Why s port 111 still open?

[Lisi <lisi.reisz@gmail.com>]

I was under the impression that I had cleansed my system of rpcbind after the 
security discussion on this list.  Today, because I was trying to remove 
Samba, I ran nmap to see what was going on.  Here is the "conversation" I had 
with Tux just now:

<quote>
lisi@Tux:~$ nmap Tux

Starting Nmap 4.62 ( http://nmap.org ) at 2011-08-29 10:31 BST
Interesting ports on Tux (192.168.0.2):
Not shown: 1711 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
80/tcp   open  http
111/tcp  open  rpcbind
6881/tcp open  bittorrent-tracker

Nmap done: 1 IP address (1 host up) scanned in 0.126 seconds
lisi@Tux:~$ which rpcbind
lisi@Tux:~$ whereis rpcbind
rpcbind:
lisi@Tux:~$ locate rpcbind
lisi@Tux:~$ find rpcbind
find: `rpcbind': No such file or directory
lisi@Tux:~$
</quote>

Do I need to do anything about it, or should I just take no notice?

Thanks,
Lisi