iptables

mule · 08-19-2003, 01:42 AM

Hello all,

i have an old machine running suse 8.0 on it. now, i inserted some rows in the nat table - prerouting. with iptables -A -t nat ....and so on....

everything works, if i do iptables -t nat -L i see my entry. But if i reboot it's no longer there! so, what do you think did i miss?

thx
Roger

Read_Icculus · 08-19-2003, 03:33 AM

Are you using a script to store your iptables entries? Or are you using iptables-save and iptables-restore? iptables will lose all rules and chains when the system reboots unless they are saved in a script or with iptables-save. If your distro already has a firewall script you should be able to add your iptables rules to it and everything should work.

mule · 08-19-2003, 07:08 AM

i tried it with iptables-save but didn't help i think i figured out a script in /etc/sysconfig....i will have a look on this...thx!

mule · 08-19-2003, 07:41 AM

to not too much fiddling around, i wrote a short shell-script and inserted iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128 in it. this shell-script will be loaded from runlevel 3 on. i think this will work too, if it gets startet AFTER the firewall-script itself!

Mathieu · 08-19-2003, 12:31 PM

If you want to save your iptables rules, login as root and type:

Code:

service iptables save

This will save your rules in the /etc/sysconfig/iptables file.

mule · 08-20-2003, 01:04 AM

this is for redhat, it seems, but how is it for suse 8.0??? thx anyway...

unSpawn · 08-20-2003, 05:45 PM

this is for redhat, it seems, but how is it for suse 8.0???
Dunno, maybe look at /etc/rc.config* ?

mule · 08-21-2003, 12:49 AM

Suse has its own scripts in /etc/sysconfig/SuSEfirewall2 ...so nevermind, i wrote a shell-scripts that will be loaded at startup....function is there!