Re: is root realy root ?

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On Sat, Jan 21, 2023 at 11:49:05PM -0000, old sixpack13 wrote:

ls -laZ
total 20
dr-xr-x---. 1 root root system_u:object_r:admin_home_t:s0       154 22. Jan 00:17 .
dr-xr-xr-x. 1 root root system_u:object_r:root_t:s0             138 15. Dez 00:48 ..
-rw-------. 1 root root unconfined_u:object_r:admin_home_t:s0  3180 22. Jan 00:00 .bash_history
-rw-r--r--. 1 root root system_u:object_r:admin_home_t:s0        18 23. Jul 2022  .bash_logout
-rw-r--r--. 1 root root system_u:object_r:admin_home_t:s0       141 23. Jul 2022  .bash_profile
-rw-r--r--. 1 root root system_u:object_r:admin_home_t:s0       429 23. Jul 2022  .bashrc
drwx------. 1 root root system_u:object_r:cache_home_t:s0         6 22. Jan 00:08 .cache
drwx------. 1 root root unconfined_u:object_r:config_home_t:s0   30 21. Jan 23:44 .config
drwx------. 1 root root unconfined_u:object_r:dbus_home_t:s0     22 17. Sep 15:40 .dbus
-rw-------. 1 root root unconfined_u:object_r:admin_home_t:s0    20 22. Jan 00:17 .lesshst
drwx------. 1 root root unconfined_u:object_r:gconf_home_t:s0    10 10. Sep 20:15 .local

I'm completely unexperienced with selinux, but shouldn't I be able to delete .cache cause I own the dir and have write permission ?

Your idea is reasonable. To be able to modify a file you need "w" permission on that file. HOWEVER, removing a file is not considered
to be modifying THAT file.  It is modifying the directory which
contains the file.

Note that if there was another hard link to the file in a different
directory, the file is not modified  Contents remain, link count
drops.  But the containing directory is modified, it loses an entry.

You have write permission on .cache, but not on ".", the containing directory. So you can modify the contents of .cache, not "."


--
Jon H. LaBadie                  jonfu@xxxxxxxxxx
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