running iptables commands gives me input/output error

ziba · 05-08-2009, 11:44 AM

Hi,

I am new in linux. I was connected to my linux remotely.Then I ran these commands remotely to remove the firewall
# service iptables save
# service iptables stop
# chkconfig iptables off

and then all of my problem got started. I cannot even run the ls command , I get input/output error.

I ran
# service iptables start
# chkconfig iptables on

to get beck to the state I was before but nothing changes.

Please help me.

rweaver · 05-08-2009, 03:53 PM

Sounds more like you've either been root kitted or you've got separate issues, there is nothing iptables does that should effect "ls" in anyway.

ziba · 05-09-2009, 09:12 AM

Thanks rweaver,

I ran those commands remotely with a usrname and root password.

But now I cannot login to my computer even locally. Thats why I get input/output error when I try to run any commands in that computer remotely. But I still can ssh to that computer with my username however I cannot do any thing like run ls or cd commands. Do you know why my user name is disabled by those commands in iptables?

chrism01 · 05-11-2009, 01:32 AM

Show the exact error you get when running 'ls'. (Both as root and as yourself)
Also, show 'iptables -L' (as root)

ziba · 05-11-2009, 04:51 AM

Thanks guys,

It got solved. I think it was a Fedora bog. I asked someone to shut down the server for a while and then could login again. I used to get input/output error wether I was root or another user.