php-fpm 系統單元文件 路徑： /usr/lib/systemd/system/phpfpm-8.1.service ## 自定義范例 ```conf # /usr/lib/systemd/system/phpfpm-8.1.service [Unit] Description=The PHP 8.1 FastCGI Process Manager Wants=mariadb.service Wants=nginx.service Wants=redis.service After=network.target [Service] Type=simple PIDFile=/server/run/php/phpfpm-8.1.pid ExecStart=/server/php/8.1/sbin/php-fpm --nodaemonize --fpm-config /server/php/8.1/etc/php-fpm.conf ExecReload=/bin/kill -USR2 $MAINPID PrivateTmp=true 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 ``` ## 官方提供參考 ```conf # It's not recommended to modify this file in-place, because it # will be overwritten during upgrades. If you want to customize, # the best way is to use the "systemctl edit" command. [Unit] Description=The PHP FastCGI Process Manager After=network.target [Service] Type=simple PIDFile=/server/php/8.1/var/run/php-fpm.pid ExecStart=/server/php/8.1/sbin/php-fpm --nodaemonize --fpm-config /server/php/8.1/etc/php-fpm.conf ExecReload=/bin/kill -USR2 $MAINPID # Set up a new file system namespace and mounts private /tmp and /var/tmp directories # so this service cannot access the global directories and other processes cannot # access this service's directories. PrivateTmp=true # Mounts the /usr, /boot, and /etc directories read-only for processes invoked by this unit. ProtectSystem=full # Sets up a new /dev namespace 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. PrivateDevices=true # Explicit module loading will be denied. This allows to turn off module load and unload # operations on modular kernels. It is recommended to turn this on for most services that # do not need special file systems or extra kernel modules to work. ProtectKernelModules=true # Kernel variables accessible through /proc/sys, /sys, /proc/sysrq-trigger, /proc/latency_stats, # /proc/acpi, /proc/timer_stats, /proc/fs and /proc/irq will be made read-only to all processes # of the unit. Usually, tunable kernel variables should only be written at boot-time, with the # sysctl.d(5) mechanism. Almost no services need to write to these at runtime; it is hence # recommended to turn this on for most services. ProtectKernelTunables=true # The Linux Control Groups (cgroups(7)) hierarchies accessible through /sys/fs/cgroup will be # made read-only to all processes of the unit. Except for container managers no services should # require write access to the control groups hierarchies; it is hence recommended to turn this on # for most services ProtectControlGroups=true # Any attempts to enable realtime scheduling in a process of the unit are refused. RestrictRealtime=true # Restricts the set of socket address families accessible to the processes of this unit. # Protects against vulnerabilities such as CVE-2016-8655 RestrictAddressFamilies=AF_INET AF_INET6 AF_NETLINK AF_UNIX # Takes away the ability to create or manage any kind of namespace RestrictNamespaces=true [Install] WantedBy=multi-user.target ```