Centos7.4脚本/etc/init.d/nginx一直报错，搜索发现Centos7服务管理有区别以前的版本，解决问题的心情是这样的：
好了，开始正文～^ – ^～
在服务器上安装好了Nginx, 这里安装目录prefix=/usr/local/nginx, 我们可以直接用下面的命令来管理
# 启动 /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf # 重新加载 /usr/local/nginx/sbin/nginx -s reload # 停止 /usr/local/nginx/sbin/nginx -s stop
我们知道这样管理很不方便，一般都使用Nginx Init Script来管理，这里说的一般是在Centos6以下版本中，而Centos7中就有两种方式来管理Nginx服务。
一、通过Systemd来管理
0、新建文件/lib/systemd/system/nginx.service.
1、写入内容，内容模版参考官网NGINX systemd service file
2、修改nginx安装路径, 修改后的示例如下
[Unit] Description=nginx - high performance web server Documentation=http://nginx.org/en/docs/ After=network.target remote-fs.target nss-lookup.target [Service] Type=forking PIDFile=/usr/local/nginx/logs/nginx.pid ExecStartPre=/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf ExecReload=/bin/kill -s HUP $MAINPID ExecStop=/bin/kill -s QUIT $MAINPID PrivateTmp=true [Install] WantedBy=multi-user.target
3、增加执行权限
chmod +x /usr/lib/systemd/system/nginx.service
4、加入开启启动
systemctl enable nginx.service
5、Nginx服务管理
# Nginx启动 systemctl start nginx.service # Nginx状态查看 systemctl status nginx.service # Nginx重载 systemctl reload nginx.service # Nginx停止 systemctl stop nginx.service # Nginx重新启动 systemctl restart nginx.service
6、Nginx启动日志查看
journalctl -f -u nginx.service
7、常见错误
systemctl start nginx提示
Job for nginx.service failed because the control process exited with error code. See “systemctl status nginx.service” and “journalctl -xe” for details
查看错误日志如下，发现80端口被占用了, 查看占用这个端口的进程(netstat -anlp | grep 80)，停止就好了
8、运行状态查看
二、使用Nginx Init Script来管理
Centos7.4上想通过Nginx Init Script来管理Nginx, 首先需要配置好systemd，也就是通过方式一可以管理，Centos6.5并不需要
0、新建Init脚本/etc/init.d/nginx
1、脚本内容参考Nginx官网，Red Hat NGINX Init Script，注意修改nginx安装目录和pid路径
2、添加执行权限
chmod +x /etc/init.d/nginx
3、运行
/etc/init.d/nginx status /etc/init.d/nginx start /etc/init.d/nginx reload /etc/init.d/nginx restart /etc/init.d/nginx stop
4、添加到服务
chkconfig --add nginx
5、通过服务来管理
service nginx status service nginx start service nginx reload service nginx restart service nginx stop
6、常见错误
执行/etc/init.d/nginx status提示failed
/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled
解决：检查/usr/lib/systemd/system/nginx.service是否存在并配置，执行systemctl start nginx
7、重启示例
8、运行状态查看示例同方式一第8条
8、本服务器上脚步示例
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /etc/sysconfig/nginx
# pidfile: /var/run/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
start() {
[ -x $nginx ] || exit 5
[ -f $NGINX_CONF_FILE ] || exit 6
echo -n $"Starting $prog: "
/usr/local/bin/nginxd
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog -TERM
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
configtest || return $?
stop
sleep 1
start
}
reload() {
configtest || return $?
echo -n $"Reloading $prog: "
killproc $nginx -HUP
RETVAL=$?
echo
}
force_reload() {
restart
}
configtest() {
$nginx -t -q -c $NGINX_CONF_FILE
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart|configtest)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit 2
esac