Linux Basic system operating level

Linux system has 7 operating levels

Level 0: System shutdown status, the system default operation level cannot be 0, otherwise it will not start normally; for example: init0= shutdown

Level 1: Single user working status, root privileges for system maintenance, remote login Forbidden

Level 2: Multi-User State (no NFS)

Level 3: Full multi-user state (no NFS), login to console command terminal mode

Level 4: System not Used (reserved)

Level 5:x11 Console, login and enter graphical interface mode

Level 6: The system shuts down and restarts after normal shutdown, the default runlevel cannot be set to 6, otherwise it will not start normally; For example: init6= restart

Note: For NFS, please refer to http://www.cnblogs.com/Linux-MAC/p/7084688.html

Note content is from the network search, look cautious!

Linux Basic system operating level