VIII. The system control service
1. Common mode control type and
2. Check the operation of the system level
Use the init command to change run levels
4. Use the tools systemctl
Systemctl isolate graphical.target equivalent command init 5
Command systemctl isolate multi.user.target equivalent to init 3
5. Review the default boot the system run level
systemctl get-default
6. Modify the default boot runlevel
ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
7. Review the service network port is currently running
netstat -ntap
8. Check Services pseudo-terminal
Command ntsysv enter a space control whether check TAB to confirm the cancel button below
9. View the status of system services start
systemctl is-enabled
10. Modify the service operating status
systemctl enable/disable 服务
