nginx填坑之路（1）Nginx 检测语法正常，启用报 [emerg] bind() to 0.0.0.0:XXXX failed (13: Permission denied)错误处理...

爱被打了一巴掌 2024-04-01 13:51 42阅读 0赞

> 参考文档：[Nginx 启动报 \[emerg\] bind() to 0.0.0.0:XXXX failed (13: Permission denied)错误处理][Nginx _ _emerg_ bind_ to 0.0.0.0_XXXX failed _13_ Permission denied]

> **nginx 启动失败：** 检测语法正常，启用端口报错：\[emerg\] bind() to 0.0.0.0:XXXX failed (13: Permission denied)错误处理
> 
> nginx启动报错详细日志
> 
>     [root@localhost conf.d]# systemctl status nginx
>     ● nginx.service - The nginx HTTP and reverse proxy server
>        Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled; vendor preset: disabled)
>        Active: failed (Result: exit-code) since Mon 2022-08-01 22:24:46 KST; 2min 50s ago
>       Process: 27391 ExecStart=/usr/sbin/nginx (code=exited, status=0/SUCCESS)
>       Process: 27600 ExecStartPre=/usr/sbin/nginx -t (code=exited, status=1/FAILURE)
>       Process: 27598 ExecStartPre=/usr/bin/rm -f /run/nginx.pid (code=exited, status=0/SUCCESS)
>      Main PID: 27392 (code=exited, status=0/SUCCESS)
>     
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: Starting The nginx HTTP and reverse proxy server...
>     Aug 01 22:24:46 localhost.localdomain nginx[27600]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
>     Aug 01 22:24:46 localhost.localdomain nginx[27600]: nginx: [emerg] bind() to 0.0.0.0:8885 (13: Permission denied) 《===报错信息
>     Aug 01 22:24:46 localhost.localdomain nginx[27600]: nginx: configuration file /etc/nginx/nginx.conf test failed
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: Failed to start The nginx HTTP and reverse proxy server.
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: nginx.service failed.
>     [root@localhost conf.d]# 
>     [root@localhost conf.d]# 
>     [root@localhost conf.d]# journalctl -xe
>     Aug 01 22:24:46 localhost.localdomain nginx[27600]: nginx: [emerg] bind() to 0.0.0.0:8885 failed (13: Permission denied) 《===报错信息
>     Aug 01 22:24:46 localhost.localdomain nginx[27600]: nginx: configuration file /etc/nginx/nginx.conf test failed
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: Failed to start The nginx HTTP and reverse proxy server.
>     -- Subject: Unit nginx.service has failed
>     -- Defined-By: systemd
>     -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
>     -- 
>     -- Unit nginx.service has failed.
>     -- 
>     -- The result is failed.
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
>     Aug 01 22:24:46 localhost.localdomain systemd[1]: nginx.service failed.
>     Aug 01 22:24:46 localhost.localdomain polkitd[620]: Unregistered Authentication Agent for unix-process:27592:10276196 (system bus name :1.223, object path /org/freedesktop/PolicyKit1/Authenti
>     Aug 01 22:27:13 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:13 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:14 localhost.localdomain kernel: SELinux:  8 users, 14 roles, 5051 types, 318 bools, 1 sens, 1024 cats
>     Aug 01 22:27:14 localhost.localdomain kernel: SELinux:  130 classes, 113338 rules
>     Aug 01 22:27:14 localhost.localdomain kernel: SELinux:  Converting 2343 SID table entries...
>     Aug 01 22:27:16 localhost.localdomain dbus[617]: [system] Reloaded configuration
>     Aug 01 22:27:20 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:20 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:20 localhost.localdomain kernel: SELinux:  8 users, 14 roles, 5051 types, 318 bools, 1 sens, 1024 cats
>     Aug 01 22:27:20 localhost.localdomain kernel: SELinux:  130 classes, 113338 rules
>     Aug 01 22:27:20 localhost.localdomain kernel: SELinux:  Converting 2343 SID table entries...
>     Aug 01 22:27:23 localhost.localdomain dbus[617]: [system] Reloaded configuration
>     Aug 01 22:27:26 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:26 localhost.localdomain kernel: SELinux: 2048 avtab hash slots, 113338 rules.
>     Aug 01 22:27:26 localhost.localdomain kernel: SELinux:  8 users, 14 roles, 5051 types, 318 bools, 1 sens, 1024 cats
>     Aug 01 22:27:26 localhost.localdomain kernel: SELinux:  130 classes, 113338 rules
>     Aug 01 22:27:26 localhost.localdomain kernel: SELinux:  Converting 2343 SID table entries...
>     Aug 01 22:27:29 localhost.localdomain dbus[617]: [system] Reloaded configuration

--------------------

#### 系统启动Nginx报错： \[emerg\] bind() to 0.0.0.0:XXXX failed (13: Permission denied)错误的处理方式，分为两种： ####

##### 第一种：端口小于1024的情况： #####

[emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

原因是1024以下端口启动时需要root权限，所以`sudo nginx`即可。 **或者** 修改`/etc/nginx/nginx.conf` 配置文件将`user nginx;`改成 `user root;`

##### 第二种：端口大于1024的情况： #####

[emerg] bind() to 0.0.0.0:8885 failed (13: Permission denied)

这种情况，需要如下操作：  
1、查看http允许访问的端口：

semanage port -l | grep http_port_t
    http_port_t                    tcp      80, 81, 443, 488, 8008, 8009, 8443, 9000
    pegasus_http_port_t            tcp      5988

2、将要启动的端口(8881)加入到如上端口列表中

semanage port -a -t http_port_t  -p tcp 8885

[Nginx _ _emerg_ bind_ to 0.0.0.0_XXXX failed _13_ Permission denied]: https://blog.csdn.net/RunSnail2018/article/details/81185138