CentOS 7.4 添加 Apache 开机启动

本文介绍在 CentOS 7.4 系统中，将 Apache 服务添加到开机启动项中。

设置开机启动 Apache 服务，执行命令：

systemctl enable httpd.service

出现错误：

[root@123si ~]# systemctl enable httpd.service
httpd.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig httpd on
service httpd does not support chkconfig

解决办法：

使用vi命令，编辑vi /etc/rc.d/init.d/httpd文件，在#!/bin/sh下面添加，如下。

#chkconfig: 2345 10 90
#description: Activates/Deactivates Apache Web Server

加上上面这两行就可以，必须带井号（#）。

其中：2345 是设为要启动的运行级别，10 是启动优先级，90 是结束进程的优先级，谁优先谁先挂的意思。

最终效果：

[root@123si ~]# cat /etc/rc.d/init.d/httpd
#!/bin/sh
#chkconfig: 2345 10 90
#description: Activates/Deactivates Apache Web Server
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
......

（完）