Open (external) port after (default) install?

[Elliot F.]

Port 123 is NTP.  It's probably trying to update the time.  Nothing too
harmful.  Try disabling ntp and watching again.

For those of you who do not like/want certain daemons started, you can:

	sudo update-rc.d -f portmap remove

to stop the portmap daemon from starting.  This will remove the symbolic
links in the rc directories.

On Thu, 2004-10-07 at 22:13 -0700, Darren Critchley wrote:
> 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
> 
> 
>