Re: securing the system, stopping unnecessary services and closing open ports.
> ipp is CUPS, the network printing server, and you know whether you need
Now that you mention it... I also see cups listening on all devices:
$ sudo netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
udp 0 0 0.0.0.0:631 0.0.0.0:*
I need CUPS for printing, but my laptop is for sure not a printing server, so
no open port is necessary. cups.dconf contains this
# Only listen for connections from the local machine.
However, as you can see, it still opens the port on all interfaces. Is that a
bug, or is the configuration incorrect?