Re: TELNET

[Colin Watson <cjwatson@debian.org>]

On Fri, Mar 14, 2003 at 12:09:59PM -0800, Alvin Oga wrote:
> On Fri, 14 Mar 2003, Joao Paulo wrote:
> > telnet is also very good (but for other things).
> >     telnet host 25
> >     telnet host 21
> >     ...
> 
> but your firewall should also block "the wrong protocols"
> connecting to the wrong/right ports

Er, exactly how can any correct firewall stop someone using telnet from
speaking the protocol manually? 'telnet host 25' rarely means actually
running a telnetd on port 25, it means speaking SMTP by hand.

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]