How do you look for open ports on a network?

Answer:
For both Windows and Linux, the command is 'netstat'. To find out if you have any open ports (all PCs do to some extent), you can do a 'netstat -na' and look for any lines that have the word "LISTEN" in the last column.

In Linux, you can do a 'netstat -na | grep LISTEN' to only view those ports, disregarding the others.
First answer by Kb7qdi. Last edit by Kb7qdi. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].