Deprecated linux commands

What are deprecated?

• ifconfig
• netstats
• route

What are the better options?

• ip
• ss
• lsof -iTCP

Basic usages

Command ip

Show / manipulate routing, network devices, interfaces and tunnels

• Show ip adresses: ip address or ip a
• Show network devices: ip link or ip l
• Show routing table entry: ip route or ip r
• Use color output: for example ip -c a, ip -c l

Command ss

Another utility to investigate sockets

• Show processes with listening TCP sockets: ss -plt
• For more infomation: man ss

Command lsof

Here is a good article about this command.

For finding processes running on port 8080:

lsof -iTCP:8080