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Old 04-27-2004, 02:58 PM   #1
Registered: Apr 2004
Location: Paris
Posts: 44

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SSH port 22, how open it?

Hi everyone,
i have a router modem and a mandrake distrib and i just want to know how open the ssh port (22)?
modem : Alcatel Speedtouch Pro modem.
Old 04-27-2004, 03:24 PM   #2
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Registered: Jul 2003
Location: Kalamazoo, MI
Distribution: Slackware 10.2
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Basically you want to have sshd running as a daemon defaults to port 22. I'm assuming you have a firewall you want to put a rule in it with "iptables" like:

iptables -I INPUT -i eth0 -p tcp --dport 22 -j ACCEPT

This is a fairly liberal rule so you may want to add some other conditions like "-s <IP>" and put whatever IP or IP range you want to give access to.

If your router/modem does the firewalling then you will want to create a similar rule on your modem...but you should consult the documentation for your particular modem on the right way to do that

Last edited by xatmes; 04-27-2004 at 03:26 PM.
Old 04-27-2004, 03:25 PM   #3
Registered: Aug 2003
Location: Dominica
Distribution: RedHat, FC1, FC3, FC4
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Your first step would be to ensure that the SSHD service is running. You can either check your list of running processes or run ps aux | grep sshd.

To test if the port 22 is open you can run nmap -p 22 localhost

If it is open and you can't get through to it from the outside....then your router/firewall may be blocking access...configurations may need to be tweaked.

Let i kno...
Old 04-27-2004, 05:42 PM   #4
Registered: Apr 2004
Location: Paris
Posts: 44

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thanks foor your information,
i don't have any firewall, so i think it's easy but i didn't kno the command.
thanks ;-)


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