Jump To Close Expand all Collapse all Table of contents Migration Planning Guide 1. Introduction Expand section "1. Introduction" Collapse section "1. Introduction" 1.1. Red Hat Enterprise Linux 6 1.2. Application Compatibility 2. Installation Expand section "2. Installation" Collapse section "2. Installation" 2.1. Kernel and Boot Options 2.2. Graphical Installer Expand section "2.2. Graphical Installer" Collapse section "2.2. Graphical Installer" 2.2.1. Devices and Disks 2.2.2. Kickstart Expand section "2.2.2. Kickstart" Collapse section "2.2.2. Kickstart" 2.2.2.1. Behavioral Changes 2.2.2.2. Command Changes 2.2.2.3. Packages Changes 2.2.2.4. Script Changes 2.2.2.5. Syntax Changes 2.2.2.6. Summary of Differences 2.2.2.7. pykickstart 2.2.3. Networking 2.2.4. Product Subscriptions and Content Updates 2.3. Text-Based Installer 3. Storage and File Systems Expand section "3. Storage and File Systems" Collapse section "3. Storage and File Systems" 3.1. kdump 3.2. RAID Expand section "3.2. RAID" Collapse section "3.2. RAID" 3.2.1. Upgrades 3.3. ext4 Expand section "3.3. ext4" Collapse section "3.3. ext4" 3.3.1. Migration from ext3 3.3.2. Behavioral changes 3.4. blockdev 3.5. Tape devices 4. Networking and Services Expand section "4. Networking and Services" Collapse section "4. Networking and Services" 4.1. Interfaces and Configuration 4.2. Service Initialization Expand section "4.2. Service Initialization" Collapse section "4.2. Service Initialization" 4.2.1. xinetd 4.2.2. Runlevels 4.2.3. Upstart 4.3. IPTables/Firewalls 4.4. Apache HTTP Server 4.5. Samba 4.6. PHP 4.7. BIND 4.8. SNMP 4.9. NTP 4.10. PTP 4.11. Kerberos 4.12. Mail Expand section "4.12. Mail" Collapse section "4.12. Mail" 4.12.1. Sendmail 4.12.2. Exim 4.12.3. Dovecot Expand section "4.12.3. Dovecot" Collapse section "4.12.3. Dovecot" 4.12.3.1. Dovecot configuration 4.13. MySQL® Expand section "4.13. MySQL®" Collapse section "4.13. MySQL®" 4.13.1. DBD Driver 4.14. PostgreSQL Expand section "4.14. PostgreSQL" Collapse section "4.14. PostgreSQL" 4.14.1. Upgrading Databases 4.14.2. Other Changes 4.15. Squid 4.16. Bluetooth Expand section "4.16. Bluetooth" Collapse section "4.16. Bluetooth" 4.16.1. Bluetooth Service On Demand 4.17. Cron Expand section "4.17. Cron" Collapse section "4.17. Cron" 4.17.1. Vixie cron and Cronie 4.18. Logging 5. Command Line Tools Expand section "5. Command Line Tools" Collapse section "5. Command Line Tools" 5.1. Grep 5.2. Sed 5.3. Pcre 5.4. Shells 5.5. Nautilus 6. System Configuration Expand section "6. System Configuration" Collapse section "6. System Configuration" 6.1. ACPI Expand section "6.1. ACPI" Collapse section "6.1. ACPI" 6.1.1. CPU hotplug 6.2. Logging 7. Desktop Expand section "7. Desktop" Collapse section "7. Desktop" 7.1. GDM Configuration 8. Security and Authentication Expand section "8. Security and Authentication" Collapse section "8. Security and Authentication" 8.1. SELinux 8.2. openCryptoki 8.3. SSSD 8.4. LDAP Expand section "8.4. LDAP" Collapse section "8.4. LDAP" 8.4.1. OpenLDAP 8.4.2. Converting slapd configuration 8.5. Checksums 8.6. Pluggable Authentication Modules (PAM) 8.7. System Users 8.8. NIST SCAP 1.2 Certification 8.9. Changes to RSA and DSA Key Generation 9. System Monitoring and Kernel Expand section "9. System Monitoring and Kernel" Collapse section "9. System Monitoring and Kernel" 9.1. dracut 9.2. IP Virtual Server (IPVS) 9.3. Joystick support 9.4. Automatic Bug Reporting Tool (ABRT) Expand section "9.4. Automatic Bug Reporting Tool (ABRT)" Collapse section "9.4. Automatic Bug Reporting Tool (ABRT)" 9.4.1. ABRT Events 10. Package and Driver Changes Expand section "10. Package and Driver Changes" Collapse section "10. Package and Driver Changes" 10.1. System Configuration Tools Changes Expand section "10.1. System Configuration Tools Changes" Collapse section "10.1. System Configuration Tools Changes" 10.1.1. system-config-bind 10.1.2. system-config-boot 10.1.3. system-config-cluster 10.1.4. system-config-display 10.1.5. system-config-httpd 10.1.6. system-config-lvm 10.1.7. system-config-netboot 10.1.8. system-config-nfs 10.1.9. system-config-rootpassword 10.1.10. system-config-samba 10.1.11. system-config-securitylevel 10.1.12. system-config-soundcard 10.1.13. system-config-switchmail 10.1.14. Preupgrade Assistant 10.1.15. Red Hat Upgrade Tool 10.2. Bash (Bourne-Again Shell) Expand section "10.2. Bash (Bourne-Again Shell)" Collapse section "10.2. Bash (Bourne-Again Shell)" 10.2.1. Regular Expressions 10.3. Other Package Changes Expand section "10.3. Other Package Changes" Collapse section "10.3. Other Package Changes" 10.3.1. New Packages 10.3.2. Updated Packages 10.3.3. Discontinued Packages 10.3.4. Deprecated Packages 10.4. Driver Changes Expand section "10.4. Driver Changes" Collapse section "10.4. Driver Changes" 10.4.1. Discontinued Drivers 10.4.2. Deprecated Drivers 10.4.3. Discontinued Kernel Components 10.5. Library Changes A. Revision History Legal Notice Settings Close Language: Español Русский Português 日本語 Italian Deutsch Français 简体中文 English Language: Español Русский Português 日本語 Italian Deutsch Français 简体中文 English Format: Multi-page Single-page PDF Format: Multi-page Single-page PDF Language and Page Formatting Options Language: Español Русский Português 日本語 Italian Deutsch Français 简体中文 English Language: Español Русский Português 日本語 Italian Deutsch Français 简体中文 English Format: Multi-page Single-page PDF Format: Multi-page Single-page PDF Red Hat Training A Red Hat training course is available for Red Hat Enterprise Linux 4.12.2. Exim Exim has been removed from Red Hat Enterprise Linux 6. Postfix is the default and recommended MTA. Previous Next