[Techtalk] Shutting off X ports.
conor.daly at oceanfree.net
Thu Aug 28 19:20:23 EST 2003
On Wed, Aug 27, 2003 at 06:51:41AM -0700 or so it is rumoured hereabouts,
joe shindlin thought:
> Starting nmap V. 2.54BETA34 ( www.insecure.org/nmap/ )
> Interesting ports on localhost (127.0.0.1):
Note this is the loopback address: your machine's address for itself.
> (The 1550 ports scanned but not shown below are in
> state: closed)
> Port State Service
> 22/tcp open ssh
> 37/tcp open time
> 111/tcp open sunrpc
> 113/tcp open auth
> 515/tcp open printer
> 6000/tcp open X11
> Nmap run completed -- 1 IP address (1 host up) scanned
> in 0 seconds
This seems to say that the listed ports are open to your own machine.
This is fine since X uses network protocols within the machine as well as
externally. In fact, many *nix programs/services assume the existence of
a network. The loopback address exists to serve that assumption.
Conor Daly <conor.daly at oceanfree.net>
Domestic Sysadmin :-)
7:16pm up 11 days, 1:49, 1 user, load average: 0.00, 0.00, 0.00
7:15pm up 11 days, 1:49, 1 user, load average: 0.01, 0.08, 0.03
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