Checklists

Curl HTTP Debugging Tool Checklist for System Admins

Curl HTTP Debugging Tool Checklist for System Admins curl is one of the most important...

Dig DNS Investigation Tool Checklist for System Admins

Dig DNS Investigation Tool Checklist for System Admins dig helps system admins inspect DNS records...

SS Socket and Listening Port Inspection Checklist

SS Socket and Listening Port Inspection Checklist ss shows which services are listening on which...

Journalctl Service Log Investigation Checklist

Journalctl Service Log Investigation Checklist journalctl is the main tool for reading systemd service logs....

Top and Htop Process Triage Checklist

Top and Htop Process Triage Checklist top and htop help system admins see what is...

DF and DU Disk Usage Investigation Checklist

DF and DU Disk Usage Investigation Checklist df and du are must-have tools for understanding...

Grep Awk Sort Uniq Log Filtering Checklist

Grep Awk Sort Uniq Log Filtering Checklist grep, awk, sort and uniq turn large logs...

Rsync Safe File Transfer and Backup Checklist

Rsync Safe File Transfer and Backup Checklist rsync is a powerful tool for copying files...

OpenSSL S Client SSL Debugging Checklist

OpenSSL S Client SSL Debugging Checklist openssl s_client helps system admins inspect TLS and SSL...

Tcpdump Basic Packet Capture Checklist for VPS Troubleshooting

Tcpdump Basic Packet Capture Checklist for VPS Troubleshooting tcpdump lets system admins observe network packets...