Device Management
Reference for Linux device management: listing devices, inspecting hardware, managing drivers, debugging device issues, and understanding /dev, /sys, and /proc.
Find the Process Listening on a Port
Identify which process is bound to a specific TCP or UDP port on Linux.
Force Delete a Stuck Kubernetes Pod
Remove a pod that remains in Terminating state when graceful deletion fails.
Kubernetes Debugging Tools & Commands
A practical reference for debugging Kubernetes workloads: kubectl debug, ephemeral containers, logging patterns, networking diagnostics, CrashLoopBackOff, OOMKilled, and essential third-party tools like stern, k9s, and kubectx.
Linux Networking
Reference for Linux networking: interface configuration, routing, DNS, firewalls (UFW & iptables), diagnostics, and kernel-level network tuning.
Logging & Log Management
Reference for Linux logging: journald, syslog, logrotate, common log locations, and log analysis commands.
Process Management
Reference for Linux process management: listing, monitoring, signaling, priorities, systemd service management, and resource analysis tools.