Part III. System Configuration

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