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虚拟主机设置后 Apache 无法启动（CentOS7）

tag-icon • tag-icon apache-2.4 virtualhost subdomain centos7
虚拟主机设置后 Apache 无法启动（CentOS7）

我按照示例设置了虚拟主机文件/etc/httpd/conf.d/vhost.com.conf，并多次检查我的文件和地址

<VirtualHost *:80>
  ServerName www.vhost.com
  ServerAlias vhost.com
  DocumentRoot /var/www/html/vhost.com/public_html/
  ErrorLog /var/www/html/vhost.com/logs/error.log
  CustomLog /var/www/html/vhost.com/logs/access.log combined
</VirtualHost>

但是我的 Apache 没有启动并显示以下错误：

[seconduser@VPS- ~]$ sudo systemctl status httpd.service -l
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Sun 2016-07-03 11:44:58 IRDT; 54s ago
     Docs: man:httpd(8)
           man:apachectl(8)
  Process: 7214 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)
  Process: 7212 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
 Main PID: 7212 (code=exited, status=1/FAILURE)

Jul 03 11:44:58 VPS- systemd[1]: Starting The Apache HTTP Server...
Jul 03 11:44:58 VPS- httpd[7212]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using fe80::250:56ff:fea3:6805. Set the 'ServerName' directive globally to suppress this message
Jul 03 11:44:58 VPS- systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
Jul 03 11:44:58 VPS- kill[7214]: kill: cannot find process ""
Jul 03 11:44:58 VPS- systemd[1]: httpd.service: control process exited, code=exited status=1
Jul 03 11:44:58 VPS- systemd[1]: Failed to start The Apache HTTP Server.
Jul 03 11:44:58 VPS- systemd[1]: Unit httpd.service entered failed state.
Jul 03 11:44:58 VPS- systemd[1]: httpd.service failed.

一旦我删除vhost.com.conf一切，就会恢复正常，服务器会在另一个配置中再次运行，我将此代码添加到我的vhost.com.conf：

<VirtualHost *:80>
  ServerName www.vhost.com
  ServerAlias vhost.com
  DocumentRoot /var/www/vhost.com/public_html/
  ErrorLog /var/www/vhost.com/logs/error.log
  CustomLog /var/www/vhost.com/logs/access.log combined
</VirtualHost>

并发送此命令sudo chmod -R 755 /var/www，sudo chown -R apache:apache /var/www/html/www.vhost.com我不知道它们做什么，我只是在互联网上看到它们。

编辑- 我检查了我的错误日志/var/log/httpd/error_log并收到此错误：(13)Permission denied: AH00091: httpd: could not open error log file /var/www/vhost.com/logs/error.log. AH00015: Unable to open logs我该怎么办？

我这样做是因为我需要分离我的子域名。

答案1

您可能没有在 conf/httpd.conf 中启用 NameVirtualHost *:80 行

如果您正在使用端口 443，您可能还想为端口 443 添加一行。

以下命令是你的朋友：

apachectl configtest
httpd -S
ls -ltr /var/log/httpd

last 命令将显示按修改时间排序的日志目录；最近的在最后。当您不知道应该在哪个文件中找到信息时很有用。

答案2

这

Jul 03 11:44:58 VPS- httpd[7212]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using fe80::250:56ff:fea3:6805. Set the 'ServerName' directive globally to suppress this message

表示您没有在 中设置 ServerName /etc/httd/http.conf。取消注释行 Servername，并将其设置为ServerName localhost或服务器的 fqdn。

答案3

您应用了非常没有安全感 sudo chmod -R 755 /var/www权限到您想要的日志目录，但仍然收到以下权限被拒绝错误：

(13)Permission denied: AH00091: httpd: could not open error log file /var/www/vhost.com/logs/error.log.
AH00015: Unable to open logs

这很可能是因为 SELinux 拒绝访问造成的。Red Hat 7 手册提供了相当不错的分步指南，可帮助您确定 SELinux 是否确实是原因，以及如何解决 SELinux AVC 拒绝问题：https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/SELinux_Users_and_Administrators_Guide/chap-Security-Enhanced_Linux-Troubleshooting.html

简而言之，您可能需要执行以下操作：

sudo chcon -t httpd_log_t /var/www/vhost.com/logs /var/www/vhost.com/logs/*

将日志目录标记为日志的 apache 目标。

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