p tcp --sport 4665 -j ACCEPT
> 

Okay, let's leave these rules alone for a moment.
*IS* your eDonkey server running/listening. If you do a netstat -an *on
the machine that's supposed to be running eDonkey* (you don't need
netcat to do this) then it must report one (or more) ports belonging to
eDonkey as listening .
If not, you can try whatever you want but it won't work ; you will never
connect, not even local. Forwarding is not going to help you then and
AFAIK you can't test if forwarding is working (which doesn't say it's
impossible ; I just don't know how).

Besides, going back to the ruleset, I don't see an "echo 1 >
/proc/sys/net/ipv4/ip_forward". You may have setup the rules correctly
but it's not going to forward anything untill you did the above "echo".


Rob

Re: opening a port..

[Rodrigo Hidalgo]

Hi,

I guess youre scenario is like this:

some_machine - - - Router - - - - server_maybe_not_existing(4662)

If you want to be able to get any positive respons you should do a 

some_machine> telnet server_maybe_not_existing 4662

The router will not tell you the port is open.

Good Luck!

/r


On 9 Jan 2003, mdew wrote:

> Date: 09 Jan 2003 01:52:07 +1300
> From: mdew <mdew@mdew.dyndns.org>
> To: Dharmendra.T <dharmu@nsecure.net>
> Cc: netfilter <netfilter@lists.netfilter.org>
> Subject: Re: opening a port..
> 
> On Thu, 2003-01-09 at 01:33, Dharmendra.T wrote:
> > 
> > 
> > On Wed, 2003-01-08 at 17:42, mdew wrote:
> > > 
> > > Hi,
> > > Just *testing* this out..
> > > 
> > > iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> > > 
> > > iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> > > 
> > > yet, when i try to telnet to it,
> > > 
> > > mdew:~# telnet 127.0.0.1 4662
> > > Trying 127.0.0.1...
> > > telnet: Unable to connect to remote host: Connection refused
> > > 
> > > Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> > > just seems a little strange that i cant see 4662 (Edonkey port) on the
> > > router.
> > > 
> > > -mdew
> > > 
> > > 
> > Note:
> > telnet 127.0.0.1 port
> > 
> >  This will not go through any of the interfaces(eth*). You should allow
> > this through -i lo.
> > 
> > Here some how you are getting connected and you are getting the response
> > connection refused. Probably you are not running the service on the
> > router!.
> > 
> > -- 
> > Dharmendra.T
> > Linux Enthu
> > 
> ok, telnet from another machine to the router.
> 
> telnet 10.0.0.6 4662
> Trying 10.0.0.6...
> telnet: Unable to connect to remote host: Connection refused
> 
> what "service" should I be running? I simply want 4662 open both ways.
> 
> -mdew
> 
> 

Re: opening a port..

[Dharmendra.T]

On Wed, 2003-01-08 at 18:22, mdew wrote:
> On Thu, 2003-01-09 at 01:33, Dharmendra.T wrote:
> > 
> > 
> > On Wed, 2003-01-08 at 17:42, mdew wrote:
> > > 
> > > Hi,
> > > Just *testing* this out..
> > > 
> > > iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> > > iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> > > 
> > > iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> > > iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> > > 
> > > yet, when i try to telnet to it,
> > > 
> > > mdew:~# telnet 127.0.0.1 4662
> > > Trying 127.0.0.1...
> > > telnet: Unable to connect to remote host: Connection refused
> > > 
> > > Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> > > just seems a little strange that i cant see 4662 (Edonkey port) on the
> > > router.
> > > 
> > > -mdew
> > > 
> > > 
> > Note:
> > telnet 127.0.0.1 port
> > 
> >  This will not go through any of the interfaces(eth*). You should allow
> > this through -i lo.
> > 
> > Here some how you are getting connected and you are getting the response
> > connection refused. Probably you are not running the service on the
> > router!.
> > 
> > -- 
> > Dharmendra.T
> > Linux Enthu
> > 
> ok, telnet from another machine to the router.
> 
> telnet 10.0.0.6 4662
> Trying 10.0.0.6...
> telnet: Unable to connect to remote host: Connection refused
> 
> what "service" should I be running? I simply want 4662 open both ways.
> 
> -mdew
> 
Install nc and run
 
#nc -l -p 4662

And then try to connect. Some service should be running on the port else
you will get the same error message.

-- 
Dharmendra.T
Linux Enthu

Re: opening a port..

[Robert Botha]

Check if the service is listening..and if it's listening on *:4662 or on a
specific interface.
netstat -tupln|grep ":4662"

----- Original Message -----
From: "Dharmendra.T" <dharmu@nsecure.net>
To: "mdew" <mdew@mdew.dyndns.org>
Cc: "netfilter" <netfilter@lists.netfilter.org>
Sent: Wednesday, January 08, 2003 2:33 PM
Subject: Re: opening a port..


>
>
> On Wed, 2003-01-08 at 17:42, mdew wrote:
> >
> > Hi,
> > Just *testing* this out..
> >
> > iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> >
> > iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> >
> > yet, when i try to telnet to it,
> >
> > mdew:~# telnet 127.0.0.1 4662
> > Trying 127.0.0.1...
> > telnet: Unable to connect to remote host: Connection refused
> >
> > Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> > just seems a little strange that i cant see 4662 (Edonkey port) on the
> > router.
> >
> > -mdew
> >
> >
> Note:
> telnet 127.0.0.1 port
>
>  This will not go through any of the interfaces(eth*). You should allow
> this through -i lo.
>
> Here some how you are getting connected and you are getting the response
> connection refused. Probably you are not running the service on the
> router!.
>
> --
> Dharmendra.T
> Linux Enthu
>
>
>
>
>

Re: opening a port..

[mdew]

On Thu, 2003-01-09 at 01:12, mdew wrote:
> 
> Hi,
> Just *testing* this out..
> 
> iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> 
> iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> 
> yet, when i try to telnet to it,
> 
> mdew:~# telnet 127.0.0.1 4662
> Trying 127.0.0.1...
> telnet: Unable to connect to remote host: Connection refused
> 
> Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> just seems a little strange that i cant see 4662 (Edonkey port) on the
> router.
> 
> -mdew

ok, from another machine->router. (same problem)

telnet 10.0.0.6 4662
Trying 10.0.0.6...
telnet: Unable to connect to remote host: Connection refused

Re: opening a port..

[Raymond Leach]

[-- Attachment #1: Type: text/plain, Size: 2514 bytes --]

On Wed, 2003-01-08 at 14:53, mdew wrote:
> On Thu, 2003-01-09 at 01:12, mdew wrote:
> > 
> > Hi,
> > Just *testing* this out..
> > 
> > iptables -A INPUT -i eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A INPUT -i eth0 -p tcp --sport 4662 -j ACCEPT
> > 
> > iptables -A FORWARD -o eth0 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --dport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p udp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth1 -p tcp --sport 4662 -j ACCEPT
> > iptables -A FORWARD -o eth0 -p tcp --sport 4662 -j ACCEPT
> > 
> > yet, when i try to telnet to it,
> > 
> > mdew:~# telnet 127.0.0.1 4662
> > Trying 127.0.0.1...
> > telnet: Unable to connect to remote host: Connection refused
> > 
> > Yeah I know I have lots of unnessary rules, but im only testing 'em...it
> > just seems a little strange that i cant see 4662 (Edonkey port) on the
> > router.
> > 
> > -mdew
> 
> ok, from another machine->router. (same problem)
> 
> telnet 10.0.0.6 4662
> Trying 10.0.0.6...
> telnet: Unable to connect to remote host: Connection refused
> 
Connection refused means the router is not listening on that port ...

> 
-- 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(  Raymond Leach                       )
 ) Knowledge Factory                  (
(                                      )
 ) Tel: +27 11 445 8100               (
(  Fax: +27 11 445 8101                )
 )                                    (
(  http://www.knowledgefactory.co.za/  )
 ) http://www.saptg.co.za/            (
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   o                                o
    o                              o
        .--.                  .--.
       | o_o|                |o_o |
       | \_:|                |:_/ |
      / /   \\              //   \ \
     ( |     |)            (|     | )
     /`\_   _/'\          /'\_   _/`\
     \___)=(___/          \___)=(___/

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]

RE: opening a port..

[Rob Sterenborg]

> I heard that when you use nmap as your way it picks just well known 
> ports (/etc/service file ?) and then you won´t get this 
> special port if 
> its not in there.(Maybe I´m wrong)

I have a /usr/share/nmap/nmap-services file. I think nmap is picking
that file to scan for services. It's more detailed than /etc/services,
but indeed it doesn't include eDonkey ports.


Rob