Where to start -- Booting and system management daemons -- Access control and rootly powers -- Process control -- The filesystem -- Software installation and management -- Scripting and the shell -- User management -- Cloud computing -- Logging -- Drivers and the kernel -- Printing -- TCP/IP networking -- Physical networking -- IP routing -- DNS: the domain name system -- Single sign-on -- Electronic mail -- Web hosting -- Storage -- The network file system -- SMB -- Configuration management -- Virtualization -- Containers -- Continuous integration and delivery -- Security -- Monitoring -- Performance analysis -- Data center basics -- Methodology, policy, and politics