System Configuration: Logging, System Time, Batch Jobs, and Users

1. System Logging

1.1 Checking your Log Setup

1.2 Searching and Monitoring Logs

1.3 Logfile Rotation

1.4 Journal Maintenance

1.5 A Closer Look at System Logging

2. The Structure of /etc

3. User Management Files

3.1 The /etc/passwd File

3.2 Special Users

3.3 The /etc/shadow File

3.4 Manipulating Users and Passwords

3.5 Working with Groups

4. getty and login

5. Setting the Time

5.1 Kernel Time Representation and Time Zones

5.2 Network Time

6. Scheduling Recurring Tasks with cron and Timer Units

6.1 Installing Crontab Files

6.2 System Crontab Files

6.3 Timer Units

6.4 cron vs. Timer Units

7. Scheduling One-Time Tasks with at

7.1 Timer Unit Equivalents

8. Timer Units Running as Regular Users

9. User Access Topics

9.1 User IDs and User Switching

9.2 Process Ownership, Effective UID, Real UID, and Saved UID

9.3 User Identification, Authentication, and Authorization

9.4 Using Libraries for User Information

10. Pluggable Authentication Modules

10.1 PAM Configuration

10.2 Tips on PAM Configuration Syntax

10.3 PAM and Passwords

11. Looking Forward