Open (external) port after (default) install?

Darren Critchley darrenc at telus.net
Fri Oct 8 05:13:46 UTC 2004


Jaime wrote:

>Hi all.
>
>There was a thread last week all about whether Ubuntu needs a firewall,
>and a number of people mentioned that it wasn't necessary because no
>(external) ports are open after a standard install.
>
>I've just done a standard install and nmap tells me that port 111 is
>open. Also, "sudo netstat -nltp | grep -i 111" tells me that it's due to
>portmap, which I _think_ is dragged in by fam.
>
>Just thought I'd mention it.
>
>  
>
Don't know if you have a firewall in front of Ubuntu that logs 
connections, but if you do, watch what happens when ubuntu boots up:
I have done two installation on two different boxes with two different 
builds of Ubuntu, and find that on boot, it likes to connect to :
216.154.195.60 on port 123 OR
213.84.180.73 on port 123
The first ip address resolves to http://forum.spamcop.net/ and the 
second one resolves to jansen.cx
Why is ubuntu logging into port 123 of these addresses on boot?
Now, if we are reporting things to spamcop, fine, but we should be 
informed, I do not like distros that report things without my knowledge.

Darren






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