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SUBUID(5) File Formats and Conversions SUBUID(5)

NAME

subuid - the subordinate uid file

DESCRIPTION

Each line in /etc/subuid contains a user name and a range of subordinate user ids that user is allowed to use. This is specified with three fields delimited by colons (“:”). These fields are:
•login name
•numerical subordinate user ID
•numerical subordinate user ID count
This file specifies the user IDs that ordinary users can use, with the newuidmap command, to configure uid mapping in a user namespace.
Multiple ranges may be specified per user.

FILES

/etc/subuid
Per user subordinate user IDs.
/etc/subuid-
Backup file for /etc/subuid.

SEE ALSO

login.defs(5), newgidmap(1), newuidmap(1), newusers(1), subgid(5), useradd(8), userdel(8), usermod(8), user_namespaces(7).
05/17/2017 shadow-utils 4.2