These 6 Linux Monitoring Tools Helped Me Uncover Every Problem on My Network
How-To Geek, Tuesday, June 16th, 2026
Six Linux command-line tools help diagnose network issues by revealing what happens beneath containers, VLANs, and DNS filtering.
The author describes six essential Linux tools for network troubleshooting. The ip command reveals interface addresses and routing tables; ping tests basic reachability; ss identifies which services listen on expected ports; nmap scans the network externally to verify exposed services; tcpdump captures raw traffic to diagnose DNS and routing problems; and bmon displays live bandwidth usage to find congestion.
Together these tools create a systematic debugging hierarchy that makes hidden network faults visible and easier to resolve.