nss-systemd(8)

NAME

   nss-systemd, libnss_systemd.so.2 - Provide UNIX user and group name
   resolution for dynamic users and groups.

SYNOPSIS

   libnss_systemd.so.2

DESCRIPTION

   nss-systemd is a plug-in module for the GNU Name Service Switch (NSS)
   functionality of the GNU C Library (glibc), providing UNIX user and
   group name resolution for dynamic users and groups allocated through
   the DynamicUser= option in systemd unit files. See systemd.exec(5) for
   details on this option.

   This module also ensures that the root and nobody users and groups
   (i.e. the users/groups with the UIDs/GIDs 0 and 65534) remain
   resolvable at all times, even if they aren't listed in /etc/passwd or
   /etc/group, or if these files are missing.

   To activate the NSS module, add "systemd" to the lines starting with
   "passwd:" and "group:" in /etc/nsswitch.conf.

   It is recommended to place "systemd" after the "files" or "compat"
   entry of the /etc/nsswitch.conf lines so that /etc/passwd and
   /etc/group based mappings take precedence.

EXAMPLE

   Here is an example /etc/nsswitch.conf file that enables nss-systemd
   correctly:

       passwd:         compat mymachines systemd
       group:          compat mymachines systemd
       shadow:         compat

       hosts:          files mymachines resolve [!UNAVAIL=return] dns myhostname
       networks:       files

       protocols:      db files
       services:       db files
       ethers:         db files
       rpc:            db files

       netgroup:       nis

SEE ALSO

   systemd(1), systemd.exec(5), nss-resolve(8), nss-myhostname(8), nss-
   mymachines(8), nsswitch.conf(5), getent(1)

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