Описание: 1. Introduction and Preparations
2. Unix and POSIX in a Few Words
3. Software management
4. Network (Base) and Firewall
5. User Management and Permissions
6. Domain Name System (DNS)
7. Secure shell (SSH)
8. Task Scheduling
9. Web Server Part 1: Apache/Nginx Basics
10. Traffic Encryption: SSL/TLS
11. Databases
12. Email Basics
13. Web Server Part 2: Advanced Apache/Nginx
14. Advanced Email
15. Backup and Monitoring
16. Taking it Further
