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| Thread | Thread Starter | Forum | Replies | Last Post |
| Help needed in IPTables firewall/router setup - Linux | chandan_m | Security | 0 | 08-24-2007 03:20 PM |
| Linux IPTABLES help | nogumo | UNIX for Dummies Questions & Answers | 0 | 06-18-2005 04:31 PM |
| LINUX 9 IPTABLES and DNS | frankkahle | Linux | 6 | 03-10-2005 09:23 PM |
| IPtables | Jody | UNIX for Dummies Questions & Answers | 3 | 05-31-2003 05:08 PM |
| how to configure a linux box as a firewall using iptables | Deuce | UNIX for Dummies Questions & Answers | 2 | 11-06-2001 01:25 PM |
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LINUX 9 IPTABLES and DNS
I have installed a linux 9 router/firewall and have issues with outside DNS queries making it in. here are my IPTABLE rules, can anyone make some suggestions?
ETH1 is my outside facing Interface, ETH0 is my inside facing interface. Accept If input interface is not eth1 Accept If protocol is TCP and TCP flags ACK (of ACK) are set Accept If protocol is UDP and input interface is eth1 and destination port is 1024:65535 and source port is 53 Accept If state of connection is ESTABLISHED Accept If state of connection is RELATED Accept If protocol is TCP and destination is 216.58.39.241 and input interface is eth1 and destination port is 110 Accept If protocol is TCP and destination is 216.58.39.241 and input interface is eth1 and destination port is 25 Accept If protocol is TCP and input interface is eth1 and source and destination ports are 6346 Accept If protocol is ICMP and ICMP type is source-quench Accept If protocol is ICMP and ICMP type is time-exceeded Accept If protocol is ICMP and ICMP type is parameter-problem Accept If protocol is TCP and destination port is ssh Accept If protocol is TCP and destination port is auth |
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First suggestion is not to break the rules - you posted this question the other day in the Linux forum. Moderators, please remove.
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