Re: NFS server + iptables == pain

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> -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 111 --syn -j ACCEPT

I believe you will need to remove the above rule and replace it w/ these
two following rules.

-A RH-Lokkit-0-50-INPUT -i <internal nic> -p tcp -m tcp --dport nfs -j ACCEPT
-A RH-Lokkit-0-50 INPUT -p <internal nic> -p tcp -m tcp --dport sunrpc -j
ACCEPT

You might also want to add UDP access.

-A RH-Lokkit-0-50-INPUT -i <internal nic> -p udp -m udp --dport nfs -j ACCEPT
-A RH-Lokkit-0-50 INPUT -p <internal nic> -p udp -m udp --dport sunrpc -j
ACCEPT

you should also probably modify your nfs start up script in

/etc/init.d/nfs


NFS has a habit of opening up a RANDOM port for mountd so
you can hardcode this port in the start up script by adding

MOUNTD_PORT=100
if [ -n "$MOUNTD_PORT" ]; then
    RPCMOUNTDOPTS="$RPCMOUNTDOPTS --port $MOUNTD_PORT"
fi

I think I added this right around like 48.

In fact I can't remember if I even added the whole thing
but by screwing around w/
MOUNTD_PORT
you can then set the Firewall rules around allowing access to this port

Happy firewalling.






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