Question

启动Nginx失败

2015/05/24 13:08:15 [emerg] 24652#24728: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 13:08:26 [emerg] 24232#21132: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 13:14:10 [emerg] 27904#27908: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 13:14:41 [emerg] 28488#28492: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 13:16:39 [emerg] 27672#24708: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 13:19:31 [emerg] 6128#8724: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:01:40 [emerg] 29028#28816: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:02:23 [emerg] 22668#25008: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:05:27 [emerg] 31156#31160: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:05:49 [emerg] 31832#31836: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:08:56 [emerg] 31196#31072: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:14:26 [emerg] 1908#24408: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:23:32 [emerg] 32008#33460: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:23:46 [emerg] 29836#18940: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:24:17 [emerg] 34320#33968: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:29:39 [emerg] 34048#33396: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
2015/05/24 14:30:05 [emerg] 33576#30464: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)
提示在上面，主要是什么问题，请大侠们回答，详细点

Answer 1

　　Nginx服务有时启动失败，原因是80端口为其它应用程序占用了，这时，需要查看是哪个程序占用了它，可能是IIS的某个站点，或者Tomat,Apache等，都有可能，所以，需要查看一下电脑80端口的使用情况，使用下面命令：
　　netstat -aon|findstr “:80″

　　这时，并没有看到本机有被PID为4的进程占用，在任务管理器里找到了它；

　　关闭80端后，再运行我们的nginx服务。
　　另外，需要知道的nginx三个主要的命令：
　　启动服务：start nginx
　　停止服务：nginx -s stop
　　重新加载：nginx -s reload(配置文件被修改后需要执行它)，即可。

Answer 2

Nginx服务有时启动失败，原因是80端口为其它应用程序占用了，这时，需要查看是哪个程序占用了它，可能是IIS的某个站点，或者Tomat,Apache等，都有可能，所以，需要查看一下电脑80端口的使用情况，使用下面命令：　　netstat -aon|findstr “:80″

这时，并没有看到本机有被PID为4的进程占用，在任务管理器里找到了它；

关闭80端后，再运行我们的nginx服务。　　另外，需要知道的nginx三个主要的命令：　　启动服务：start nginx　　停止服务：nginx -s stop　　重新加载：nginx -s reload(配置文件被修改后需要执行它)，即可。

Answer 3

应该是 80 端口被其他程序占用了。你查出来是谁占用了，把那个程序杀掉进程。

Linux系统 查看
＃netstat -ltunp|grep "80"

Windows系统
C:\Users\Administrator>netstat -aon | findstr :80