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From: Fajar Priyanto <fajarpri@arinet.org>
To: netfilter@lists.netfilter.org
Subject: shorewall: how to open high port
Date: Thu, 1 Apr 2004 10:13:26 +0700	[thread overview]
Message-ID: <200404011013.29208.fajarpri@arinet.org> (raw)

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Dear all,
Anyone using shorewall?
I have this strange case. In my notebook, I set the policy and rules like
this:
#SOURCE         DEST            POLICY          LOG LEVEL       LIMIT:BURST
net     $FW     DROP    ULOG
$FW     net     ACCEPT  ULOG
loc     net     ACCEPT  ULOG
all     all     DROP    ULOG
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

#ACTION  SOURCE         DEST            PROTO   DEST    SOURCE     ORIGINAL
#                                               PORT    PORT(S)    DEST
ACCEPT:ULOG     loc     $FW     tcp     110     -
ACCEPT:ULOG     loc     $FW     tcp     25      -
ACCEPT:ULOG     loc     $FW     tcp     22,21   -
ACCEPT:ULOG     $FW     net     tcp     5050    -
ACCEPT:ULOG     $FW     all     all     -       -
DROP:ULOG       net     $FW     all     -       -
ACCEPT:ULOG     net     $FW     tcp     80      -
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

And in my local server, very similar:
#SOURCE         DEST            POLICY          LOG LEVEL       LIMIT:BURST
fw      net     ACCEPT
net     fw      DROP    info
#net    all     DROP    info
all     all     REJECT  info
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE

#ACTION  SOURCE         DEST            PROTO   DEST    SOURCE     ORIGINAL
#                                               PORT    PORT(S)    DEST
ACCEPT  net     fw      udp     53      -
ACCEPT  net     fw      tcp
80,443,53,22,20,21,25,109,110,143,783,993,10000 -
ACCEPT  fw      net     all     -
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

But the PROBLEM is:
I can't connect to my server using FTP, nor from the server to my notebook. In
/var/log/messages of the server, it drops high port:
Mar 31 21:14:20 server2 kernel: Shorewall:net2fw:DROP:IN=eth0 OUT=
MAC=00:09:6b:a5:b1:65:00:c0:9f:28:15:65:08:00 SRC=192.168.0.234
DST=192.168.0.236 LEN=60 TOS=0x08 PREC=0x00 TTL=64 ID=29064 DF PROTO=TCP
SPT=20 DPT=32802 WINDOW=5840 RES=0x00 SYN URGP=0

Can anyone give me direction here? Why the setting doesn't work? How do I open
this "high port"? Is it safe to do so?
TIA

- --
Fajar Priyanto | Reg'd Linux User #327841 | http://linux.arinet.org
20:20:11 up 12:23, Mandrake Linux release 9.2 (FiveStar) for i586
public key: https://www.arinet.org/fajar-pub.key




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             reply	other threads:[~2004-04-01  3:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-01  3:13 Fajar Priyanto [this message]
2004-04-01  5:28 ` shorewall: how to open high port Rob Sterenborg
2004-04-01 14:27   ` Tom Eastep

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