PAM_SETQUOTA(8) Linux-PAM Manual PAM_SETQUOTA(8)
NAME
pam_setquota - PAM module to set or modify disk quotas on session start
SYNOPSIS
pam_setquota.so [fs=/home] [overwrite=0] [debug=0] [startuid=1000]
[enduid=0] [bsoftlimit=19000] [bhardlimit=20000]
[isoftlimit=3000] [ihardlimit=4000]
DESCRIPTION
pam_setquota is a PAM module to set or modify a disk quota at session
start
This makes quotas usable with central user databases, such as MySQL or
LDAP.
OPTIONS
fs=/home
The device file or mountpoint the policy applies to. Defaults to
the filesystem containing the users home directory.
overwrite=0
Overwrite an existing quota. Note: Enabling this will remove the
ability for the admin to manually configure different quotas for
users for a filesystem with edquota(8). (Defaults to 0)
debug=0
Enable debugging. A value of 1 outputs the old and new quota on a
device. A value of 2 also prints out the matched and found
filesystems should fs be unset. (Defaults to 0)
startuid=1000
Describe the start of the UID range the policy is applied to.
(Defaults to UID_MIN from login.defs or the uidmin value defined at
compile-time if UID_MIN is undefined.)
enduid=0
Describe the end of the UID range the policy is applied to. Setting
enduid=0 results in an open-ended UID range (i.e. all uids greater
than startuid are included). (Defaults to 0)
bsoftlimit=19000
Soft limit for disk quota blocks, as defined by quotactl(2). Note:
bsoftlimit and bhardlimit must be set at the same time!
bhardlimit=20000
Hard limit for disk quota blocks, as defined by quotactl(2). Note:
bsoftlimit and bhardlimit must be set at the same time!
isoftlimit=3000
Soft limit for inodes, as defined by
quotactl(2). Note: isoftlimit and ihardlimit must be set at the
same time!
ihardlimit=4000
Hard limit for inodes, as defined by
quotactl(2). Note: isoftlimit and ihardlimit must be set at the
same time!
MODULE TYPES PROVIDED
Only the session module type is provided.
RETURN VALUES
PAM_SUCCESS
The quota was set successfully.
PAM_IGNORE
No action was taken because either the UID of the user was outside
of the specified range, a quota already existed and overwrite=1 was
not configured or no limits were configured at all.
PAM_USER_UNKNOWN
The user was not found.
PAM_PERM_DENIED
/proc/mounts could not be opened.
The filesystem or device specified was not found.
The limits for the user could not be retrieved. See syslog for more
information.
The limits for the user could not be set. See syslog for more
information.
Either isoftlimit/ihardlimit or bsoftlimit/bhardlimit were not set
at the same time.
EXAMPLES
A single invocation of `pam_setquota` applies a specific policy to a
UID range. Applying different policies to specific UID ranges is done
by invoking pam_setquota more than once. The last matching entry
defines the resulting quota.
session required pam_setquota.so bsoftlimit=1000 bhardlimit=2000 isoftlimit=1000 ihardlimit=2000 startuid=1000 enduid=0 fs=/home
session required pam_setquota.so bsoftlimit=19000 bhardlimit=20000 isoftlimit=3000 ihardlimit=4000 startuid=2001 enduid=3000 fs=/dev/sda1
session required pam_setquota.so bsoftlimit=19000 bhardlimit=20000 isoftlimit=3000 ihardlimit=4000 startuid=3001 enduid=4000 fs=/dev/sda1 overwrite=1
SEE ALSO
pam.conf(5), pam.d(5), pam(8)
AUTHOR
pam_setquota was originally written by Ruslan Savchenko
<savrus@mexmat.net>.
Further modifications were made by Shane Tzen <shane@ict.usc.edu>, Sven
Hartge <sven@svenhartge.de> and Keller Fuchs <kellerfuchs@hashbang.sh>.
Linux-PAM Manual 09/03/2021 PAM_SETQUOTA(8)
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