Hello, I would like to propose to harden nginx.service with systems configurations, and this change uses PrivateDevices=yes, PrivateTmp=yes and ProtectSystem=full configs. And here are excerpts from man systemd.exec man page.
PrivateDevices=yes sets up a new /dev mount for the executed processes and only adds API pseudo devices such as /dev/null, /dev/zero or /dev/random (as well as the pseudo TTY subsystem) to it, but no physical devices such as /dev/sda, system memory /dev/mem, system ports /dev/port and others PrivateTmp=yes sets up a new file system namespace for the executed processes and mounts private /tmp and /var/tmp directories inside it that is not shared by processes outside of the namespace ProtectSystem=full mounts the /usr and /boot directories read-only for processes invoked by this unit. If set to "full", the /etc directory is mounted read-only, too I believe that these configs will harden nginx.service, thus protect OS from security bugs in nginx. https://www.freedesktop.org/software/systemd/man/systemd.exec.html
nginx.service.patch
Description: Binary data
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