closing open ports

[patd@dahiroc.net]

i just did an nmap to a machine i'm servicing and i have 2 open ports 
that i cannot account for.  they are:
	Port    State       Protocol  Service
	781     open        tcp        hp-collector
	779     open        udp        unknown

looking at /etc/services 779/udp is for moira_ureg.  what the $%^& is
?moira? and why is it 'unknown' instead of moira_ureg?

tcp/781 is not even in my /etc/services.  what is this hp-collector?

in any case they are up and i don't know what they're for.  i'm
guessing they are not important. how do i close these open ports and 
how do i found what turned them on?

thanks


-- 
^X^C
q
quit
:q
^C
end
x
exit
ZZ
^D
?
help
shit
.