Top 10 Linux Commands for Monitoring and Troubleshooting Your System
1. Disk and File System Checks Objective: Monitor disk usage and verify file system configurations. Commands and Steps: View Disk Space Usage: Command: df -h Verify the available and used space in a human-readable format. Check File System Configurations: Command: cat /etc/fstab Ensure all required file systems are configured to mount at boot. Verify Permissions of fstab File: Command: ls -ld /etc/fstab Check permissions to ensure security and avoid unauthorized changes. 2. Network Configuration and Connectivity Objective: Validate DNS configurations and network routes. Commands and Steps: Verify DNS Resolver Permissions: Command: ls -ld /etc/resolv.conf Display DNS Server Configuration: Command: cat /etc/resolv.conf Check Kernel Routing Table: Command: ip route Confirm active routes for ...