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iptables routing - host inaccessible publicly

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linux-howto

http://serverfault.com – i have a dedicated openVPN server sitting behind a NAT router and i have the server's static IP set in the DMZ; the problem is that with current rule set (as seen in the screenshot below) i cannot connect to the VPN server from the internet, nor SSH for that matter; however, if i allow traffic on eth0 all is fine but that pretty much allows any kind of traffic to reach the host and that completely defeats the purpose of the iptables ruleset; in the screenshot i have set traffic to eth0 (second rule bottom to top) to nothing and the host is inaccessible with the rules i have imposed above, but (HowTos)