Open Ports
Smoot Carl-Mitchell
smoot at tic.com
Mon Feb 9 14:56:17 UTC 2009
On Mon, 2009-02-09 at 14:20 +0000, John wrote:
> However, every time I start Thunderbird, it reports "Could not connect
> to server localhost; the connection was refused". (When I used to use
> the identical configuration on a Windoze XP machine, it worked.)
This indicates Thunderbird is trying to connect to itself (e.g.
localhost should be mapped to IP address 127.0.0.1 which is the loopback
interface). I am puzzled why the WebMail add in is trying to make a
connection to localhost and not to a remote email service. Sounds like
something is misconfigured in Thunderbird.
> My main question at the moment is how can I determine which ports are
> open on my laptop (I have not configured a firewall on this machine!)?
If you do not have a firewall, then any port is open, but you need a
service on the port to connect to. You can run
netstat --tcp --listen
to determine which services you have running on your laptop.
--
Smoot Carl-Mitchell
Computer Systems and
Network Consultant
smoot at tic.com
+1 480 922 7313
cell: +1 602 421 9005
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