I installed 'ipchains' on my Redhat 7.0 mail server today. Not being a
firewall guru, I had the www.linux-firewall-tools.com/linux/firewall/ site
build me a script. I had pretty good luck with it on a web server but I've
run into a problem with Qmail. As soon as I activate the firewall, mail
gets backed up.
/var/log/messages says:
Dec 10 01:02:49 meg kernel: Packet log: output REJECT eth0 PROTO=6 166.84.147.
124:3687 206.26.89.202:25 L=1064 S=0x00 I=46413 F=0x0000 T=64 (#37)
Dec 10 01:02:55 meg kernel: Packet log: output REJECT eth0 PROTO=6 166.84.147.
124:4396 204.242.84.1:25 L=60 S=0x00 I=46421 F=0x0000 T=64 SYN (#37)
Any idea what's causing this?
The problematic firewall script is rather large (25k) so I've posted it on
my web server at http://www.magpie.com/work/rc.firewall.html
-----------------------[ http://www.magpie.com ]-------=o&>o-------
Steve Manes
Brooklyn, N'Yawk