how to open 22.port at firewall

ce_emre · 10-11-2006, 09:33 AM

I want to use ssh command and i can't use this, so i want to open the 22.port at firewall(using console commands).Please help me.

Thanks...

musicman_ace · 10-11-2006, 10:19 AM

/sbin/iptables -A INPUT -p tcp --dport 22 -j ACCEPT

Thats from memory, but that should equate to the following:
Allow incoming
Protocol tcp
destination port 22 (ssh)
Accept

The iptables command should be in /sbin
A few more tips though, you can specify that the incoming ssh clients are from a particular subnet or single IP address to restrict it more. You could sent them to another target (-j) so that they get filtered with more rules. That rule will only exist until you reboot unless you save it.

sleepyEDB · 10-11-2006, 12:00 PM

What distro are you running? Are you sure the ssh daemon is installed and/or running?

As root, do a:

Code:

netstat -a | grep LISTEN

and see if ssh shows up in the list of running services.

If not,

Code:

cd /etc/init.d

and see if ssh is listed there.

If not, you'll have to install the openssh-server package. How you do that, depends on your distro...

sleepy