Index Symbols .fetchmailrc, Fetchmail Configuration Options global options, Global Options server options, Server Options user options, User Options .procmailrc, Procmail Configuration /boot/ directory, The /boot/ Directory /etc/named.conf (see BIND) /etc/pam.conf, PAM Configuration Files (see also PAM) /etc/pam.d, PAM Configuration Files (see also PAM) /etc/sysconfig/ directory (see sysconfig directory) /lib/security/, PAM Configuration Files (see also PAM) /lib64/security/, PAM Configuration Files (see also PAM) /proc/ directory (see proc file system) A aboot, Boot Loaders for Other Architectures access control, TCP Wrappers and xinetd AccessFileName Apache configuration directive, AccessFileName Action Apache configuration directive, Action AddDescription Apache configuration directive, AddDescription AddEncoding Apache configuration directive, AddEncoding AddHandler Apache configuration directive, AddHandler AddIcon Apache configuration directive, AddIcon AddIconByEncoding Apache configuration directive, AddIconByEncoding AddIconByType Apache configuration directive, AddIconByType AddLanguage Apache configuration directive, AddLanguage AddType Apache configuration directive, AddType Alias Apache configuration directive, Alias Allow Apache configuration directive, Allow AllowOverride Apache configuration directive, AllowOverride Apache (see Apache HTTP Server) Apache HTTP Server 1.3 migration to 2.0, Migrating Apache HTTP Server 1.3 Configuration Files 2.0 features of, Features of Apache HTTP Server 2.0 file system changes, File System Changes in Apache HTTP Server 2.0 migration from 1.3, Migrating Apache HTTP Server 1.3 Configuration Files MPM specific directives, MPM Specific Server-Pool Directives packaging changes, Packaging Changes in Apache HTTP Server 2.0 additional resources, Additional Resources related books, Related Books useful websites, Useful Websites configuration, Configuration Directives in httpd.conf introducing, Apache HTTP Server log files /var/log/httpd/error_log, Configuration Directives in httpd.conf combined log file format, LogFormat , CustomLog format of, LogFormat troubleshooting with, Configuration Directives in httpd.conf , KeepAlive using log analyzer tools with, HostnameLookups migration to 2.0, Migrating Apache HTTP Server 1.3 Configuration Files bind addresses and ports, Interface and Port Binding content negotiation, Content Negotiation directory indexing, Directory Indexing DSO Support, Dynamic Shared Object (DSO) Support error documents, Error Documents LDAP, The mod_authz_ldap Module logging, Logging module system changes, Modules and Apache HTTP Server 2.0 mod_auth_db, The mod_auth_dbm and mod_auth_db Modules mod_auth_dbm, The mod_auth_dbm and mod_auth_db Modules mod_include, The mod_include Module mod_perl, The mod_perl Module mod_proxy, The mod_proxy Module mod_ssl, The mod_ssl Module PHP, PHP removed directives, Other Global Environment Changes server-pool size, Server-Pool Size Regulation SuexecUserGroup, The suexec Module , SuexecUserGroup UserDir directive, UserDir Mapping virtual host configuration, Virtual Host Configuration Multi-Processing Modules activating worker MPM, Server-Pool Size Regulation prefork, Server-Pool Size Regulation worker, Server-Pool Size Regulation reloading, Starting and Stopping httpd restarting, Starting and Stopping httpd running without security, Virtual Hosts server status reports, Location starting, Starting and Stopping httpd stopping, Starting and Stopping httpd troubleshooting, Configuration Directives in httpd.conf Apache HTTP Server modules, Default Modules APXS Apache utility, Adding Modules Authentication Configuration Tool and LDAP, Configuring a System to Authenticate Using OpenLDAP , PAM and LDAP autofs, autofs (see also NFS) B Basic Input/Output System (see BIOS) Berkeley Internet Name Domain (see BIND) BIND additional resources, Additional Resources installed documentation, Installed Documentation useful websites, Useful Websites common mistakes, Common Mistakes to Avoid configuration files /etc/named.conf, BIND as a Nameserver , /etc/named.conf /var/named/ directory, BIND as a Nameserver zone files, Zone Files configuration of reverse name resolution, Reverse Name Resolution Zone Files zone file directives, Zone File Directives zone file examples, Example Zone File zone file resource records, Zone File Resource Records zone statements sample, Sample zone Statements features, Advanced Features of BIND DNS enhancements, DNS Protocol Enhancements IPv6, IP version 6 multiple views, Multiple Views security, Security introducing, Berkeley Internet Name Domain (BIND) , Introduction to DNS named daemon, BIND as a Nameserver nameserver definition of, Introduction to DNS nameserver types caching-only, Nameserver Types forwarding, Nameserver Types master, Nameserver Types slave, Nameserver Types rndc program, Using rndc /etc/rndc.conf, Configuring /etc/rndc.conf command line options, Command Line Options configuring keys, Configuring /etc/rndc.conf configuring named to use, Configuring /etc/named.conf root nameserver definition of, Introduction to DNS zones definition of, Nameserver Zones bind additional resources related books, Related Books BIOS definition of, The BIOS (see also boot process) block devices, /proc/devices (see also /proc/devices) definition of, /proc/devices boot loaders, GRUB (see also GRUB) definition of, The GRUB Boot Loader types of ELILO, Boot Loaders and System Architecture GRUB, Boot Loaders and System Architecture OS/400, Boot Loaders and System Architecture YABOOT, Boot Loaders and System Architecture z/IPL, Boot Loaders and System Architecture boot process, Boot Process, Init, and Shutdown , A Detailed Look at the Boot Process (see also boot loaders) chain loading, GRUB and the x86 Boot Process direct loading, GRUB and the x86 Boot Process for x86, A Detailed Look at the Boot Process stages of, The Boot Process , A Detailed Look at the Boot Process /sbin/init command, The /sbin/init Program BIOS, The BIOS boot loader, The Boot Loader EFI shell, The BIOS kernel, The Kernel BrowserMatch Apache configuration directive, BrowserMatch C cache directives for Apache, Cache Directives CacheNegotiatedDocs Apache configuration directive, CacheNegotiatedDocs caching-only nameserver (see BIND) CGI scripts allowing execution outside cgi-bin, Directory outside the ScriptAlias, AddHandler channel bonding interface configuration of, Channel Bonding Interfaces module configuration, The Channel Bonding Module module directives, bonding Module Directives character devices, /proc/devices (see also /proc/devices) definition of, /proc/devices chkconfig, Runlevel Utilities (see also services) configuration Apache HTTP Server, Configuration Directives in httpd.conf virtual hosts, Virtual Hosts configuration directives, Apache, General Configuration Tips AccessFileName, AccessFileName Action, Action AddDescription, AddDescription AddEncoding, AddEncoding AddHandler, AddHandler AddIcon, AddIcon AddIconByEncoding, AddIconByEncoding AddIconByType, AddIconByType AddLanguage, AddLanguage AddType, AddType Alias, Alias Allow, Allow AllowOverride, AllowOverride BrowserMatch, BrowserMatch CacheNegotiatedDocs, CacheNegotiatedDocs CustomLog, CustomLog DefaultIcon, DefaultIcon DefaultType, DefaultType Deny, Deny Directory, Directory DirectoryIndex, DirectoryIndex DocumentRoot, DocumentRoot ErrorDocument, ErrorDocument ErrorLog, ErrorLog ExtendedStatus, ExtendedStatus for cache functionality, Cache Directives Group, Group HeaderName, HeaderName HostnameLookups, HostnameLookups IfDefine, IfDefine IfModule, IfModule Include, Include IndexIgnore, IndexIgnore IndexOptions, IndexOptions KeepAlive, KeepAlive (see also KeepAliveTimeout) troubleshooting, KeepAlive KeepAliveTimeout, KeepAliveTimeout LanguagePriority, LanguagePriority Listen, Listen LoadModule, LoadModule Location, Location LogFormat format options, LogFormat LogLevel, LogLevel MaxClients, MaxClients MaxKeepAliveRequests, MaxKeepAliveRequests MaxRequestsPerChild, MaxRequestsPerChild MaxSpareServers, MinSpareServers and MaxSpareServers MaxSpareThreads, MinSpareThreads and MaxSpareThreads MinSpareServers, MinSpareServers and MaxSpareServers MinSpareThreads, MinSpareThreads and MaxSpareThreads NameVirtualHost, NameVirtualHost Options, Options Order, Order PidFile, PidFile Proxy, Proxy ProxyRequests, ProxyRequests ReadmeName, ReadmeName Redirect, Redirect ScriptAlias, ScriptAlias ServerAdmin, ServerAdmin ServerName, ServerName ServerRoot, ServerRoot ServerSignature, ServerSignature SetEnvIf, SetEnvIf SSL configuration, Configuration Directives for SSL StartServers, StartServers SuexecUserGroup, The suexec Module , SuexecUserGroup ThreadsPerChild, ThreadsPerChild Timeout, Timeout TypesConfig, TypesConfig UseCanonicalName, UseCanonicalName User, User UserDir, UserDir VirtualHost, VirtualHost CustomLog Apache configuration directive, CustomLog D DefaultIcon Apache configuration directive, DefaultIcon DefaultType Apache configuration directive, DefaultType Denial of Service prevention using xinetd, Resource Management Options (see also xinetd) Denial of Service attack, /proc/sys/net/ (see also /proc/sys/net/ directory) definition of, /proc/sys/net/ Deny Apache configuration directive, Deny desktop environments (see X) dev directory, The /dev/ Directory devices, local ownership of, PAM and Device Ownership (see also PAM) directories /boot/, The /boot/ Directory /dev/, The /dev/ Directory /etc/, The /etc/ Directory /lib/, The /lib/ Directory /media/, The /media/ Directory /mnt/, The /mnt/ Directory /opt/, The /opt/ Directory /proc/, The /proc/ Directory /sbin/, The /sbin/ Directory /srv/, The /srv/ Directory /sys/, The /sys/ Directory /usr/, The /usr/ Directory /usr/local/, The /usr/local/ Directory /var/, The /var/ Directory Directory Apache configuration directive, Directory DirectoryIndex Apache configuration directive, DirectoryIndex display managers (see X) DNS, Introduction to DNS (see also BIND) introducing, Introduction to DNS documentation experienced user, For the More Experienced finding appropriate, Finding Appropriate Documentation first-time users, Documentation For First-Time Linux Users newsgroups, Introduction to Linux Newsgroups websites, Introduction to Linux Websites guru, Documentation for Linux Gurus DocumentRoot Apache configuration directive, DocumentRoot changing, Virtual Hosts changing shared, The Secure Web Server Virtual Host DoS (see Denial of Service) DoS attack (see Denial of Service attack) drivers (see kernel modules) DSOs loading, Adding Modules E EFI shell definition of, The BIOS (see also boot process) ELILO, Boot Loaders for Other Architectures , Boot Loaders and System Architecture (see also boot loaders) email additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites Fetchmail, Fetchmail history of, Email Postfix, Postfix Procmail, Mail Delivery Agents program classifications, Email Program Classifications protocols, Email Protocols IMAP, IMAP POP, POP SMTP, SMTP security, Securing Communication clients, Secure Email Clients servers, Securing Email Client Communications Sendmail, Sendmail spam filtering out, Spam Filters types Mail Delivery Agent, Mail Delivery Agent Mail Transfer Agent, Mail Transfer Agent Mail User Agent, Mail User Agent epoch, /proc/stat (see also /proc/stat) definition of, /proc/stat ErrorDocument Apache configuration directive, ErrorDocument ErrorLog Apache configuration directive, ErrorLog etc directory, The /etc/ Directory Ethernet (see network) Ethernet modules (see kernel modules) exec-shield enabling, /proc/sys/kernel/ introducing, /proc/sys/kernel/ execution domains, /proc/execdomains (see also /proc/execdomains) definition of, /proc/execdomains ExtendedStatus Apache configuration directive, ExtendedStatus Extensible Firmware Interface shell (see EFI shell) F feedback contact information, We Need Feedback! Fetchmail, Fetchmail additional resources, Additional Resources command options, Fetchmail Command Options informational, Informational or Debugging Options special, Special Options configuration options, Fetchmail Configuration Options global options, Global Options server options, Server Options user options, User Options FHS, Overview of File System Hierarchy Standard (FHS) , FHS Organization (see also file system) file system FHS standard, FHS Organization hierarchy, Overview of File System Hierarchy Standard (FHS) organization, FHS Organization structure, File System Structure virtual (see proc file system) files, proc file system changing, Changing Virtual Files , Using the sysctl Command viewing, Viewing Virtual Files , Using the sysctl Command findsmb program, findsmb forwarding nameserver (see BIND) frame buffer device, /proc/fb (see also /proc/fb) FrontPage, After Installation fstab, /etc/fstab (see also NFS) FTP, FTP (see also vsftpd) active mode, Multiple Ports, Multiple Modes command port, Multiple Ports, Multiple Modes data port, Multiple Ports, Multiple Modes definition of, FTP introducing, The File Transport Protocol passive mode, Multiple Ports, Multiple Modes server software Red Hat Content Accelerator, FTP Servers vsftpd, FTP Servers G GNOME, Desktop Environments (see also X) Group Apache configuration directive, Group groups additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books GID, Users and Groups introducing, Users and Groups shared directories, Group Directories standard, Standard Groups tools for management of groupadd, User and Group Management Tools , User Private Groups system-config-users, User Private Groups User Manager, User and Group Management Tools user private, User Private Groups GRUB, The Boot Loader , Boot Loaders and System Architecture (see also boot loaders) additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites boot process, GRUB and the x86 Boot Process Changing Runlevels at Boot Time, Changing Runlevels at Boot Time changing runlevels with, GRUB Interfaces commands, GRUB Commands configuration file /boot/grub/grub.conf, Configuration File Structure structure, Configuration File Structure definition of, GRUB features, Features of GRUB installing, Installing GRUB interfaces, GRUB Interfaces command line, GRUB Interfaces menu, GRUB Interfaces menu entry editor, GRUB Interfaces order of, Interfaces Load Order menu configuration file, GRUB Menu Configuration File directives, Configuration File Directives role in boot process, The Boot Loader terminology, GRUB Terminology devices, Device Names files, File Names and Blocklists root file system, The Root File System and GRUB grub.conf, Configuration File Structure (see also GRUB) H halt, Shutting Down (see also shutdown) HeaderName Apache configuration directive, HeaderName hierarchy, file system, Overview of File System Hierarchy Standard (FHS) HostnameLookups Apache configuration directive, HostnameLookups hosts access files (see TCP wrappers) hosts.allow (see TCP wrappers) hosts.deny (see TCP wrappers) httpd.conf (see configuration directives, Apache) hugepages configuration of, /proc/sys/vm/ I IfDefine Apache configuration directive, IfDefine ifdown, Interface Control Scripts IfModule Apache configuration directive, IfModule ifup, Interface Control Scripts Include Apache configuration directive, Include IndexIgnore Apache configuration directive, IndexIgnore IndexOptions Apache configuration directive, IndexOptions init command, The /sbin/init Program (see also boot process) configuration files /etc/inittab, SysV Init Runlevels role in boot process, The /sbin/init Program (see also boot process) runlevels directories for, SysV Init Runlevels runlevels accessed by, Runlevels SysV init definition of, SysV Init Runlevels initrd directory, Special File Locations Under Red Hat Enterprise Linux insmod , Kernel Module Utilities introduction, Introduction ip6tables control scripts panic, iptables Control Scripts restart, iptables Control Scripts save, iptables Control Scripts start, iptables Control Scripts status, iptables Control Scripts stop, iptables Control Scripts introducing, ip6tables and IPv6 ipchains (see iptables) IPsec (see network) iptables /sbin/iptables-restore, Saving iptables Rules /sbin/iptables-save, Saving iptables Rules additional resources, Additional Resources installed documentation, Installed Documentation useful websites, Useful Websites chains target, Packet Filtering compared with ipchains, Differences between iptables and ipchains configuration files /etc/sysconfig/iptables, Saving iptables Rules /etc/sysconfig/iptables-config, iptables Control Scripts Configuration File /etc/sysconfig/iptables.save, Saving iptables Rules control scripts panic, iptables Control Scripts restart, iptables Control Scripts save, Saving iptables Rules , iptables Control Scripts start, iptables Control Scripts status, iptables Control Scripts stop, iptables Control Scripts match options, iptables Match Options modules, Additional Match Option Modules options, Options Used within iptables Commands commands, Command Options listing, Listing Options parameters, iptables Parameter Options structure of, Structure of iptables Options target, Target Options overview of, iptables packet filtering basics, Packet Filtering protocols ICMP, ICMP Protocol TCP, TCP Protocol UDP, UDP Protocol rules list, Packet Filtering saving rules, Saving iptables Rules tables, Packet Filtering K KDE, Desktop Environments (see also X) KeepAlive Apache configuration directive, KeepAlive KeepAliveTimeout Apache configuration directive, KeepAliveTimeout Kerberos additional resources, Additional Resources installed documentation, Installed Documentation useful websites, Useful Websites advantages of, Advantages of Kerberos and PAM, Kerberos and PAM Authentication Server (AS), How Kerberos Works clients set up, Configuring a Kerberos 5 Client definition of, Kerberos disadvantages of, Disadvantages of Kerberos how it works, How Kerberos Works Key Distribution Center (KDC), How Kerberos Works server set up, Configuring a Kerberos 5 Server terminology, Kerberos Terminology Ticket-granting Server (TGS), How Kerberos Works Ticket-granting Ticket (TGT), How Kerberos Works kernel role in boot process, The Kernel kernel modules /etc/rc.modules, Persistent Module Loading Ethernet modules parameters, Ethernet Parameters supporting multiple cards, Using Multiple Ethernet Cards introducing, General Parameters and Modules listing, Kernel Module Utilities loading, Kernel Module Utilities module parameters specifying, Specifying Module Parameters persistent loading, Persistent Module Loading SCSI modules parameters, Storage parameters types of, General Parameters and Modules unload, Kernel Module Utilities kwin, Window Managers (see also X) L LanguagePriority Apache configuration directive, LanguagePriority LDAP additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites advantages of, Why Use LDAP? applications ldapadd, OpenLDAP Daemons and Utilities ldapdelete, OpenLDAP Daemons and Utilities ldapmodify, OpenLDAP Daemons and Utilities ldappasswd, OpenLDAP Daemons and Utilities ldapsearch, OpenLDAP Daemons and Utilities OpenLDAP suite, OpenLDAP Daemons and Utilities slapadd, OpenLDAP Daemons and Utilities slapcat, OpenLDAP Daemons and Utilities slapd, OpenLDAP Daemons and Utilities slapindex, OpenLDAP Daemons and Utilities slappasswd, OpenLDAP Daemons and Utilities slurpd, OpenLDAP Daemons and Utilities utilities, OpenLDAP Daemons and Utilities authentication using, Configuring a System to Authenticate Using OpenLDAP Authentication Configuration Tool, Configuring a System to Authenticate Using OpenLDAP editing /etc/ldap.conf, Configuring a System to Authenticate Using OpenLDAP editing /etc/nsswitch.conf, Configuring a System to Authenticate Using OpenLDAP editing /etc/openldap/ldap.conf, Configuring a System to Authenticate Using OpenLDAP editing slapd.conf, Configuring a System to Authenticate Using OpenLDAP packages, Configuring a System to Authenticate Using OpenLDAP PAM, PAM and LDAP setting up clients, Configuring a System to Authenticate Using OpenLDAP client applications, LDAP Client Applications configuration files /etc/ldap.conf, OpenLDAP Configuration Files /etc/openldap/ldap.conf, OpenLDAP Configuration Files /etc/openldap/schema/ directory, OpenLDAP Configuration Files , The /etc/openldap/schema/ Directory /etc/openldap/slapd.conf, OpenLDAP Configuration Files , Editing /etc/openldap/slapd.conf daemons, OpenLDAP Daemons and Utilities definition of, Lightweight Directory Access Protocol (LDAP) LDAPv2, Lightweight Directory Access Protocol (LDAP) LDAPv3, Lightweight Directory Access Protocol (LDAP) LDIF format of, LDAP Terminology OpenLDAP features, OpenLDAP Features setting up, OpenLDAP Setup Overview migrating older directories, Migrating Directories from Earlier Releases terminology, LDAP Terminology upgrading directories, Migrating Directories from Earlier Releases using with Apache HTTP Server, PHP4, LDAP, and the Apache HTTP Server using with NSS, NSS, PAM, and LDAP using with PAM, NSS, PAM, and LDAP using with PHP4, PHP4, LDAP, and the Apache HTTP Server ldapadd command, OpenLDAP Daemons and Utilities (see also LDAP) ldapdelete command, OpenLDAP Daemons and Utilities (see also LDAP) ldapmodify command, OpenLDAP Daemons and Utilities (see also LDAP) ldappasswd command, OpenLDAP Daemons and Utilities (see also LDAP) ldapsearch command, OpenLDAP Daemons and Utilities (see also LDAP) lib directory, The /lib/ Directory Lightweight Directory Access Protocol (see LDAP) LILO, The Boot Loader (see also boot loaders) role in boot process, The Boot Loader Listen Apache configuration directive, Listen LoadModule Apache configuration directive, LoadModule Location Apache configuration directive, Location LogFormat Apache configuration directive, LogFormat LogLevel Apache configuration directive, LogLevel lsmod , Kernel Module Utilities lspci, /proc/pci M Mail Delivery Agent (see email) Mail Transfer Agent (see email) Mail User Agent (see email) make_smbcodepage program, make_smbcodepage make_unicodemap program, make_unicodemap Master Boot Record (see MBR) master nameserver (see BIND) MaxClients Apache configuration directive, MaxClients MaxKeepAliveRequests Apache configuration directive, MaxKeepAliveRequests MaxRequestsPerChild Apache configuration directive, MaxRequestsPerChild MaxSpareServers Apache configuration directive, MinSpareServers and MaxSpareServers MaxSpareThreads Apache configuration directive, MinSpareThreads and MaxSpareThreads MBR definition of, A Detailed Look at the Boot Process , The BIOS (see also boot loaders) (see also boot process) MDA (see Mail Delivery Agent) media directory, The /media/ Directory metacity, Window Managers (see also X) MinSpareServers Apache configuration directive, MinSpareServers and MaxSpareServers MinSpareThreads Apache configuration directive, MinSpareThreads and MaxSpareThreads mnt directory, The /mnt/ Directory modprobe , Kernel Module Utilities module parameters (see kernel modules) modules (see kernel modules) Apache loading, Adding Modules the own, Adding Modules default, Default Modules MTA (see Mail Transfer Agent) MUA (see Mail User Agent) mwm, Window Managers (see also X) N named daemon (see BIND) named.conf (see BIND) nameserver (see BIND) NameVirtualHost Apache configuration directive, NameVirtualHost net program, net netfilter (see iptables) network additional resources, Additional Resources commands /sbin/ifdown, Interface Control Scripts /sbin/ifup, Interface Control Scripts /sbin/service network, Interface Control Scripts configuration, Interface Configuration Files functions, Network Function Files interfaces, Interface Configuration Files alias, Alias and Clone Files channel bonding, Channel Bonding Interfaces clone, Alias and Clone Files dialup, Dialup Interfaces Ethernet, Ethernet Interfaces IPsec, IPsec Interfaces scripts, Network Interfaces Network File System (see NFS) NFS additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites client /etc/fstab, /etc/fstab autofs, autofs configuration, NFS Client Configuration Files mount options, Common NFS Mount Options condrestart, Starting and Stopping NFS how it works, How It Works introducing, Network File System (NFS) portmap, NFS and portmap reloading, Starting and Stopping NFS required services, Required Services restarting, Starting and Stopping NFS security, Securing NFS file permissions, File Permissions host access, Host Access NFSv2/NFSv3 host access, Using NFSv2 or NFSv3 NFSv4 host access, Using NFSv4 server configuration, NFS Server Configuration /etc/exports, The /etc/exports Configuration File exportfs command, The exportfs Command exportfs command with NFSv4, Using exportfs with NFSv4 starting, Starting and Stopping NFS status, Starting and Stopping NFS stopping, Starting and Stopping NFS TCP, How It Works UDP, How It Works NIC modules (see kernel modules) nmblookup program, nmblookup non-secure Web server disabling, The Secure Web Server Virtual Host ntsysv, Runlevel Utilities (see also services) O objects, dynamically shared (see DSOs) OpenLDAP (see LDAP) OpenSSH, Features of SSH (see also SSH) configuration files for, OpenSSH Configuration Files opt directory, The /opt/ Directory Options Apache configuration directive, Options Order Apache configuration directive, Order OS/400, Boot Loaders and System Architecture (see also boot loaders) P packet filtering (see iptables) PAM additional resources, Additional Resources installed documentation, Installed Documentation useful websites, Useful Websites advantages of, Advantages of PAM configuration files, PAM Configuration Files control flags, Control Flag definition of, Pluggable Authentication Modules (PAM) Kerberos and, Kerberos and PAM modules, Module Interface arguments, Module Arguments components, Module Interface creating, Creating PAM Modules interfaces, Module Interface location of, Module Name stacking, Stacking Module Interfaces , Sample PAM Configuration Files pam_console definition of, PAM and Device Ownership pam_timestamp authentication icon and, PAM and Administrative Credential Caching definition of, PAM and Administrative Credential Caching destroying timestamps, Removing the Timestamp File directives, Common pam_timestamp Directives pam_timestamp_check destroying timestamp using, Removing the Timestamp File sample configuration files, Sample PAM Configuration Files service files, PAM Service Files shadow passwords, Sample PAM Configuration Files pam_console (see PAM) pam_timestamp (see PAM) pam_timestamp_check (see PAM) password, Sample PAM Configuration Files (see also PAM) shadow passwords, Sample PAM Configuration Files passwords shadow, Shadow Passwords pdbedit program, pdbedit PidFile Apache configuration directive, PidFile Pluggable Authentication Modules (see PAM) portmap, NFS and portmap (see also NFS) NFS, Troubleshooting NFS and portmap rpcinfo, Troubleshooting NFS and portmap status, Starting and Stopping NFS Postfix, Postfix default installation, The Default Postfix Installation prefdm (see X) proc directory, The /proc/ Directory proc file system /proc/apm, /proc/apm /proc/buddyinfo, /proc/buddyinfo /proc/bus/ directory, /proc/bus/ /proc/cmdline, /proc/cmdline /proc/cpuinfo, /proc/cpuinfo /proc/crypto, /proc/crypto /proc/devices block devices, /proc/devices character devices, /proc/devices /proc/dma, /proc/dma /proc/driver/ directory, /proc/driver/ /proc/execdomains, /proc/execdomains /proc/fb, /proc/fb /proc/filesystems, /proc/filesystems /proc/fs/ directory, /proc/fs /proc/ide/ directory, /proc/ide/ device directories, Device Directories /proc/interrupts, /proc/interrupts /proc/iomem, /proc/iomem /proc/ioports, /proc/ioports /proc/irq/ directory, /proc/irq/ /proc/kcore, /proc/kcore /proc/kmsg, /proc/kmsg /proc/loadavg, /proc/loadavg /proc/locks, /proc/locks /proc/mdstat, /proc/mdstat /proc/meminfo, /proc/meminfo /proc/misc, /proc/misc /proc/modules, /proc/modules /proc/mounts, /proc/mounts /proc/mtrr, /proc/mtrr /proc/net/ directory, /proc/net/ /proc/partitions, /proc/partitions /proc/pci viewing using lspci, /proc/pci /proc/scsi/ directory, /proc/scsi/ /proc/self/ directory, /proc/self/ /proc/slabinfo, /proc/slabinfo /proc/stat, /proc/stat /proc/swaps, /proc/swaps /proc/sys/ directory, /proc/sys/ , Using the sysctl Command (see also sysctl) /proc/sys/dev/ directory, /proc/sys/dev/ /proc/sys/fs/ directory, /proc/sys/fs/ /proc/sys/kernel/ directory, /proc/sys/kernel/ /proc/sys/kernel/exec-shield, /proc/sys/kernel/ /proc/sys/kernel/sysrq (see system request key) /proc/sys/net/ directory, /proc/sys/net/ /proc/sys/vm/ directory, /proc/sys/vm/ /proc/sysrq-trigger, /proc/sysrq-trigger /proc/sysvipc/ directory, /proc/sysvipc/ /proc/tty/ directory, /proc/tty/ /proc/uptime, /proc/uptime /proc/version, /proc/version additional resources, Additional Resources installed documentation, Installed Documentation useful websites, Useful Websites changing files within, Changing Virtual Files , /proc/sys/ , Using the sysctl Command files within, top-level, Top-level Files within the proc File System introduced, The proc File System process directories, Process Directories subdirectories within, Directories within /proc/ viewing files within, Viewing Virtual Files Procmail, Mail Delivery Agents additional resources, Additional Resources configuration, Procmail Configuration recipes, Procmail Recipes delivering, Delivering vs. Non-Delivering Recipes examples, Recipe Examples flags, Flags local lockfiles, Specifying a Local Lockfile non-delivering, Delivering vs. Non-Delivering Recipes SpamAssassin, Spam Filters special actions, Special Conditions and Actions special conditions, Special Conditions and Actions programs running at boot time, Running Additional Programs at Boot Time Proxy Apache configuration directive, Proxy proxy server, ProxyRequests , Cache Directives ProxyRequests Apache configuration directive, ProxyRequests public_html directories, UserDir R rc.local modifying, Running Additional Programs at Boot Time rc.serial, Running Additional Programs at Boot Time (see also setserial command) ReadmeName Apache configuration directive, ReadmeName Red Hat Enterprise Linux-specific file locations /etc/sysconfig/, Special File Locations Under Red Hat Enterprise Linux (see also sysconfig directory) /var/lib/rpm/, Special File Locations Under Red Hat Enterprise Linux /var/spool/up2date, Special File Locations Under Red Hat Enterprise Linux Redirect Apache configuration directive, Redirect rmmod , Kernel Module Utilities root nameserver (see BIND) rpcclient program, rpcclient rpcinfo, Troubleshooting NFS and portmap runlevels (see init command) changing with GRUB, GRUB Interfaces configuration of, Runlevel Utilities (see also services) S Samba (see Samba) Abilities, Samba Features Account Information Databases, Samba Account Information Databases ldapsam, New Backends ldapsam_compat, Backward Compatible Backends mysqlsam, New Backends Plain Text, Backward Compatible Backends smbpasswd, Backward Compatible Backends tdbsam, New Backends xmlsam, New Backends Additional Resources, Additional Resources installed documentation, Installed Documentation Red Hat resources, Red Hat Documentation related books, Related Books useful websites, Useful Websites Backward Compatible Database Backends, Backward Compatible Backends Browsing, Samba Network Browsing CUPS Printing Support, Samba with CUPS Printing Support CUPS smb.conf, Simple smb.conf Settings daemon, Samba Daemons and Related Services nmbd, The nmbd daemon overview, Daemon Overview smbd, The smbd daemon winbindd, The winbindd daemon Introduction, Introduction to Samba Network Browsing, Samba Network Browsing Domain Browsing, Domain Browsing WINS, WINS (Windows Internetworking Name Server) Workgroup Browsing, Workgroup Browsing New Database Backends, New Backends Programs, Samba Distribution Programs findsmb, findsmb make_smbcodepage, make_smbcodepage make_unicodemap, make_unicodemap net, net nmblookup, nmblookup pdbedit, pdbedit rpcclient, rpcclient smbcacls, smbcacls smbclient, smbclient smbcontrol, smbcontrol smbgroupedit, smbgroupedit smbmount, smbmount smbpasswd, smbpasswd smbspool, smbspool smbstatus, smbstatus smbtar, smbtar testparm, testparm testprns, testprns wbinfo, wbinfo Reference, Samba Security Modes, Samba Security Modes Active Directory Security Mode, Active Directory Security Mode (User-Level Security) Domain Security Mode, Domain Security Mode (User-Level Security) Server Security Mode, Server Security Mode (User-Level Security) Share-Level Security, Share-Level Security User Level Security, User-Level Security Server Types, Samba Server Types and the smb.conf File server types Domain Controller, Domain Controller Domain Member, Domain Member Server Stand Alone, Stand-alone Server service conditional restarting, Starting and Stopping Samba reloading, Starting and Stopping Samba restarting, Starting and Stopping Samba starting, Starting and Stopping Samba stopping, Starting and Stopping Samba smb.conf, Samba Server Types and the smb.conf File Active Directory Member Server example, Active Directory Domain Member Server Anonymous Print Server example, Anonymous Print Server Anonymous Read Only example, Anonymous Read-Only Anonymous Read/Write example, Anonymous Read/Write BDC using LDAP, Backup Domain Controller (BDC) using LDAP NT4-style Domain Member example, Windows NT4-based Domain Member Server PDC using Active Directory, Primary Domain Controller (PDC) with Active Directory PDC using LDAP, Primary Domain Controller (PDC) using LDAP PDC using tdbsam, Primary Domain Controller (PDC) using tdbsam Secure File and Print Server example, Secure Read/Write File and Print Server WINS, WINS (Windows Internetworking Name Server) sbin directory, The /sbin/ Directory ScriptAlias Apache configuration directive, ScriptAlias SCSI modules (see kernel modules) security running Apache without, Virtual Hosts SELinux, SELinux additional resources, Additional Resources documentation, Red Hat Documentation installed documentation, Installed Documentation websites, Useful Websites introduction, Introduction to SELinux related files, Files Related to SELinux /etc/selinux/ Directory, The /etc/selinux/ Directory /etc/sysconfig/selinux, The /etc/sysconfig/selinux Configuration File /selinux/ pseudo-file system, The /selinux/ Pseudo-File System configuration, SELinux Configuration Files utilities, SELinux Utilities Sendmail, Sendmail additional resources, Additional Resources aliases, Masquerading common configuration changes, Common Sendmail Configuration Changes default installation, The Default Sendmail Installation LDAP and, Using Sendmail with LDAP limitations, Purpose and Limitations masquerading, Masquerading purpose, Purpose and Limitations spam, Stopping Spam with UUCP, Common Sendmail Configuration Changes serial ports (see setserial command) server side includes, Options , AddType ServerAdmin Apache configuration directive, ServerAdmin ServerName Apache configuration directive, ServerName ServerRoot Apache configuration directive, ServerRoot ServerSignature Apache configuration directive, ServerSignature services configuring with chkconfig, Runlevel Utilities configuring with ntsysv, Runlevel Utilities configuring with Services Configuration Tool, Runlevel Utilities Services Configuration Tool, Runlevel Utilities (see also services) SetEnvIf Apache configuration directive, SetEnvIf setserial command configuring, Running Additional Programs at Boot Time shadow (see password) shadow passwords overview of, Shadow Passwords shutdown, Shutting Down (see also halt) slab pools (see /proc/slabinfo) slapadd command, OpenLDAP Daemons and Utilities (see also LDAP) slapcat command, OpenLDAP Daemons and Utilities (see also LDAP) slapd command, OpenLDAP Daemons and Utilities (see also LDAP) slapindex command, OpenLDAP Daemons and Utilities (see also LDAP) slappasswd command, OpenLDAP Daemons and Utilities (see also LDAP) slave nameserver (see BIND) slurpd command, OpenLDAP Daemons and Utilities (see also LDAP) smbcacls program, smbcacls smbclient program, smbclient smbcontrol program, smbcontrol smbgroupedit program, smbgroupedit smbmount program, smbmount smbpasswd program, smbpasswd smbspool program, smbspool smbstatus program, smbstatus smbtar program, smbtar SpamAssassin using with Procmail, Spam Filters srv directory, The /srv/ Directory SSH protocol, SSH Protocol additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites authentication, Authentication configuration files, OpenSSH Configuration Files connection sequence, Event Sequence of an SSH Connection features of, Features of SSH insecure protocols and, Requiring SSH for Remote Connections layers of channels, Channels transport layer, Transport Layer port forwarding, Port Forwarding requiring for remote login, Requiring SSH for Remote Connections security risks, Why Use SSH? version 1, SSH Protocol Versions version 2, SSH Protocol Versions X11 forwarding, X11 Forwarding SSL configuration, Configuration Directives for SSL StartServers Apache configuration directive, StartServers startx, Runlevel 3 (see X) (see also X) stunnel, Securing Email Client Communications SuexecUserGroup Apache configuration directive, The suexec Module , SuexecUserGroup sys directory, The /sys/ Directory sysconfig directory, Special File Locations Under Red Hat Enterprise Linux /etc/sysconfig/amd, /etc/sysconfig/amd /etc/sysconfig/apm-scripts/ directory, Directories in the /etc/sysconfig/ Directory /etc/sysconfig/apmd, /etc/sysconfig/apmd /etc/sysconfig/arpwatch, /etc/sysconfig/arpwatch /etc/sysconfig/authconfig, /etc/sysconfig/authconfig /etc/sysconfig/autofs, /etc/sysconfig/autofs /etc/sysconfig/clock, /etc/sysconfig/clock /etc/sysconfig/desktop, /etc/sysconfig/desktop /etc/sysconfig/devlabel, /etc/sysconfig/devlabel /etc/sysconfig/dhcpd, /etc/sysconfig/dhcpd /etc/sysconfig/exim, /etc/sysconfig/exim /etc/sysconfig/firstboot, /etc/sysconfig/firstboot /etc/sysconfig/gpm, /etc/sysconfig/gpm /etc/sysconfig/harddisks, /etc/sysconfig/harddisks /etc/sysconfig/hwconf, /etc/sysconfig/hwconf /etc/sysconfig/init, /etc/sysconfig/init /etc/sysconfig/ip6tables-config, /etc/sysconfig/ip6tables-config /etc/sysconfig/iptables, Saving iptables Rules /etc/sysconfig/iptables-config, /etc/sysconfig/iptables-config /etc/sysconfig/irda, /etc/sysconfig/irda /etc/sysconfig/keyboard, /etc/sysconfig/keyboard /etc/sysconfig/kudzu, /etc/sysconfig/kudzu /etc/sysconfig/mouse, /etc/sysconfig/mouse /etc/sysconfig/named, /etc/sysconfig/named /etc/sysconfig/netdump, /etc/sysconfig/netdump /etc/sysconfig/network, /etc/sysconfig/network /etc/sysconfig/network-scripts/ directory, Network Interfaces /etc/sysconfig/ntpd, /etc/sysconfig/ntpd /etc/sysconfig/pcmcia, /etc/sysconfig/pcmcia /etc/sysconfig/radvd, /etc/sysconfig/radvd /etc/sysconfig/rawdevices, /etc/sysconfig/rawdevices /etc/sysconfig/samba, /etc/sysconfig/samba /etc/sysconfig/selinux, /etc/sysconfig/selinux /etc/sysconfig/sendmail, /etc/sysconfig/sendmail /etc/sysconfig/spamassassin, /etc/sysconfig/spamassassin /etc/sysconfig/squid, /etc/sysconfig/squid /etc/sysconfig/system-config-securitylevel , /etc/sysconfig/system-config-securitylevel /etc/sysconfig/system-config-users, /etc/sysconfig/system-config-users /etc/sysconfig/system-logviewer, /etc/sysconfig/system-logviewer /etc/sysconfig/tux, /etc/sysconfig/tux /etc/sysconfig/vncservers, /etc/sysconfig/vncservers /etc/sysconfig/xinetd, /etc/sysconfig/xinetd additional information about, The sysconfig Directory additional resources, Additional Resources installed documentation, Installed Documentation directories in, Directories in the /etc/sysconfig/ Directory files found in, Files in the /etc/sysconfig/ Directory sysctl configuring with /etc/sysctl.conf, Using the sysctl Command controlling /proc/sys/, Using the sysctl Command SysRq (see system request key) system request key enabling, /proc/sys/ System Request Key definition of, /proc/sys/ setting timing for, /proc/sys/kernel/ SysV init (see init command) T TCP wrappers, xinetd (see also xinetd) additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites advantages of, Advantages of TCP Wrappers configuration files /etc/hosts.allow, TCP Wrappers , TCP Wrappers Configuration Files /etc/hosts.deny, TCP Wrappers , TCP Wrappers Configuration Files access control option, Access Control expansions, Expansions formatting rules within, Formatting Access Rules hosts access files, TCP Wrappers Configuration Files log option, Logging operators, Operators option fields, Option Fields patterns, Patterns shell command option, Shell Commands spawn option, Shell Commands twist option, Shell Commands wildcards, Wildcards definition of, TCP Wrappers introducing, TCP Wrappers and xinetd testparm program, testparm testprns program, testprns ThreadsPerChild Apache configuration directive, ThreadsPerChild Timeout Apache configuration directive, Timeout TLB cache (see hugepages) troubleshooting error log, ErrorLog twm, Window Managers (see also X) TypesConfig Apache configuration directive, TypesConfig U UseCanonicalName Apache configuration directive, UseCanonicalName User Apache configuration directive, User user private groups (see groups) and shared directories, Group Directories UserDir Apache configuration directive, UserDir users /etc/passwd, Standard Users additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books introducing, Users and Groups personal HTML directories, UserDir standard, Standard Users tools for management of User Manager, User and Group Management Tools useradd, User and Group Management Tools UID, Users and Groups usr directory, The /usr/ Directory usr/local/ directory, The /usr/local/ Directory V var directory, The /var/ Directory var/lib/rpm/ directory, Special File Locations Under Red Hat Enterprise Linux var/spool/up2date/ directory, Special File Locations Under Red Hat Enterprise Linux virtual file system (see proc file system) virtual files (see proc file system) virtual hosts configuring, Virtual Hosts Listen command, Setting Up Virtual Hosts name-based, Virtual Hosts Options, Options server side includes, AddType VirtualHost Apache configuration directive, VirtualHost vsftpd, FTP Servers (see also FTP) additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites condrestart, Starting and Stopping vsftpd configuration file /etc/vsftpd/vsftpd.conf, vsftpd Configuration Options access controls, Log In Options and Access Controls anonymous user options, Anonymous User Options daemon options, Daemon Options directory options, Directory Options file transfer options, File Transfer Options format of, vsftpd Configuration Options local user options, Local User Options logging options, Logging Options login options, Log In Options and Access Controls network options, Network Options multihome configuration, Starting Multiple Copies of vsftpd restarting, Starting and Stopping vsftpd RPM files installed by, Files Installed with vsftpd security features, FTP Servers starting, Starting and Stopping vsftpd starting multiple copies of, Starting Multiple Copies of vsftpd status, Starting and Stopping vsftpd stopping, Starting and Stopping vsftpd W wbinfo program, wbinfo webmaster email address for, ServerAdmin window managers (see X) X X /etc/X11/xorg.conf boolean values for, The Structure Device, Device DRI, DRI Files section, Files InputDevice section, InputDevice introducing, xorg.conf Module section, Module Monitor, Monitor Screen, Screen Section tag, The Structure ServerFlags section, ServerFlags ServerLayout section, ServerLayout structure of, The Structure additional resources, Additional Resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites configuration files /etc/X11/ directory, X Server Configuration Files /etc/X11/xorg.conf, xorg.conf options within, X Server Configuration Files server options, xorg.conf desktop environments GNOME, Desktop Environments KDE, Desktop Environments display managers configuration of preferred, Runlevel 5 definition of, Runlevel 5 GNOME, Runlevel 5 KDE, Runlevel 5 prefdm script, Runlevel 5 xdm, Runlevel 5 fonts core X font subsystem, Core X Font System Fontconfig, Fontconfig Fontconfig, adding fonts to, Adding Fonts to Fontconfig FreeType, Fontconfig introducing, Fonts X Font Server, Core X Font System X Render Extension, Fontconfig xfs, Core X Font System xfs configuration, xfs Configuration xfs, adding fonts to, Adding Fonts to xfs Xft, Fontconfig introducing, The X Window System runlevels 3, Runlevel 3 5, Runlevel 5 runlevels and, Runlevels and X utilities system-config-display, The X11R6.8 Release window managers kwin, Window Managers metacity, Window Managers mwm, Window Managers twm, Window Managers X clients, The X Window System , Desktop Environments and Window Managers desktop environments, Desktop Environments startx command, Runlevel 3 window managers, Window Managers xinit command, Runlevel 3 X server, The X Window System features of, The X11R6.8 Release X Window System (see X) X.500 (see LDAP) X.500 Lite (see LDAP) xinetd, xinetd (see also TCP wrappers) additional resources installed documentation, Installed Documentation related books, Related Books useful websites, Useful Websites configuration files, xinetd Configuration Files /etc/xinetd.conf, The /etc/xinetd.conf File /etc/xinetd.d/ directory, The /etc/xinetd.d/ Directory access control options, Access Control Options binding options, Binding and Redirection Options logging options, The /etc/xinetd.conf File , The /etc/xinetd.d/ Directory , Logging Options redirection options, Binding and Redirection Options resource management options, Resource Management Options DoS attacks and, Resource Management Options introducing, TCP Wrappers and xinetd , xinetd relationship with TCP wrappers, Access Control Options xinit (see X) Xorg (see Xorg) Y YABOOT, Boot Loaders and System Architecture (see also boot loaders) Z z/IPL, Boot Loaders and System Architecture (see also boot loaders)

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