HELP, cannot reboot! Hangs at "Starting Firewall"

medic215 · 09-05-2006, 12:14 PM

i recently had to add some new firewall rules blocking all incoming and outgoing tcp packets for port 6000-7000. After doing so, I went to reboot and it hangs while trying to apply iptables firewall settings. I try to enter interactive mode at boot by pressing "I", but it doesn't work.
I am using Fedora Core 3.
NOW WHAT?

win32sux · 09-05-2006, 01:20 PM

one thing you could do is boot your rescue cd, mount your / partition, and then remove the reference to iptables from the relevant startup file... if you have a startup script especially for iptables then just make it non-executable... sorry for not being able to be more specific, the thing is i don't have a clue about fedora... but i'm hoping this might at least push you in the right direction...

PS: i took a look at this: http://wiki.linuxquestions.org/wiki/IptablesFedora

so it seems the file you'd want to make non-executable is /etc/init.d/iptables

benjithegreat98 · 09-05-2006, 02:56 PM

You can get into your setup without a boot cd. When the grub menu starts hit the key that will let you add additional arguements to the kernel. I believe the key is 'a'. You can then add the word 'single' to the line and you will enter into single mode.

If you were booting into graphical mode go to /etc/rc5.d/ after you successfully boot into single user mode. Look for a file with the word 'iptables' in it. It should be something like S92iptables. Rename the file to K92iptables (using whatever number is used in FC3).

Code:

mv S92iptables K92iptables

If you type 'exit' you should boot into run level 5 and then you can make changes to your firewall rules. Or you can just reboot. Don't forget to rename the file back to what it used to be when you are done.

medic215 · 09-05-2006, 02:58 PM

Thank you very much for your reply. Whil waiting fro a reply on here, pulling my hair out, and searching the internet, I let it sit in the spot where it stalls. After about 1/2 hr it booted on it's own. Dunno why it took so long. When I go through webmin to make changes to Iptables, it allies new configurations in a normal amount of time. Thank you again, I will read through that site anywy to see if it can shed some light on this issue.