System & Network Administration Overview PDF

System & Network Administration Overview Le Hai Duong, PhD. ([email protected])  Contact Info. ❏ Instructor: Hai-Duong Le, PhD ❏ Email: [email protected] Textbook ❏ Nemeth, Evi, et al. "UNIX and Linux system administration handbook." USENIX Open Access Policy 59 (20...

System & Network Administration Overview Le Hai Duong, PhD. ([email protected])  Contact Info. ❏ Instructor: Hai-Duong Le, PhD ❏ Email: [email protected] Textbook ❏ Nemeth, Evi, et al. "UNIX and Linux system administration handbook." USENIX Open Access Policy 59 (2018). Assessment ❏ Quizzes, assignments, & attendant 10% ❏ Labs 20% ❏ Mid-term 30% ❏ Final exam 40%  Topics 1. Overview and lab setup (virtualization and containers) 2. Booting and system management daemons 3. Access control 4. Process control 5. The filesystem 6. Software installation and management 7. Scripting and the Shell 8. User management 9. TCP/IP networking 10. Physical networking 11. IP routing 12. DNS 13. Web hosting 14. Configuration management 15. Security 16. Monitoring 17. Performance analysis 18. Data center basics Essential duties of a system administrator ❏ Controlling access ❏ Maintain local documentation ❏ Adding hardware ❏ Vigilantly monitoring ❏ Automating tasks ❏ Tuning performance ❏ Overseeing backups ❏ Developing site policies ❏ Installing and upgrading software ❏ Work with vendors ❏ Monitoring ❏ Fire fighting ❏ Troubleshooting Specialization and adjacent disciplines ❏ DevOps ❏ Database administrators ❏ Site reliability engineers ❏ Network operation center (NOC) ❏ Security operation engineers engineers ❏ Network administrators ❏ Data center technicians ❏ Architects  Linux distributions ❏ Comprise of ❏ Linux kernel ❏ packages → commands you can run on the system ❏ Dominant by the Debian and Red Hat lineages ❏ Major distributions include ❏ relatively painless installation procedure ❏ a desktop environment ❏ package management  Choose a distribution ❏ Is this distribution going to be around in five years? ❏ Is this distribution going to stay on top of the latest security patches? ❏ Does this distribution have an active community and sufficient documentation? ❏ If I have problems, will the vendor talk to me, and how much will that cost? The manual pages $ man section title $ man title Search for manual man -k keyword Print list of man pages containing keyword (similar to apropos) Update keywords database with mandb (Ubuntu) or makewhatis (RHEL)