find -not -newermt "nov 01, 2015" -exec mv {} /tmp \;

-not -newermt -> specifies the modification time of the file must be older (hence the -not)

Use netstat:

netstat -tulpn

Or use ss:

TCP ports:

ss -tan

UDP ports:

ss -uan

where the last n is for nummeric.

Add the p to show which process is using the port