apache服务器常见报错问题

多个站点的定义如下

#NameVirtualHost *:80

#
# VirtualHost example:
# Almost any Apache directive may go into a VirtualHost container.
# The first VirtualHost section is used for requests without a known
# server name.
#
NameVirtualHost 127.0.0.1:80

在这里，NameVirtualHost的字段不能省略，否则起apache时报错：

VirtualHost 127.0.0.1.80 overlaps with VirtualHost 127.0.0.1:80, the first has precedence, perhaps you need a NameVirtualHost directive——虽然apache能起，
同错误描述一样，第二个站点的定义被第一个站点的定义所覆盖，即访问第二个站点指向的其实是第一个

NameVirtualHost 字段的端口号不能忽略，否则起apache时报错：
VirtualHost 127.0.0.1:80 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results
[error] VirtualHost 127.0.0.1:80 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results——apache不能起

如果VirtualHost 字段的端口号确实可用，起apache时报错：
VirtualHost 220.231.32.28:0 — mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results——
但apache可以启动，访问也正常

3 Could not reliably determine the server’s fully qualified domain name

加入ServerName 127.0.0.1即可。

通常每个套接字地址(协议/网络地址/端口)只允许使用一次

(OS 10048)通常每个套接字地址(协议/网络地址/端口)只允许使用一次。 : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down

导致这个问题的原因如下:

1: 可能是本机同时安装了IIS,占用了80端口,关闭IIS重启Apache
2: 可能是本机开着迅雷或者其他软件占用了80端口,试着关闭相关软件