Centos7.4服务器安装apache及安装过程出现的问题解决方法
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
#rpm -qa | grep httpd
2. 使用yum安装(自动安装依赖包),简单方便
#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
#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
#cp /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.bak
5. 启动Apache服务
#systemctl start httpd.service
6. 开机自动启动Apache服务
#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
#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
#systemctl status httpd.service
[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
vi /etc/httpd/conf/httpd.conf
② ./ServerName 查找ServerName
#ServerName www.example.com:80
将其前面的#去掉
:wq保存并退出
③ .重启服务
systemctl restart httpd.service
希望本文所述对大家CentOS服务器配置有所帮助。
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