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Full Discussion: bin group strange permissions
Operating Systems AIX bin group strange permissions Post 302250175 by dgaixsysadm on Wednesday 22nd of October 2008 08:27:43 PM
Old 10-22-2008
bin group strange permissions
I was doing a little playing around with permissions on a 5.3 box in the office and wanted to make it so that it does not take root permission to delete a users home directory once they are deactivated or deleted in smit.
the default permissions are 755 with bin as both user and group
I noticed that if i change the permissions to 775 and give a typical user group membership in bin he can not delete a file in that folder.
I noticed also that if i change the group ownership of the directory to staff, (which my user also has membership) folders contained inside I can delete.

is there something special about the bin group that would prevent even a user who has group membership from being able to take advantage of them when bin is the group owner of the folder?
 

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LEARN ABOUT DEBIAN

cgcreate

CGCREATE(1)							 libcgroup Manual						       CGCREATE(1)

NAME

       cgcreate - create new cgroup(s)

SYNOPSIS

       cgcreate [-h] [-s] [-t <tuid>:<tgid>] [-a <agid>:<auid>] [-f mode] [-d mode] -g <controllers>:<path> [-g ...]

DESCRIPTION

       The command creates new cgroup(s) defined by the options -g.

       -a <agid>:<auid>
	      defines  the  name of the user and the group which own the rest of the defined control group's files. These users are allowed to set
	      subsystem parameters and create subgroups.  The default value is the same as has the parent cgroup.

       -d, --dperm=mode
	      sets the permissions of a control groups directory.  The permissions needs to be specified as octal numbers e.g.	-d 775.

       -f, --fperm=mode
	      sets the permissions of the control groups parameters.  The permissions needs to be specified as octal numbers e.g.   -f	775.   The
	      value  is  not  used as given because the current owner's permissions are used as an umask (so 777 will set group and others permis-
	      sions to the owners permissions).

       -g <controllers>:<path>
	      defines control groups to be added.  controllers is a list of controllers and path is the relative path to  control  groups  in  the
	      given controllers list. This option can be specified multiple times.

       -h, --help
	      display this help and exit

       -s, --tperm=mode
	      sets  the  permissions  of  the control group tasks file.  The permissions needs to be specified as octal numbers e.g.  -f 775.  The
	      value is not used as given because the current owner's permissions are used as an umask (so 777 will set group  and  others  permis-
	      sions to the owners permissions).

       -t <tuid>:<tgid>
	      defines  the  name of the user and the group, which owns tasks file of the defined control group. I.e. this user and members of this
	      group have write access to the file.  The default value is the same as has the parent cgroup.

FILES

SEE ALSO

       cgrules.conf (5) cgexec (1) cgclassify (1)

Linux								    2009-03-15							       CGCREATE(1)
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