了Centos7.4服务器安装apache

本文实例讲述了Centos7.4服务器安装apache及安装过程出现的问题解决方法。分享给大家供大家参考，具体如下：

一、安装httpd

1. 安装之前，先查看系统中是否存在已经安装了的httpd.rpm包，如果，没有就是没安装，有的话rpm -e 对应的rpm包名进行删除

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1	#rpm -qa | grep httpd

2. 使用yum安装(自动安装依赖包),简单方便

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1	#yum -y install httpd

3. 安装成功后，httpd-v 查看安装的apache版本，查找apache的配置文件位置

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1	#find / -name "httpd.conf"

4. 将找到的源配置文件备份一份，防止错误后无法恢复

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1	#cp /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.bak

5. 启动Apache服务

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1	#systemctl start httpd.service

6. 开机自动启动Apache服务

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1 2	#systemctl enable httpd.service 开机自启httpd #systemctl disable httpd.service 开机不启动httpd

7. 查看httpd的状态

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1	#systemctl status httpd.service

二、安装过程出现的问题

1. Apache启动失败，Job for httpd.service failed because the control process exited with error code. See “systemctl status httpd.service” and “journalctl -xe” for details

执行命令,查看报错提示

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1	#systemctl status httpd.service

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[root@cloud1 bin]# systemctl status httpd.service   httpd.service - The Apache HTTP Server   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)   Active: failed (Result: exit-code) since 五 2018-11-26 11:13:09 CST; 6min ago    Docs: man:httpd(8)       man:apachectl(8)  Process: 9915 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)  Process: 9913 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)  Main PID: 9913 (code=exited, status=1/FAILURE) 11月 26 11:13:09 cloud1.localdomain httpd[9913]: (98)Address already in use: AH00072: make_sock: could not bind to address [::]:80 11月 26 11:13:09 cloud1.localdomain httpd[9913]: (98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80 11月 26 11:13:09 cloud1.localdomain httpd[9913]: no listening sockets available, shutting down 11月 26 11:13:09 cloud1.localdomain httpd[9913]: AH00015: Unable to open logs 11月 26 11:13:09 cloud1.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE 11月 26 11:13:09 cloud1.localdomain kill[9915]: kill: cannot find process "" 11月 26 11:13:09 cloud1.localdomain systemd[1]: httpd.service: control process exited, code=exited status=1 11月 26 11:13:09 cloud1.localdomain systemd[1]: Failed to start The Apache HTTP Server. 11月 26 11:13:09 cloud1.localdomain systemd[1]: Unit httpd.service entered failed state. 11月 26 11:13:09 cloud1.localdomain systemd[1]: httpd.service failed.

问题是80端口被占用

解决办法：

查看80端口的使用情况

① .netstat -lnp|grep 80

tcp        0      0 192.168.180.68:61027        0.0.0.0:*                   LISTEN      6289/oproxyd
tcp        0      0 :::80                       :::*                        LISTEN      846/httpd
tcp        0      0 ::ffff:192.168.180.68:7001 :::*                        LISTEN      32015/java

杀掉占用80端口的进程

② .kill -9 846

③ .若是前两个方法不行的话，则重启后再启动httpd服务

2.Apache启动失败，httpd：httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain for ServerName

① .进入apache的配置文件

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1	vi /etc/httpd/conf/httpd.conf

② ./ServerName 查找ServerName

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1	#ServerName www.example.com:80

将其前面的#去掉

:wq保存并退出

③ .重启服务

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1	systemctl restart httpd.service

希望本文所述对大家CentOS服务器配置有所帮助。