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Full Discussion: Limiting access to postqueue
Top Forums UNIX for Advanced & Expert Users Limiting access to postqueue Post 302718995 by jim mcnamara on Sunday 21st of October 2012 07:45:43 PM
Old 10-21-2012
postqueue is a setgid program , that is why non-priv users can see things.

If you want it to run ONLY for root, then as root
IMPORTANT - write down output of
Code:
ls -l postqueue

in case something goes wrong so you can revert.
Code:
chown root:[postfix user group for your system]
chmod 2750 postqueue.

the 2xxx makes the file setgid, 7 is for the owner (root) and 5 is r-x for the group.

Next be sure no regular users are in the postifx group.
 

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console.perms(5)					   System Administrator's Manual					  console.perms(5)

NAME
console.perms - permissions control file for users at the system console DESCRIPTION
/etc/security/console.perms determines the permissions that will be given to priviledged users of the console at login time, and the per- missions to which to revert when the users log out. It is read by the pam_console module. The format is: <class>=space-separated list of words login-regexp|<login-class> perm dev-glob|<dev-class> revert-mode revert-owner[.revert-group] The revert-mode, revert-owner, and revert-group fields are optional, and default to 0600, root, and root, respectively. The words in a class definition are evaluated as globs if they refer to files, but as regular expressions if they apply to a console defi- nition. Do not mix them. Any line can be broken and continued on the next line by using a character as the last character on the line. The login-class class and the login-regexp word are evaluated as regular expressions. The dev-class and the dev-glob word are evaluated as shell-style globs. If a name given corresponds to a directory, and if it is a mount point listed in /etc/fstab, the device node associated with the filesystem mounted at that point will be substituted in its place. Classes are denoted by being contained in < angle bracket > characters; a lack of < angle brackets > indicates that the string is to be taken literally as a login-regexp or a dev-glob, depending on its input position. SEE ALSO
pam_console(8) pam_console_apply(8) console.apps(5) AUTHOR
Michael K. Johnson <johnsonm@redhat.com> Red Hat Software 1999/2/3 console.perms(5)
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