disable telnet?

[sde]

i'm running debian ..

how do i disable telnet ?

i'm trying to disable telnet, and set ssh to listen on port 23.

i set /etc/ssh/sshd_config to port 23,
and i set /etc/ssh/ssh_config to host on port 23,

but it still accepts requests on port 22.

[joe_bruin]

on a system with a standard inetd, simply comment out the line for telnet in /etc/inetd.conf, and tell inetd to restart by sending it a SIGHUP.

on systems using the messed-up xinetd, you'll have to edit the config files at /etc/xinetd.d/

assuming you're using openssh, set in /etc/ssh/sshd_config Port to 23 and a SIGHUP to sshd should do it.

a good system will have a man page for each important config file (ex: sshd_config(5))

what do you expect to gain by putting sshd on port 23?

[sde]

thanks joe, .. i setup ssh on port 23 so i can access my box from behind a work firewall... don't know why exactly they have 23 open, .. but 22 is not.

[sde]

i'm still confused on the SIGHUP thing, .. [SHELL]# ps aux |grep inetd[/SHELL] that gave me the pid, then i did [SHELL]# kill -9 pid[/SHELL]that killed the process, .. a couple seconds later it restarted itself and the port was still set to 22.

i restarted the system ( init 6 ) , then port 23 was enabled. what did i do wrong? i would like to understand how i should have done it without rebooting.

Just guessing, -9 is SIGKILL, try -1

[joe_bruin]

kill -HUP <inetd pid>