[NTLUG:Discuss] SSH

[Alton R. Pouncey, II]

On Fri, 2002-01-18 at 17:57, Matt Caldwell wrote:
> On Friday 18 January 2002 05:47 pm, you wrote:
> > At 04:23 PM 1/18/2002 -0600, Matt Caldwell wrote:
> > >I have installed the version of SSH that came with the Mandrake 8.1
> > >install.  I am trying to access my box at home through work.  I have set
> > >/etc/hosts.deny to ALL:ALL, and then /etc/hosts.allow to include the
> > >domain of my company.  Now, my company has a Cisco PIX firewall and will
> > >not let my PC connect to my box.  Does anyone know through what port my
> > >BOX would be sending data back to my PC at work??  I do use PuTTY, and I
> > >can ping my box, but I get a network error when I try to connect with
> > > PuTTY.
> >
> > port scan your box with something like superscan (founstone.com) or nmap
> > (insecure.org) and see if port 22 is open.
> >
> > from the Linux box can you ssh to localhost? or from anywhere else?
> >
> > Install cygwin and run ssh -v to get more details of why it is failing (if
> > you are sure it is getting to the port)?
> >
> > ALso, the firewall at your work may block 22 outbound, not uncommon.  The
> > src port for the returning packets is more or less random.
> >
> > >Thank You,
> > >Matt Caldwell
> 
> Thanks, I just checked my services, and I was using port 22.  Port 22 is 
> blocked on the firewall.  So, I commented out Telnet and changed sshd to port 
> 23 in my /etc/services.  Is that all I need to do,, other than restart inetd?
> 			--Matt
> 
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
> 

Changing your /etc/services file won't help.  You need to edit your
/etc/ssh/sshd_config file and change the line that says:

Port 22 

to 

Port 23

Then restart the sshd service:

/etc/rc.d/init.d/sshd restart

-- 
Alton R. Pouncey, II
SCSA, SCNA, CCNA, CIW Associate
Director of Information Services
'print pack("H*","616c746f6e40747261696e6572732d722d75732e636f6d"), $/'
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