[HEADS UP] Default value of SELinux boolean httpd_graceful_shutdown will changed.

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I'm planning change the default value of httpd_graceful_shutdown boolean in Fedora Rawhide because of improving SELinux configuration. Rawhide builds with this change will be available in ~5 days.

Together with Dan Walsh, we agreed on that httpd_graceful_shutdown boolean should be by default turned off. This boolean allows HTTPD to connect to port 80 for graceful shutdown, but it's breaking the functionality of another boolean called: httpd_can_network_connect. This boolean allows HTTPD scripts and modules to connect to the network using TCP and it's turned off by default.

Turning this boolean off can cause some troubles, on web-servers where processes with httpd_t SELinux domain connecting to tcp ports: 80, 81, 443, 488, 8008, 8009, 8443, 9000

If you would like to turn in on again, use semanage command:
# semanage boolean -m --on httpd_graceful_shutdown

If you have any questions, feel free to contact me.
Lukas.

--
Lukas Vrabec
Software Engineer, Security Technologies
Red Hat, Inc.
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