I built an environment from centos installation to php source expansion on linux, but what to do when a browser error occurs
When the error page of CASE1.nginx appears
I can't even start nginx with the following error.
#restart nginx
sudo systemctl restart nginx
#When I use this command, I get the following error.
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
As for the error content, nginx could not be executed. "systemctl status nginx.service" and "journalctl -xe" Please write down the details.
[root@localhost www]# sudo systemctl -l status nginx.service
● nginx.service - nginx - high performance web server
Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code)since tree 2020-08-13 15:42:14 JST; 5s ago
Docs: http://nginx.org/en/docs/
Process: 2591 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=1/FAILURE)
August 13 15:42:11 localhost nginx[2591]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
August 13 15:42:12 localhost nginx[2591]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
August 13 15:42:12 localhost nginx[2591]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
August 13 15:42:13 localhost nginx[2591]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
August 13 15:42:13 localhost nginx[2591]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
August 13 15:42:14 localhost nginx[2591]: nginx: [emerg] still could not bind()
August 13 15:42:14 localhost systemd[1]: nginx.service: control process exited, code=exited status=1
August 13 15:42:14 localhost systemd[1]: Failed to start nginx - high performance web server.
August 13 15:42:14 localhost systemd[1]: Unit nginx.service entered failed state.
August 13 15:42:14 localhost systemd[1]: nginx.service failed.
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) The error says that port 80 is already in use and cannot be executed. So check what is being used on port 80.
sudo lsof -i :80
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
httpd 2776 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
httpd 2777 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
httpd 2778 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
httpd 2779 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
httpd 2780 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
httpd 2781 apache 4u IPv6 25135 0t0 TCP *:http (LISTEN)
I wanted to open it with nginx, but apache was occupying number 80. So uninstall apache.
sudo yum remove -y httpd apr apr-util httpd-tools
#Restart nginx
sudo systemctl restart nginx
#Automatic start registration of nginx
systemctl enable nginx
Now you should be able to start nginx.
Finally, you can use the nginx -t command to check if the syntax of the nginx configuration file is correct.
nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
If CASE2.nginx is running but php-fpm is not working properly
An error occurred.
Sorry, the page you are looking for is currently unavailable.
Please try again later.
If you are the system administrator of this resource then you should check the error log for details.
Faithfully yours, nginx.
First, look at the error log to confirm and clarify the cause.
The error log is /var/log/nginx/error.log or /var/log/php-fpm/error.log, so
cat /var/log/nginx/error.log
2020/08/13 16:26:10 [crit] 2867#2867: *2 connect() to unix:/var/run/php-fpm/php-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 192.168.0.97, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm/php-fpm.sock:", host: "192.168.168.90"
2020/08/13 16:26:10 [error] 2867#2867: *2 open() "/var/www/html/favicon.ico" failed (2: No such file or directory), client: 192.168.0.97, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.168.90", referrer: "http://~~/"
Explanation of error statement
/var/www/html/favicon.ico" failed The error that there is no icon is through because it has nothing to do with opening the browser
connect() to unix:/var/run/php-fpm/php-fpm.sock failed An error is occurring because the unix socket file cannot be received. This can be solved by rewriting the php-fpm configuration file.
The config file is usually located below, so let's open it.
vi /etc/php-fpm.d/www.conf
If the following line is commented out with;, delete it.
This usually opens.