Linux System Administration and Configuration

After installation, Linux requires configuration and systems administration. Corporate systems need monitoring, backups, updates, as well as system and user management. Ubuntu (apt), CentOS, Fedora and Red Hat (rpm/YUM) Linux server administration and desktop systems adminstration are covered in this tutorial.

This tutorial covers managing, modifying and monitoring a Linux based computer.

• Monitor the system:
  • # Monitor the system.
  • # Process management.
• # Memory Usage.
• # Filesystems and Storage Devices.
• # Mounting CD's, Floppies etc.
• # Mounting Network Drives: SMB, NFS
• System Users:
  • # User Info.
  • # User Greetings.
  • # Creating a new system user account.
  • # Restrict user.
  • # SELinux security policies.
  • # Operating as root (System Administrator).
• System Updates:
  • Ubuntu / Debian package management:
    • # APT/dpkg: Adding, updating software.
  • Red Hat / Fedora / CentOS / Suse package management:
    • # RPM: Adding, updating software.
    • # Red Hat automated system update: up2date.
    • # YUM/YUMEX: Adding, updating RPM's.
  • # RDIST: Remotely distributing and installing software/files
• System Logs:
  • # System log files.
  • # logrotate - Rotate log files.
• Finding files:
  • # FIND: Using the find command
  • # Finding files on the system.
• # File Information/Status/Ownership/Security.
• Scheduling tasks:
  • # CRON: Scheduling a task
  • # AT: Scheduling a task
• # Managing Time
• # "You have new mail."
• # Text Terminal Configuration
• # System Hardware Information.
• # PERL Administration/Maintenance
• # File compression/decompression utilities
• # Linux File Packing/Archiving:
  • # Linux Backups using TAR (Tape Archive)
• # System Fixes
• # Admin Scripts
• # Links

Refer to http://www.yolinux.com