53 lines
No EOL
1.7 KiB
XML
53 lines
No EOL
1.7 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
|
||
xmlns:xlink="http://www.w3.org/1999/xlink"
|
||
xmlns:xi="http://www.w3.org/2001/XInclude"
|
||
version="5.0"
|
||
xml:id="sec-user-sessions">
|
||
|
||
<title>User Sessions</title>
|
||
|
||
<para>Systemd keeps track of all users who are logged into the system
|
||
(e.g. on a virtual console or remotely via SSH). The command
|
||
<command>loginctl</command> allows querying and manipulating user
|
||
sessions. For instance, to list all user sessions:
|
||
|
||
<screen>
|
||
$ loginctl
|
||
SESSION UID USER SEAT
|
||
c1 500 eelco seat0
|
||
c3 0 root seat0
|
||
c4 500 alice
|
||
</screen>
|
||
|
||
This shows that two users are logged in locally, while another is
|
||
logged in remotely. (“Seats” are essentially the combinations of
|
||
displays and input devices attached to the system; usually, there is
|
||
only one seat.) To get information about a session:
|
||
|
||
<screen>
|
||
$ loginctl session-status c3
|
||
c3 - root (0)
|
||
Since: Tue, 2013-01-08 01:17:56 CET; 4min 42s ago
|
||
Leader: 2536 (login)
|
||
Seat: seat0; vc3
|
||
TTY: /dev/tty3
|
||
Service: login; type tty; class user
|
||
State: online
|
||
CGroup: name=systemd:/user/root/c3
|
||
├─ 2536 /nix/store/10mn4xip9n7y9bxqwnsx7xwx2v2g34xn-shadow-4.1.5.1/bin/login --
|
||
├─10339 -bash
|
||
└─10355 w3m nixos.org
|
||
</screen>
|
||
|
||
This shows that the user is logged in on virtual console 3. It also
|
||
lists the processes belonging to this session. Since systemd keeps
|
||
track of this, you can terminate a session in a way that ensures that
|
||
all the session’s processes are gone:
|
||
|
||
<screen>
|
||
$ loginctl terminate-session c3
|
||
</screen>
|
||
|
||
</para>
|
||
|
||
</chapter> |