Dear friends,

On one of my proxy machine, there runs a firewall script written by my senior. Now I am trying to replace that firewall script with one of my own. I have got one, i name it testing.sh.

so i run the script ./testing.sh

it runs, people can surf normally. I thought it work, but after a few minutes, no one can surf anymore. So I have to do service iptables restart to reload the original firewall written by my senior.

My problem here is why my script only work for few minutes and never work after that. I am sure the script is ok, because I was able to run things smoothly after I run it, it only stop working after say 5 mins.

And everytime if I service iptables restart and it reload the original firewall script, everything work again...
So basiclly what I am saying is, my script works, it only works for say 5 mins...anyone know what is actually wrong?

there seems to be nothing wrong in my script...but don't know why it never work long...

pls help me...thanks for taking time reading my thread...

Regards
Y

check after 5 min your iptables rules iptables -L

Check crontabs for scripts that reload iptables?

it is very likely that some other scripts get exectued and replaced your rule. Like cron job.

how did it go with this, Niceman2005??

was it a cron thing?? state table issue?? ghost in the machine??

Hi!

haha sorry I am still lookin at it...just now I tried again. I checked the cron, nothing to reload the fw script....I can't figure out what is wrong....I loaded my own fw script, it works for say 15mins then stop working again.......this problem is really weird....

do the rules change?? this sounds similar to this thread BTW:

http://www.linuxquestions.org/questi....php?p=2325026