Server : Apache System : Linux server2.corals.io 4.18.0-348.2.1.el8_5.x86_64 #1 SMP Mon Nov 15 09:17:08 EST 2021 x86_64 User : corals ( 1002) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory :  /proc/self/root/proc/thread-self/root/usr/lib/python3.6/site-packages/sepolicy/help/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

SELinux can either setup labeling directory using the Application/files screen, or you can setup file equivalence.


File Equivalence allows an administrator to label entire directory trees as the same way as the Equivalence directory tree.

Use Case 1:
An administrator want to store his Apache root content in a location other then /var/www like /srv/www. He could define an equivalence between /srv/www and /var/www.

libselinux reads the equivalence rules and does the substitution when ever the matchpathcon function is called.  Tools like restorecon/rpm/udev and others will all follow the substitution.  Using the example above when matchpathcon is handed /srv/www/cgi-bin/myscript.cgi, it substitutes /var/www for /svr/www and looks up the context of /var/www/cgi-bin/myscript.cgi.

In the command line you could execute.

# semanage fcontext -a -e /var/www /srv/www

Another common case where you might want to use file equivalence, is if you put your users home directories in a location other then /home.

If you setup an equivalence between /home and /export/home

# matchpathcon /export/home/dwalsh/.ssh
/export/home/dwalsh/.ssh    unconfined_u:object_r:home_ssh_t:s0