how to check if local firewall is enabled

egshane · 10-27-2009, 10:57 AM

red hat enterprise as 4 update 4

hello guys, newest of the newbs here. how do i check the status of a local firewall?

pljvaldez · 10-27-2009, 11:04 AM

iptables -L

egshane · 10-27-2009, 11:08 AM

thanks for the quick response...that was awesome. i ran that command, and i get command not found...would that indicate that i don't have a local firewall setup?

egshane · 10-27-2009, 11:13 AM

Quote:

Originally Posted by egshane

thanks for the quick response...that was awesome. i ran that command, and i get command not found...would that indicate that i don't have a local firewall setup?

i also tried /sbin/iptabls -L...that time i got no such file or directory

pljvaldez · 10-27-2009, 11:50 AM

it should be /sbin/iptables -L. You may need to be root or have sudo access.

Linville79 · 10-27-2009, 12:17 PM

Just use (as root/superuser):

Code:

#service iptables status

That's all you need in RHEL.

You can also use:

Code:

#service iptables stop

and

Code:

#service iptables start

To turn it off an on.

If you want to turn it off completely, you'll want to use the chkconfig command.

Code:

#chkconfig iptables off

or

Code:

#chkconfig iptables on

Which will make the changes for runlevels 2, 3, 4 and 5.

Code:

#chkconfig --list

Will let you look at what services are set to be off and on based on runlevels.

Good luck!

Wim Sturkenboom · 10-27-2009, 12:39 PM

In Ubuntu:

Code:

sudo iptables -L

It should give you quite a long list. To speed it up (no DNS lookups), you can add the -n option

egshane · 10-30-2009, 09:15 AM

awesome guys...thanks. the service iptables status gave me what i needed. wow...you guys are kickass.