SUBGIDSection: File Formats and Conversions (5)
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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 (":"). 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.
- Per user subordinate group IDs.
- Backup file for /etc/subgid.
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