Friedrich Ewald My Personal Website

Show open ports on the linux shell

If you want to show all the currently open ports on linux, just use the following command:

netstat -lntu
This gives you the following output:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0    *               LISTEN
tcp        0      0  *               LISTEN
tcp6       0      0 :::22                   :::*                    LISTEN
udp        0      0 *
udp        0      0    *
udp        0      0 *
udp6       0      0 :::57063                :::*
udp6       0      0 :::42147                :::*
Found here

About the author

is an experienced Software Engineer with a Master's degree in Computer Science. He started this website in late 2015, mostly as a digital business card. He is interested in Go, Python, Ruby, SQL- and NoSQL-databases, machine learning and AI and is experienced in building scalable, distributed systems and micro-services at multiple larger and smaller companies.