如何在Linux中禁用和挂起休眠

　　参考：https://www.a5idc.net/helpview_888.html

　　Ubuntu在启动以后过一段时间大概20分钟左右会自动休眠，在另外一台主机使用脚本检测80端口可以看到多久休眠

 

 　　禁用休眠前查看状态

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target ● sleep.target - Sleep      Loaded: loaded (/lib/systemd/system/sleep.target; static; vendor preset: enabled)      Active: inactive (dead)        Docs: man:systemd.special(7)   8月 24 18:00:40 hdy-desktop systemd[1]: Reached target Sleep. 8月 24 18:02:50 hdy-desktop systemd[1]: Stopped target Sleep. 8月 24 18:22:50 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 08:37:14 hdy-desktop systemd[1]: Stopped target Sleep. 8月 25 08:57:15 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 09:03:24 hdy-desktop systemd[1]: Stopped target Sleep. 8月 25 09:23:25 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 09:29:05 hdy-desktop systemd[1]: Stopped target Sleep.   ● suspend.target - Suspend      Loaded: loaded (/lib/systemd/system/suspend.target; static; vendor preset: enabled)      Active: inactive (dead)        Docs: man:systemd.special(7)   8月 24 18:02:50 hdy-desktop systemd[1]: Reached target Suspend. 8月 24 18:02:50 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 08:37:14 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 08:37:14 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 09:03:24 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 09:03:24 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 09:29:05 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 09:29:05 hdy-desktop systemd[1]: Stopped target Suspend.   ● hibernate.target - Hibernate      Loaded: loaded (/lib/systemd/system/hibernate.target; static; vendor preset: enabled)      Active: inactive (dead)        Docs: man:systemd.special(7)   ● hybrid-sleep.target - Hybrid Suspend+Hibernate      Loaded: loaded (/lib/systemd/system/hybrid-sleep.target; static; vendor preset: enabled)      Active: inactive (dead)        Docs: man:systemd.special(7)

 　　禁止休眠

?

1 2 3 4 5

root@hdy-desktop:~# systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target Created symlink /etc/systemd/system/sleep.target → /dev/null. Created symlink /etc/systemd/system/suspend.target → /dev/null. Created symlink /etc/systemd/system/hibernate.target → /dev/null. Created symlink /etc/systemd/system/hybrid-sleep.target → /dev/null.

 　　再次查看状态，变成masked了

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

root@hdy-desktop:~# systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target ● sleep.target      Loaded: masked (Reason: Unit sleep.target is masked.)      Active: inactive (dead)   8月 24 18:00:40 hdy-desktop systemd[1]: Reached target Sleep. 8月 24 18:02:50 hdy-desktop systemd[1]: Stopped target Sleep. 8月 24 18:22:50 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 08:37:14 hdy-desktop systemd[1]: Stopped target Sleep. 8月 25 08:57:15 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 09:03:24 hdy-desktop systemd[1]: Stopped target Sleep. 8月 25 09:23:25 hdy-desktop systemd[1]: Reached target Sleep. 8月 25 09:29:05 hdy-desktop systemd[1]: Stopped target Sleep.   ● suspend.target      Loaded: masked (Reason: Unit suspend.target is masked.)      Active: inactive (dead)   8月 24 18:02:50 hdy-desktop systemd[1]: Reached target Suspend. 8月 24 18:02:50 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 08:37:14 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 08:37:14 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 09:03:24 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 09:03:24 hdy-desktop systemd[1]: Stopped target Suspend. 8月 25 09:29:05 hdy-desktop systemd[1]: Reached target Suspend. 8月 25 09:29:05 hdy-desktop systemd[1]: Stopped target Suspend.   ● hibernate.target      Loaded: masked (Reason: Unit hibernate.target is masked.)      Active: inactive (dead)   ● hybrid-sleep.target      Loaded: masked (Reason: Unit hybrid-sleep.target is masked.)      Active: inactive (dead)

 　　重启主机

?

1

reboot

 　　再次查看

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

root@hdy-desktop:~# systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target ● sleep.target      Loaded: masked (Reason: Unit sleep.target is masked.)      Active: inactive (dead)   ● suspend.target      Loaded: masked (Reason: Unit suspend.target is masked.)      Active: inactive (dead)   ● hibernate.target      Loaded: masked (Reason: Unit hibernate.target is masked.)      Active: inactive (dead)   ● hybrid-sleep.target      Loaded: masked (Reason: Unit hybrid-sleep.target is masked.)      Active: inactive (dead)

 　　主机不在休眠了

　　重新启动休眠

?

1	systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target

 　　注意：改禁止休眠命令Ubuntu和Centos通用