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I am trying to set up a web server which would face the outside but also the internal network and work as a router for the internal network at the same time. The NAT and server from the outside work fine, but I cannot access the web server from the internal network (addresses 192.168.1.0/24). The server lan interface is 192.168.1.1. I cannot find the problem. I tried to set up iptables logging but did not find anything useful. Bearing in mind that I am a linux newbie, can you spot any problem in my iptables script? Much appreciated.
===================Here is the script I invoke to start iptables.
#iptables firewall script for sharing
#broadband Internet, with no public services
Well, from what I can see, I think you might be missing a rule to allow a connection from within the LAN to connect to the interface that is in the LAN on your webserver/router. Something to the effect of:
$ipt -A INPUT -s 192.168.1.0/24 -d 192.168.1.1 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
Now that's off the top of my head, so you might need to adjust that line above by adding specific port(s) and/or interface, but it should be something like that, if memory serves correctly.
HTH. Let us know.
Last edited by ShadowCat8; 06-28-2012 at 02:36 PM.