要说明的是登录管理器并不是必须的。
It's important to note that it's not necessary to use a login manager.
当作业到达部署管理器时,登录成功,并且作业将运行。
When the job reaches the deployment manager, login succeeds, and the job will run.
图形登录屏幕通过一个图形显示管理器处理,比如gdm for Gnome。
Graphical login screens are handled with a graphical display manager, such as GDM for Gnome.
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