Introduction to system administration, managing system resources including processes, memory and disk space. Maintaining and interpreting log files, Configuring and managing a DNS service. Creating and managing user accounts, Configuring and managing an email system; Installing and managing shared applications; Use of shell scripts to automate procedures; managing cross-platform file services; managing Windows/Unix/Linux printing systems; Monitoring, analyzing and tuning system performance; Managing and configuring virus protection strategies; Implementing any other security measures; Performing system upgrades and version management and Performing system backup and recovery procedures