Source — /etc/systemd/system/multi-user.target.wants/php8.3-fpm.service

/etc/systemd/system/multi-user.target.wants/php8.3-fpm.service

[Unit]
Description=The PHP 8.3 FastCGI Process Manager
Documentation=man:php-fpm8.3(8)
After=network.target

[Service]
Type=notify
ExecStart=/usr/sbin/php-fpm8.3 --nodaemonize --fpm-config /etc/php/8.3/fpm/php-fpm.conf
ExecStartPost=-/usr/lib/php/php-fpm-socket-helper install /run/php/php-fpm.sock /etc/php/8.3/fpm/pool.d/www.conf 83
ExecStopPost=-/usr/lib/php/php-fpm-socket-helper remove /run/php/php-fpm.sock /etc/php/8.3/fpm/pool.d/www.conf 83
ExecReload=/bin/kill -USR2 $MAINPID
Restart=on-failure
ProtectSystem=full
PrivateDevices=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectControlGroups=true
RestrictRealtime=true
RestrictAddressFamilies=AF_INET AF_INET6 AF_NETLINK AF_UNIX
RestrictNamespaces=true

[Install]
WantedBy=multi-user.target