想要安装WoWSimpleRegistration，就定下来要用nginx+php8 ，结果nginx那里加上php的支持之后一直报错：

$ sudo service nginx restart
Job for nginx.service failed because the control process exited with error code.
See "systemctl status nginx.service" and "journalctl -xeu nginx.service" for details.

最灵异的地方就是：将配置恢复成今天修改之前的，还是同样的报错。简直是《走进科学》IT版。

当然用sudo systemctl status nginx.service看，报错还是不一样的。

自己写php配置后的报错：

× nginx.service - A high performance web server and a reverse proxy serverLoaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)Active: failed (Result: exit-code) since Thu 2024-02-08 07:53:31 UTC; 11s agoDocs: man:nginx(8)Process: 47195 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)CPU: 28msFeb 08 07:53:31 ub systemd[1]: Starting A high performance web server and a reverse proxy server...
Feb 08 07:53:31 ub nginx[47195]: nginx: [emerg] unexpected end of file, expecting ";" or "}" in /etc/nginx/conf.d/wow>
Feb 08 07:53:31 ub nginx[47195]: nginx: configuration file /etc/nginx/nginx.conf test failed
Feb 08 07:53:31 ub systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
Feb 08 07:53:31 ub systemd[1]: nginx.service: Failed with result 'exit-code'.
Feb 08 07:53:31 ub systemd[1]: Failed to start A high performance web server and a reverse proxy server.

现在恢复配置之后的报错：

× nginx.service - A high performance web server and a reverse proxy serverLoaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)Active: failed (Result: exit-code) since Thu 2024-02-08 06:33:07 UTC; 1h 9min agoDocs: man:nginx(8)Process: 29162 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)Process: 29163 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=1/FAILURE)CPU: 86msFeb 08 06:33:05 ub nginx[29163]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Unknown error)
Feb 08 06:33:05 ub nginx[29163]: nginx: [emerg] bind() to [::]:80 failed (98: Unknown error)
Feb 08 06:33:06 ub nginx[29163]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Unknown error)
Feb 08 06:33:06 ub nginx[29163]: nginx: [emerg] bind() to [::]:80 failed (98: Unknown error)
Feb 08 06:33:06 ub nginx[29163]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Unknown error)
Feb 08 06:33:06 ub nginx[29163]: nginx: [emerg] bind() to [::]:80 failed (98: Unknown error)
Feb 08 06:33:07 ub nginx[29163]: nginx: [emerg] still could not bind()
Feb 08 06:33:07 ub systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
Feb 08 06:33:07 ub systemd[1]: nginx.service: Failed with result 'exit-code'.
Feb 08 06:33:07 ub systemd[1]: Failed to start A high performance web server and a reverse proxy server.

这样就看明白了，是80端口绑定报错。然后脑子突然在线了，是不是今天调试的时候，把apache安装上去了？ 打开本地页面http://127.0.0.1 ,果然是apache的页面。原来这就是nginx恢复配置也无法启动的原因啊！ 

把apache服务停掉：sudo systemctl stop apache2

然后再开nginx的服务：sudo service nginx restart

没有报错了！ 好，现在开始调试php吧！

再仔细看php的报错：

skywalk@ub:/etc/nginx$ journalctl -xeu nginx.service 
Feb 08 10:30:55 ub nginx[49977]: nginx: configuration file /etc/nginx/nginx.conf test failed
Feb 08 10:30:55 ub systemd[1]: nginx.service: Control process exited, code=exited, status=1/F>
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ An ExecStartPre= process belonging to unit nginx.service has exited.
░░ 
░░ The process' exit code is 'exited' and its exit status is 1.
Feb 08 10:30:55 ub systemd[1]: nginx.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ The unit nginx.service has entered the 'failed' state with result 'exit-code'.
Feb 08 10:30:55 ub systemd[1]: Failed to start A high performance web server and a reverse pr>
░░ Subject: A start job for unit nginx.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ A start job for unit nginx.service has finished with a failure.
░░ 
░░ The job identifier is 7021 and the job result is failed.

使用nginx -t查看：

$ sudo nginx -t
nginx: [emerg] unexpected end of file, expecting ";" or "}" in /etc/nginx/conf.d/wow.conf:18
nginx: configuration file /etc/nginx/nginx.conf test failed

定位到18行 ，但是没有问题啊，括号是成对的啊，所有的语句后面都有分号。

再仔细查看，发现最后第18行，有一个“~”字符，由于它跟vi的显示字符一样（颜色不同），误以为第18行是空行，将其删除，ok拉！

现在http服务器起来了，但是php服务还没起来。 手动写index.php 文件，结果没执行，被下载下来了

怀疑是php-fpm服务没有起来，手工起，结果失败：

sudo systemctl start php-fpm
Failed to start php-fpm.service: Unit php-fpm.service not found.

先查看apt有没有安装

$ sudo apt list |grep fpmWARNING: apt does not have a stable CLI interface. Use with caution in scripts.libfpm-helper0/jammy 4.2-2.3 amd64
libintelrdfpmath-dev/jammy 2.0u2-4 amd64
mono-fpm-server/jammy,jammy 4.2-2.3 all
php-fpm/jammy,jammy,now 2:8.1+92ubuntu1 all [installed]
php8.1-fpm/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
php8.1-fpm/jammy-updates,jammy-security 8.1.2-1ubuntu2.14 i386

再查看service

$ sudo systemctl list-units --type=service | grep phpphp8.1-fpm.service                                                                        
loaded active running The PHP 8.1 FastCGI Process Manager

启动：

$ sudo systemctl start php8.1-fpm

现在php-fpm总算启动了

php8.1-fpm.service │ ├─17901 php-fpm: master process (/etc/php/8.1/fpm/php-fpm.conf)│ ├─17904 php-fpm: pool www│ └─17905 php-fpm: pool www

发现这条语句没有： fastcgi_index  index.php;  

加上之后照旧，就像php没有起来一样。

比着这个来一下：

location ~ \.php$ {
try_files $uri = 404;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi.conf;
}