5. File formats and conventions eg /etc/passwd

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SUBGID

Section: File Formats and Conversions (5)
Updated: 03/26/2019
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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).


 

Index

NAME
DESCRIPTION
FILES
SEE ALSO

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