Using netstat command

Netstat is a simple and great network utility.

Here are a few useful usage examples:

What Network Services are Running?

netstat -atup


netstat -ap | grep LISTEN | less

This can be helpful to determine the services running.

Need stats on dropped UDP packets?

netstat -s -u

or TCP

netstat -s -t

or summary of everything

netstat -s

or looking for error rates on the interface?

netstat -i

Listening interfaces?

netstat -l