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Part III. System Configuration

Part of a system administrator's job is configuring the system for various tasks, types of users, and hardware configurations. This section explains how to configure a Red Hat Enterprise Linux system.

Table of Contents

13. Date and Time Configuration
13.1. Date/Time Properties Tool
13.1.1. Date and Time Properties
13.1.2. Network Time Protocol Properties
13.1.3. Time Zone Properties
13.2. Command Line Configuration
13.2.1. Date and Time Setup
13.2.2. Network Time Protocol Setup
14. Keyboard Configuration
14.1. Changing the Keyboard Layout
14.2. Adding the Keyboard Layout Indicator
14.3. Setting Up a Typing Break
15. Users and Groups
15.1. User and Group Configuration
15.1.1. Adding a New User
15.1.2. Adding a New Group
15.1.3. Modifying Group Properties
15.2. User and Group Management Tools
15.2.1. Command Line Configuration
15.2.2. Explaining the Process
15.3. Standard Users
15.4. Standard Groups
15.5. User Private Groups
15.5.1. Group Directories
15.6. Shadow Passwords
15.7. Additional Resources
15.7.1. Installed Documentation
16. Automated Tasks
16.1. Cron and Anacron
16.1.1. Starting and Stopping the Service
16.1.2. Configuring Anacron Jobs
16.1.3. Configuring Cron Jobs
16.1.4. Controlling Access to Cron
16.1.5. Black/White Listing of Cron Jobs
16.2. At and Batch
16.2.1. Configuring At Jobs
16.2.2. Configuring Batch Jobs
16.2.3. Viewing Pending Jobs
16.2.4. Additional Command Line Options
16.2.5. Controlling Access to At and Batch
16.2.6. Starting and Stopping the Service
16.3. Additional Resources
16.3.1. Installed Documentation
17. Log Files
17.1. Configuring rsyslog
17.1.1. Modules
17.1.2. Global Directives
17.1.3. Rules
17.1.4. Templates
17.1.5. Filter Conditions
17.1.6. Output Channels
17.2. rsyslog Performance
17.3. Locating Log Files
17.3.1. Configuring logrotate
17.4. Viewing Log Files
17.5. Adding a Log File
17.6. Monitoring Log Files
17.7. Additional Resources
17.7.1. Installed Documentation
17.7.2. Useful Websites
18. The sysconfig Directory
18.1. Files in the /etc/sysconfig/ Directory
18.1.1. /etc/sysconfig/arpwatch
18.1.2. /etc/sysconfig/authconfig
18.1.3. /etc/sysconfig/autofs
18.1.4. /etc/sysconfig/clock
18.1.5. /etc/sysconfig/dhcpd
18.1.6. /etc/sysconfig/firstboot
18.1.7. /etc/sysconfig/i18n
18.1.8. /etc/sysconfig/init
18.1.9. /etc/sysconfig/ip6tables-config
18.1.10. /etc/sysconfig/keyboard
18.1.11. /etc/sysconfig/ldap
18.1.12. /etc/sysconfig/named
18.1.13. /etc/sysconfig/network
18.1.14. /etc/sysconfig/ntpd
18.1.15. /etc/sysconfig/quagga
18.1.16. /etc/sysconfig/radvd
18.1.17. /etc/sysconfig/samba
18.1.18. /etc/sysconfig/selinux
18.1.19. /etc/sysconfig/sendmail
18.1.20. /etc/sysconfig/spamassassin
18.1.21. /etc/sysconfig/squid
18.1.22. /etc/sysconfig/system-config-users
18.1.23. /etc/sysconfig/vncservers
18.1.24. /etc/sysconfig/xinetd
18.2. Directories in the /etc/sysconfig/ Directory
18.3. Additional Resources
18.3.1. Installed Documentation
19. The proc File System
19.1. A Virtual File System
19.1.1. Viewing Virtual Files
19.1.2. Changing Virtual Files
19.2. Top-level Files within the proc File System
19.2.1. /proc/buddyinfo
19.2.2. /proc/cmdline
19.2.3. /proc/cpuinfo
19.2.4. /proc/crypto
19.2.5. /proc/devices
19.2.6. /proc/dma
19.2.7. /proc/execdomains
19.2.8. /proc/fb
19.2.9. /proc/filesystems
19.2.10. /proc/interrupts
19.2.11. /proc/iomem
19.2.12. /proc/ioports
19.2.13. /proc/kcore
19.2.14. /proc/kmsg
19.2.15. /proc/loadavg
19.2.16. /proc/locks
19.2.17. /proc/mdstat
19.2.18. /proc/meminfo
19.2.19. /proc/misc
19.2.20. /proc/modules
19.2.21. /proc/mounts
19.2.22. /proc/mtrr
19.2.23. /proc/partitions
19.2.24. /proc/slabinfo
19.2.25. /proc/stat
19.2.26. /proc/swaps
19.2.27. /proc/sysrq-trigger
19.2.28. /proc/uptime
19.2.29. /proc/version
19.3. Directories within /proc/
19.3.1. Process Directories
19.3.2. /proc/bus/
19.3.3. /proc/bus/pci
19.3.4. /proc/driver/
19.3.5. /proc/fs
19.3.6. /proc/irq/
19.3.7. /proc/net/
19.3.8. /proc/scsi/
19.3.9. /proc/sys/
19.3.10. /proc/sysvipc/
19.3.11. /proc/tty/
19.3.12. /proc/PID/
19.4. Using the sysctl Command
19.5. References