Title: subgid Author: [FIXME: author] [see http://docbook.sf.net/el/author] Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/> Date: 08/20/2017 Manual: File Formats and Conversions Source: shadow-utils 4.2 Language: English
NAMEsubgid - the subordinate gid file
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 (lq:rq). 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.
- Per user subordinate group IDs.
- Backup file for /etc/subgid.