3.11. /proc/tty/ .............................................................................854. Using the sysctl Command ..................................................................865. Additional Resources ............................................................................875.1. Installed Documentation .............................................................875.2. Useful Websites .........................................................................876. Users and Groups .........................................................................................891. User and Group Management Tools .......................................................892. Standard Users .....................................................................................903. Standard Groups ..................................................................................914. User Private Groups ..............................................................................934.1. Group Directories .......................................................................945. Shadow Passwords ...............................................................................956. Additional Resources ............................................................................956.1. Installed Documentation .............................................................956.2. Related Books ...........................................................................967. The X Window System ..................................................................................991. The X11R6.8 Release ...........................................................................992. Desktop Environments and Window Managers .....................................1002.1. Desktop Environments ..............................................................1002.2. Window Managers ...................................................................1013. X Server Configuration Files ................................................................1013.1. xorg.conf ...............................................................................1024. Fonts ..................................................................................................1084.1. Fontconfig ................................................................................1094.2. Core X Font System .................................................................1105. Runlevels and X ..................................................................................1125.1. Runlevel 3 ...............................................................................1125.2. Runlevel 5 ...............................................................................1136. Additional Resources ..........................................................................1146.1. Installed Documentation ...........................................................1146.2. Useful Websites .......................................................................1146.3. Related Books .........................................................................115II. Network Services Reference ................................................................................1178. Network Interfaces ......................................................................................1191. Network Configuration Files .................................................................1192. Interface Configuration Files ................................................................1202.1. Ethernet Interfaces ...................................................................1202.2. IPsec Interfaces .......................................................................1222.3. Channel Bonding Interfaces ......................................................1242.4. Alias and Clone Files ................................................................1252.5. Dialup Interfaces ......................................................................1262.6. Other Interfaces .......................................................................1273. Interface Control Scripts ......................................................................1284. Network Function Files ........................................................................1295. Additional Resources ..........................................................................1305.1. Installed Documentation ...........................................................1309. Network File System (NFS) .........................................................................131Red Hat Enterprise Linux 4.5.0viii