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-'\" t
-.\" Title: newgidmap
-.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
-.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
-.\" Date: 05/09/2014
-.\" Manual: User Commands
-.\" Source: shadow-utils 4.2.1
-.\" Language: English
-.\"
-.TH "NEWGIDMAP" "1" "05/09/2014" "shadow\-utils 4\&.2\&.1" "User Commands"
-.\" -----------------------------------------------------------------
-.\" * Define some portability stuff
-.\" -----------------------------------------------------------------
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.\" http://bugs.debian.org/507673
-.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.ie \n(.g .ds Aq \(aq
-.el .ds Aq '
-.\" -----------------------------------------------------------------
-.\" * set default formatting
-.\" -----------------------------------------------------------------
-.\" disable hyphenation
-.nh
-.\" disable justification (adjust text to left margin only)
-.ad l
-.\" -----------------------------------------------------------------
-.\" * MAIN CONTENT STARTS HERE *
-.\" -----------------------------------------------------------------
-.SH "NAME"
-newgidmap \- set the gid mapping of a user namespace
-.SH "SYNOPSIS"
-.HP \w'\fBnewgidmap\fR\ 'u
-\fBnewgidmap\fR \fIpid\fR \fIgid\fR \fIlowergid\fR \fIcount\fR [\fIpid\fR\ \fIgid\fR\ \fIlowergid\fR\ \fIcount\fR\ [\ \fI\&.\&.\&.\fR\ ]]
-.SH "DESCRIPTION"
-.PP
-The
-\fBnewgidmap\fR
-sets
-/proc/[pid]/gid_map
-based on it\*(Aqs command line arguments and the gids allowed in
-/etc/subgid\&.
-.PP
-After the pid argument,
-\fBnewgidmap\fR
-expects sets of 3 integers:
-.PP
-gid
-.RS 4
-Begining of the range of GIDs inside the user namespace\&.
-.RE
-.PP
-lowergid
-.RS 4
-Begining of the range of GIDs outside the user namespace\&.
-.RE
-.PP
-count
-.RS 4
-Length of the ranges (both inside and outside the user namespace)\&.
-.RE
-.PP
-\fBnewgidmap\fR
-verifies that the caller is the owner of the process indicated by
-\fBpid\fR
-and that for each of the above sets, each of the GIDs in the range [lowergid, lowergid+count] is allowed to the caller according to
-/etc/subgid
-before setting
-/proc/[pid]/gid_map\&.
-.PP
-Note that newgidmap may be used only once for a given process\&.
-.SH "OPTIONS"
-.PP
-There currently are no options to the
-\fBnewgidmap\fR
-command\&.
-.SH "FILES"
-.PP
-/etc/subgid
-.RS 4
-List of users subordinate group IDs\&.
-.RE
-.PP
-/proc/[pid]/gid_map
-.RS 4
-Mapping of gids from one between user namespaces\&.
-.RE
-.SH "SEE ALSO"
-.PP
-\fBlogin.defs\fR(5),
-\fBnewusers\fR(8),
-\fBsubgid\fR(5),
-\fBuseradd\fR(8),
-\fBuserdel\fR(8),
-\fBusermod\fR(8)\&.