Table of contents: Table of contents: 1. Introduction to system administration; 2. The Unix way; 3. Essential administrative tools and techniques; 4. Startup and shutdown; 5. TCP/IP networking; 6. Managing users and groups; 7. Security; 8. Managing network services; 9. Electronic mail; 10. Filesystems and disks; 11. Backup and restore; 12. Serial lines and devices; 13. Printers and the spooling subsystem; 14. Automating administrative tasks;...