阿帕奇突然不行了

Question

我在Xubuntu16.04上的apache在从冬眠中醒来后无法工作。重新启动没有帮助。当我尝试重新启动时，我会得到以下消息：

apache2.service的作业失败，因为控制进程退出时带有错误代码。有关详细信息，请参阅"systemctl状态apache2.service“和”日记-xe“。

尝试systemctl status apache2.service返回

apache2.service - LSB: Apache2 web server
   Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
  Drop-In: /lib/systemd/system/apache2.service.d
           └─apache2-systemd.conf
   Active: failed (Result: exit-code) since Sa 2016-08-20 21:24:49 CEST; 6min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 6005 ExecStart=/etc/init.d/apache2 start (code=exited, status=1/FAILURE)

Aug 20 21:24:49 johndoe apache2[6005]: Output of config test was:
Aug 20 21:24:49 johndoe apache2[6005]: [Sat Aug 20 21:24:49.248413 2016] [core:crit] [pid 6015] (EAI 2)Name or service not known: AH00077: alloc_listener: failed to set up sockaddr for localhost
Aug 20 21:24:49 johndoe apache2[6005]: AH00526: Syntax error on line 5 of /etc/apache2/ports.conf:
Aug 20 21:24:49 johndoe apache2[6005]: Listen setup failed
Aug 20 21:24:49 johndoe apache2[6005]: Action 'configtest' failed.
Aug 20 21:24:49 johndoe apache2[6005]: The Apache error log may have more information.
Aug 20 21:24:49 johndoe systemd[1]: apache2.service: Control process exited, code=exited status=1
Aug 20 21:24:49 johndoe systemd[1]: Failed to start LSB: Apache2 web server.
Aug 20 21:24:49 johndoe systemd[1]: apache2.service: Unit entered failed state.
Aug 20 21:24:49 johndoe systemd[1]: apache2.service: Failed with result 'exit-code'.

上面提到的ports.conf看起来很好(第5行是localhost:80)：

# If you just change the port or add more ports here, you will likely also
# have to change the VirtualHost statement in
# /etc/apache2/sites-enabled/000-default.conf

Listen localhost:80

<IfModule ssl_module>
        Listen 443
</IfModule>

<IfModule mod_gnutls.c>
        Listen 443
</IfModule>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

在error.log里找不到什么

Answer 1

域名(例如localhost)和IP地址(如127.0.0.1)之间的连接是在/etc/hosts (或本地DNS服务器)中进行的。我认为配置错误是您不能让Apache监听某个域名(例如localhost)，但是您必须使用一个IP地址。

要让Apache侦听域名，您必须配置一个VirtualHost (有关说明请参见apache文档 )。

Answer 2

好吧，实际上是

Listen localhost:80

它必须改为

Listen 80

我记得，我曾经将它更改为localhost:80，以限制来自外部的连接。也许因为最近的更新，它不再起作用了？我有Apache/2.4.18

问题是，我现在不能使用localhost作为url，我必须调用127.0.0.1