How do you close port 22 SSH?
 

I'm trying to secure my box and so far i've shut down ports in /etc/rc.inet1.conf that i don't use. When i run nmap it says port 22 ssh is open. How do i close this port other than a firewall rule? I looked in the /etc/rc.d directory, but can't figure out how you shut it off. I googled and read that it is to be disabled in /etc/rc.config, but i don't have an rc.config. I have a rc.inetd1.conf where i commented out the other ports i have no use for, but ssh isn't in there. There is a rc.sshd, but i don't see an option to disable it there either.

Why not just turn off sshd?

That's what i am trying to do! How do i do that?

Do you have a service configuration utility that comes with Slackware? (I'm not familiar with it.) It would be in the main menu under configuration/system settings or the like.

Or check /etc/services (if you have that file). Do a search for ssh and just put a # before that line. Reboot and that should do it. If you don't have that file, just look in /etc for something like serv*

I have a /etc/service file and commented out the ssh line, rebooted, but tcp port 22 is still open.

ftp 21/tcp #File Transfer [Control]
ftp 21/udp #File Transfer [Control]
#ssh 22/tcp #Secure Shell Login
ssh 22/udp #Secure Shell Login
telnet 23/tcp
telnet 23/udp

Did you try commenting out the UDP below it, as well?

To permanently end sshd
The first command ends it and the 2nd command sets the initialization file as not executable. When you reboot, sshd will not start.

Cool! The /etc/rc.d/rc.sshd stop & chmod -x /etc/rc.d/rc.sshd commands worked. Thanks