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Fedora Draft Documentation

System Administrator's Reference Guide

A Reference Guide for Administrators of Fedora

Edition 20.0.1

Jaromír Hradílek

Red Hat Engineering Content Services

Douglas Silas

Red Hat Engineering Content Services

Martin Prpič

Red Hat Engineering Content Services

Stephen Wadeley

Red Hat Engineering Content Services

Legal Notice

Copyright © 2014 Red Hat, Inc. and others.
The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share Alike 3.0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available at The original authors of this document, and Red Hat, designate the Fedora Project as the "Attribution Party" for purposes of CC-BY-SA. In accordance with CC-BY-SA, if you distribute this document or an adaptation of it, you must provide the URL for the original version.
Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert, Section 4d of CC-BY-SA to the fullest extent permitted by applicable law.
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The System Administrator's Reference Guide provides reference material for Fedora 20, and is oriented towards system administrators with a basic understanding of the system. For information regarding the deployment, configuration, and administration of this system, refer to the Fedora System Administrator's Guide.

1. Document Conventions
1.1. Typographic Conventions
1.2. Pull-quote Conventions
1.3. Notes and Warnings
2. We Need Feedback!
1. Network Interfaces
1.1. Network Configuration Files
1.2. Interface Configuration Files
1.2.1. Ethernet Interfaces
1.2.2. Specific ifcfg Options for Linux on System z
1.2.3. Required ifcfg Options for Linux on System z
1.2.4. Alias and Clone Files
1.2.5. Dialup Interfaces
1.2.6. Other Interfaces
1.3. Interface Control Scripts
1.4. Network Function Files
1.5. Ethtool
1.6. Additional Resources
1.6.1. Installed Documentation
1.6.2. Useful Websites
2. The proc File System
2.1. A Virtual File System
2.1.1. Viewing Virtual Files
2.1.2. Changing Virtual Files
2.2. Top-level Files Within the proc File System
2.2.1. /proc/buddyinfo
2.2.2. /proc/cmdline
2.2.3. /proc/cpuinfo
2.2.4. /proc/crypto
2.2.5. /proc/devices
2.2.6. /proc/dma
2.2.7. /proc/execdomains
2.2.8. /proc/fb
2.2.9. /proc/filesystems
2.2.10. /proc/interrupts
2.2.11. /proc/iomem
2.2.12. /proc/ioports
2.2.13. /proc/kcore
2.2.14. /proc/kmsg
2.2.15. /proc/loadavg
2.2.16. /proc/locks
2.2.17. /proc/mdstat
2.2.18. /proc/meminfo
2.2.19. /proc/misc
2.2.20. /proc/modules
2.2.21. /proc/mounts
2.2.22. /proc/mtrr
2.2.23. /proc/partitions
2.2.24. /proc/slabinfo
2.2.25. /proc/stat
2.2.26. /proc/swaps
2.2.27. /proc/sysrq-trigger
2.2.28. /proc/uptime
2.2.29. /proc/version
2.3. Directories within /proc
2.3.1. Process Directories
2.3.2. /proc/bus/
2.3.3. /proc/bus/pci
2.3.4. /proc/driver/
2.3.5. /proc/fs
2.3.6. /proc/irq/
2.3.7. /proc/net/
2.3.8. /proc/scsi/
2.3.9. /proc/sys/
2.3.10. /proc/sysvipc/
2.3.11. /proc/tty/
2.3.12. /proc/PID/
2.4. Using the sysctl Command
2.5. Additional Resources
3. The sysconfig Directory
3.1. Files in the /etc/sysconfig/ Directory
3.1.1. /etc/sysconfig/arpwatch
3.1.2. /etc/sysconfig/authconfig
3.1.3. /etc/sysconfig/autofs
3.1.4. /etc/sysconfig/clock
3.1.5. /etc/sysconfig/dhcpd
3.1.6. /etc/sysconfig/firstboot
3.1.7. /etc/sysconfig/i18n
3.1.8. /etc/sysconfig/init
3.1.9. /etc/sysconfig/ip6tables-config
3.1.10. /etc/sysconfig/keyboard
3.1.11. /etc/sysconfig/ldap
3.1.12. /etc/sysconfig/named
3.1.13. /etc/sysconfig/network
3.1.14. /etc/sysconfig/ntpd
3.1.15. /etc/sysconfig/quagga
3.1.16. /etc/sysconfig/radvd
3.1.17. /etc/sysconfig/samba
3.1.18. /etc/sysconfig/saslauthd
3.1.19. /etc/sysconfig/selinux
3.1.20. /etc/sysconfig/sendmail
3.1.21. /etc/sysconfig/spamassassin
3.1.22. /etc/sysconfig/squid
3.1.23. /etc/sysconfig/system-config-users
3.1.24. /etc/sysconfig/vncservers
3.1.25. /etc/sysconfig/xinetd
3.2. Directories in the /etc/sysconfig/ Directory
3.3. Additional Resources
A. Revision History