[sf-lug] internet interlopers

[Alex Kleider]

first thanks to all who have taken the time to help me in the past: most recently Jim Stockford and Michael Paoli.

I've done some configuring so that inspite of having a dynamically allocated IP address, I'm able from any internet connection to ssh to my linux box which sits behind a DSL modem and a Linksys Router. The problem is that others have established connections and although I haven't been aware of any harm being done, clearly these connections shouldn't be there. 
The process on my computer (host name is belmont) that seems to be making the connection (port) is called linx so I assume this is the kernel itself. If this is true my solution can't be to turn off the process!
Has anyone any ideas what I should do?
I include the relevant output of the netstat command run with and without -np.
(this is how I discovered the interlopers!)     thanks in advance...
.......... $ netstat
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 belmont:1027            irc3.easynews.com:6665  ESTABLISHED
tcp        0      0 belmont:3377            irc3.easynews.com:6665  ESTABLISHED
tcp        0      0 belmont:3725            yui.desync.com:ircd     ESTABLISHED
tcp        0      1 belmont:2533            64.161.255.201:6668     SYN_SENT   
tcp        0      0 belmont:4609            irc3.easynews.com:6665  ESTABLISHED
tcp        0      0 belmont:2871            yui.desync.com:ircd     ESTABLISHED

...... # netstat -pn 
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name   
tcp        0      0 192.168.1.152:1027      69.16.172.40:6665       ESTABLISHED9870/linux          
tcp        0      1 192.168.1.152:2376      194.109.20.90:6667      SYN_SENT   9870/linux          
tcp        0      0 192.168.1.152:3377      69.16.172.40:6665       ESTABLISHED18509/linux         
tcp        0      0 192.168.1.152:3725      64.157.15.117:6667      ESTABLISHED9870/linux          
tcp        0      0 192.168.1.152:4609      69.16.172.40:6665       ESTABLISHED18509/linux         
tcp        0      0 192.168.1.152:2871      64.157.15.117:6667      ESTABLISHED18509/linux