Process Management

Linux is renowned for its robust process management capabilities. Here are key concepts:

  • Foreground/Background Tasks: Use & to run processes in the background.
  • Process Priority: Adjust with nice and renice commands.
  • Process Monitoring: Tools like top, htop, and ps provide real-time insights.
Process Management

Network Configuration

Mastering network settings is essential for advanced Linux users:

  • IP Address Management: Configure with ip, ifconfig, or nmcli.
  • Firewall Rules: Use iptables or firewalld for control.
  • SSH Optimization: Enhance security with key-based authentication and sshd_config tweaks.
Network Configuration

Scripting & Automation

Advanced scripting techniques can streamline workflows:

  • Shell Scripts: Leverage bash, zsh, or sh for automation.
  • cron Jobs: Schedule tasks with crontab for periodic execution.
  • Pipeline Mastery: Combine commands using | and redirection operators.
Shell Script

System Monitoring

Effective monitoring ensures system stability:

  • Log Analysis: Use journalctl, syslog, or dmesg.
  • Resource Tracking: Monitor CPU, memory, and disk with vmstat and iostat.
  • Real-Time Tools: iotop, nmon, and sar for detailed diagnostics.
System Monitoring

Advanced Permissions

Understanding file system permissions is critical:

  • ACLs (Access Control Lists): Use getfacl and setfacl for granular control.
  • SELinux/AppArmor: Implement mandatory access controls.
  • Chattr & Chmod: Secure files with chattr +i or adjust permissions via chmod.
Permissions Security

Containerization & Virtualization

Modern Linux systems rely on container tech:

  • Docker Mastery: Build and manage containers with docker run and docker compose.
  • LXC/LXD: Lightweight virtualization for resource isolation.
  • Kubernetes Basics: Orchestrate containers at scale with kubectl commands.
Containerization

For deeper exploration, check our guide on Linux Advanced Tips. 🚀