iptables - Solved

[Patrick Derwael]

Nigel,

This is exactly what I needed, thanks a lot !!


>>>Patrick,
>
> You need to add ESTABLISHED,RELATED rules to allow responses to
> connections
> originating on the machine in question.
>
> iptables -A INPUT   -m state --state ESTABLISHED,RELATED -j ACCEPT
>
> ESTABLISHED,RELATED allows packets which are part of an established TCP
> connection i.e. the 3-way SYN-SYN/ACK-ACK has completed with no subsequent
> RST.
>   It also allows UDP packets from a source IP/port which was a destination
> within the past 30s.
>
>
> --
> Nigel Wade, System Administrator, Space Plasma Physics Group,
>              University of Leicester, Leicester, LE1 7RH, UK
> E-mail :    nmw at ion.le.ac.uk
> Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555
>
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