[NTLUG:Discuss] port 22 "filtered"
MadHat
madhat at unspecific.com
Fri Mar 12 12:40:50 CST 2004
On Mar 12, 2004, at 6:32 PM, terry wrote:
> cannot ssh to a (Fedora core1) PC, even though sshd IS running on that
> machine, and 'ssh localhost' DOES work [on that target machine].
>
> nmap (from outside) reports port 22 is "filtered"
> (I have to run nmap with -P0 option)
> ie. nmap -P0 -p22 **.***.**.***
> Port State Service
> 22/tcp filtered ssh
>
> So, how do I un-filter port 22 ?
look to see if iptables is running.
as root, you can do
iptables -l
Or look at the file /etc/sysconfig/iptables
You can also just shut it down and test
/etc/rc.d/init.d/iptables stop
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