From: mouss <mouss@netoyen.net>
To: netfilter@vger.kernel.org
Subject: Re: iptables block samba or not?
Date: Thu, 24 Jan 2008 22:13:22 +0100 [thread overview]
Message-ID: <4798FF72.2020609@netoyen.net> (raw)
In-Reply-To: <200801242017.m0OKH0lJ011470@indigo.cs.bgu.ac.il>
Eial Czerwacki wrote:
> I've got this too has part of the rules
>
> -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
>
but not for output. what if your linux box initiates the connection?
Also, as I said before, allow for icmp (echo if you add a stateful
accept for output icmp's if you don't have the stateful rule).
>
> On Thu 24 Jan 0:00 2008 Dzianis Kahanovich wrote:
>
>> Eial Czerwacki wrote:
>>
>>
>>> -A INPUT -p tcp -m state --state NEW --dport 135 -s 132.72.144.0/20 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 139 -s 132.72.144.0/20 -j ACCEPT
>>> -A INPUT -p udp -m state --state NEW --dport 137:138 -s 132.72.144.0/20 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 426 -s 132.72.144.0/20 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 445 -s 132.72.144.0/20 -j ACCEPT
>>>
>>> -A INPUT -p tcp -m state --state NEW --dport 135 -s 192.168.114.0/24 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 139 -s 192.168.114.0/24 -j ACCEPT
>>> -A INPUT -p udp -m state --state NEW --dport 137:138 -s 192.168.114.0/24 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 426 -s 192.168.114.0/24 -j ACCEPT
>>> -A INPUT -p tcp -m state --state NEW --dport 445 -s 192.168.114.0/24 -j ACCEPT
>>>
>>> # up to 5 Bit-torrent connections
>>> -A INPUT -p tcp -m state --state NEW --dport 6881:6886 -j ACCEPT
>>>
>>> #else
>>> -A INPUT -j REJECT --reject-with icmp-port-unreachable
>>>
>> You ACCEPTing only NEW connection state - initial packets for every session.
>> Remove "-m state -- state NEW".
>>
>>
>> --
>> WBR,
>> Denis Kaganovich, mahatma@eu.by http://mahatma.bspu.unibel.by
>>
>> -
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>>
>>
>
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe netfilter" in
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next prev parent reply other threads:[~2008-01-24 21:13 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-21 22:33 iptables block samba or not? Eial Czerwacki
2008-01-22 1:52 ` Leonardo Rodrigues Magalhães
2008-01-23 22:00 ` Dzianis Kahanovich
2008-01-24 20:16 ` mouss
2008-01-24 20:17 ` Eial Czerwacki
2008-01-24 21:13 ` mouss [this message]
2008-01-24 21:37 ` Martijn Lievaart
2008-01-25 10:40 ` Eial Czerwacki
2008-01-25 11:49 ` mouss
2008-01-25 13:35 ` Eial Czerwacki
2008-01-25 13:42 ` mouss
2008-01-25 14:27 ` Eial Czerwacki
2008-01-25 15:15 ` mouss
2008-01-25 16:02 ` Eial Czerwacki
2008-01-25 16:13 ` mouss
2008-01-25 16:53 ` Eial Czerwacki
2008-01-25 19:02 ` Martijn Lievaart
2008-01-25 16:04 ` Steven Ayre
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