subgid(5)

NAME

   subgid - the subordinate gid file

DESCRIPTION

   Each line in /etc/subgid contains a user name and a range of
   subordinate group ids that user is allowed to use. This is specified
   with three fields delimited by colons (":"). These fields are:

   *   login name

   *   numerical subordinate group ID

   *   numerical subordinate group ID count

   This file specifies the group IDs that ordinary users can use, with the
   newgidmap command, to configure gid mapping in a user namespace.

   Multiple ranges may be specified per user.

FILES

   /etc/subgid
       Per user subordinate group IDs.

   /etc/subgid-
       Backup file for /etc/subgid.

SEE ALSO

   login.defs(5), newgidmap(1), newuidmap(1), newusers(8), subuid(5),
   useradd(8), userdel(8), usermod(8), user_namespaces(7).

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