1. A little bit about Systemd
By:
James Loyd

2. Some Basic Info Targets only Linux distributions
It uses aggressive parallelization
Replacement for Sysvinit
Redhat project
Udev’s source tree has been merged into systemd

3. What is Systemd
“systemd is a system and session manager for Linux, compatible with SysV and LSB init scripts. systemd provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux cgroups, supports snapshotting and restoring of the system state, maintains mount and automount points and implements an elaborate transactional dependency-based service control logic.”
-from

4. Enabled by default in:

5. Available in (as an alternative)

6. Booting Differences

7. Socket Activation Not New Simultaneous start-up of services
No need to configure dependencies explicitly
If a service dies, the socket stays around
Upgrade and restart a service on demand
Replace a service at run- time

8. Logind Multi-seat managemet Session switch management
SSH differs from a non-remote login

9. The Journal Centralized logger with meta-data
Services must be started with Systemd to write to logs
Child processes of services can also write to logs
Users cannot write to logs they can only read them if given access

10. Interesting facts about Services
Must identify with systemd
Can be started on- demand
Controlled by cgroups
Startup services can be audited