11-04-2001
The su program needs to have its effective uid set to zero as it runs. Changing the permissions to 550 creates an su program that only root can use. You need to do:
chmod 4550 su
if you're going to do this. And you could create a wheel group while you're at it. This is how bsd did it. They just create the wheel group, set the su program to be group wheel and the mode to be 4550.
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LEARN ABOUT DEBIAN
pure-quotacheck
pure-quotacheck(8) Pure-FTPd pure-quotacheck(8)
NAME
pure-quotacheck - Update virtual quota files for Pure-FTPd
SYNTAX
pure-quotacheck -u username/gid -d home directory [-g group/gid]
DESCRIPTION
pure-quotacheck create a .ftpquota file in the specified directory.
This file contains the current file and size of the directory, and it is used by Pure-FTPd when virtual quotas are enabled.
It's recommended to periodically run pure-quotacheck for every user, in crontabs.
OPTIONS
-d <directory>
Scans the specified <directory>.
-g <group or gid>
Sets the group files will be scanned as. This is optional : if a user name is passed to -u</fR>, group are automatically retrieved.
-u <user or uid>
Set the user name files will be scanned as. This is mandatory, and it can't be "root".
-h Output usage information and exit.
FILES
.ftpquota
EXAMPLES
To run this program the standard way type:
pure-quotacheck -u john -d /home/john
AUTHORS
Frank DENIS <j at pureftpd dot org>
SECURITY
pure-quotacheck switches real and effective uids/gids as soon as possible. Root privileges are never given back.
pure-quotacheck refuses to scan directories with uid = 0 (root) or gid = 0 (wheel/root) .
pure-quotacheck performs a chroot() call to the home directory. It never traverses parent directories.
pure-quotacheck only scans real files (no socket, no pipe, etc) .
pure-quotacheck enforces read access on directories to prevent against people doing chmod 0 before a quota scan.
pure-quotacheck enforces write access on the home directory to properly write the .ftpquota file.
pure-quotacheck never scans the same inode/device pair twice.
SEE ALSO
ftp(1), pure-ftpd(8) pure-ftpwho(8) pure-mrtginfo(8) pure-uploadscript(8) pure-statsdecode(8) pure-pw(8) pure-quotacheck(8) pure-authd(8)
RFC 959, RFC 2228, RFC 2389 and RFC 2428.
Pure-FTPd team 1.0.36 pure-quotacheck(8)