nginx启动报错unknown directive问题处理

操作环境

硬件：华为云服务器
操作系统：Rocky Linux 9.0 64bit
服务器软件：nginx 1.24.0，php 8.2.6，openssl 3.0.7，WordPress6.2.2
客户端软件：MobaXterm_Personal 23.1

问题描述

最近，我在调试网站修改nginx.conf后，用指令 systemctl restart nginx重启nginx服务失败，用指令 systemctl status nginx查看发现 nginx: [emerg] unknown directive "?" in /usr/local/nginx/conf/nginx.conf:169的报错信息。

详情如下：

[root@hecs-288529 conf]# systemctl restart nginx
[2023-06-02 21:01:38]  
Job for nginx.service failed because the control process exited with error code.
[2023-06-02 21:01:38]  See "systemctl status nginx.service" and "journalctl -xeu nginx.service" for details.
[2023-06-02 21:01:38]  [root@hecs-288529 conf]# systemctl status  nginx
[2023-06-02 21:01:47]  

?nginx.service - nginx
[2023-06-02 21:01:47]       Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; preset: disabled)
[2023-06-02 21:01:47]      Drop-In: /usr/lib/systemd/system/nginx.service.d
[2023-06-02 21:01:47]               php-fpm.conf
[2023-06-02 21:01:47]       Active: failed (Result: exit-code) since Fri 2023-06-02 21:01:38 CST; 9s ago
[2023-06-02 21:01:47]     Duration: 12min 43.518s
[2023-06-02 21:01:47]      Process: 20110 ExecStart=/usr/local/nginx/sbin/nginx (code=exited, status=1/FAILURE)
[2023-06-02 21:01:47]          CPU: 5ms
[2023-06-02 21:01:47]  
[2023-06-02 21:01:47]  Jun 02 21:01:38 hecs-288529 systemd[1]: Starting nginx...
[2023-06-02 21:01:47]  Jun 02 21:01:38 hecs-288529 nginx[20110]: nginx: [emerg] unknown directive "?" in /usr/local/nginx/conf/nginx.conf:169
[2023-06-02 21:01:47]  Jun 02 21:01:38 hecs-288529 systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
[2023-06-02 21:01:47]  Jun 02 21:01:38 hecs-288529 systemd[1]: nginx.service: Failed with result 'exit-code'.
[2023-06-02 21:01:47]  Jun 02 21:01:38 hecs-288529 systemd[1]: Failed to start nginx.
[2023-06-02 21:01:47]