I've run across some weird behavior involving ipchains that may be a
bug. Who should I report it to?
Here's the situation: I run Linux on a firewall box, and wanted to
use ipchains to block incoming pop3 access (eth1 is my external
interface). The following line in my rc.local file:
ipchains -A input -p tcp -y -i eth1 -dport pop3 -j DENY
caused my boot process to hang.
The error, of course, is that it should be --dport (double dash), not
- (single dash)... but* the boot process for this seems pretty
extreme, particularly since if you enter it a command prompt
"manually" you get a basic error message!
Of course, this did cause me to learn a whole lot about single user
mode and remounting readonly file systems, so maybe it wasn't all bit