Troubleshooting and System Maintenance

• boot systems into different run levels for troubleshooting and system maintenance
• diagnose and correct misconfigured networking
• diagnose and correct hostname resolution problems
• configure the X Window System and a desktop environment
• add new partitions, filesystems, and swap to existing systems
• use standard command-line tools to analyze problems and configure system

Installation and Configuration

• perform network OS installation
• implement a custom partitioning scheme
• configure printing
• configure the scheduling of tasks using cron and at
• attach system to a network directory service, such as NIS or LDAP
• configure autofs
• add and manage users, groups, quotas, and File Access Control Lists
• configure filesystem permissions for collaboration
• install and update packages using rpm
• properly update the kernel package
• configure the system to update/install packages from remote repositories using yum or pup
• modify the system bootloader
• implement software RAID at install-time and run-time
• use /proc/sys and sysctl to modify and set kernel run-time parameters
• use scripting to automate system maintenance tasks
• configure NTP for time synchronization with a higher-stratum server