Tom Allison wrote:
I was trying to write up an iptables script last night and managed to get it work, or so I thought.
When I run it, the interface just dies. It's still configured and "up", but any kind of traffic sent to it is ignored. I even added lines like: iptables -A INPUT -i $IFACE -j LOG and I don't get any logging in /var/log/syslog
Try using the dmesg command.
What's worse, if I remove all the rules and reset the default policy to ACCEPT it doesn't get any better.
Odd.
Cute problem solved.
I had set the table, "mangle" to DROP and didn't realize that everything goes through this table. Since I'm not using NAT I was ignoring that table.
I was taking notes from a book and realized that the guy who wrote it made one mistake. But put all the tables to a default Policy of DROP which isn't really the way to go. IIRC only the table, "filter" should have the default of DROP. Probably to avoid stupid questions on the internet... :)
Thanks to all who responded.
Now I just have to figure out how to get FTP straightened out.
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