[SOLVED] Why Nginx can't run?

hack3rcon · 06-17-2017, 04:32 AM

Hello.
I installed "nginx" on CentOS 7 x64 but it can't run. why?

Code:

[root@localhost ~]# service nginx status -l
Redirecting to /bin/systemctl status  -l nginx.service
● nginx.service - The nginx HTTP and reverse proxy server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Sat 2017-06-17 06:24:38 EDT; 1min 52s ago
  Process: 9221 ExecStart=/usr/sbin/nginx (code=exited, status=1/FAILURE)
  Process: 9217 ExecStartPre=/usr/sbin/nginx -t (code=exited, status=0/SUCCESS)
  Process: 9214 ExecStartPre=/usr/bin/rm -f /run/nginx.pid (code=exited, status=0/SUCCESS)

Jun 17 06:24:36 localhost.localdomain nginx[9221]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jun 17 06:24:36 localhost.localdomain nginx[9221]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jun 17 06:24:37 localhost.localdomain nginx[9221]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jun 17 06:24:37 localhost.localdomain nginx[9221]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jun 17 06:24:38 localhost.localdomain nginx[9221]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jun 17 06:24:38 localhost.localdomain nginx[9221]: nginx: [emerg] still could not bind()
Jun 17 06:24:38 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
Jun 17 06:24:38 localhost.localdomain systemd[1]: Failed to start The nginx HTTP and reverse proxy server.
Jun 17 06:24:38 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
Jun 17 06:24:38 localhost.localdomain systemd[1]: nginx.service failed.

The output of "netstat -tulpn" tell me:

Code:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      9093/nginx: master  
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      30584/sshd          
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      2723/master         
tcp        0      0 127.0.0.1:9051          0.0.0.0:*               LISTEN      5272/ssh            
tcp6       0      0 127.0.0.1:9200          :::*                    LISTEN      5894/java           
tcp6       0      0 ::1:9200                :::*                    LISTEN      5894/java           
tcp6       0      0 127.0.0.1:9300          :::*                    LISTEN      5894/java           
tcp6       0      0 ::1:9300                :::*                    LISTEN      5894/java           
tcp6       0      0 :::22                   :::*                    LISTEN      30584/sshd          
tcp6       0      0 ::1:25                  :::*                    LISTEN      2723/master

Thank you.

hack3rcon · 06-17-2017, 06:03 AM

Problem solved by reboot the system but I can't see the default nginx page when I browse the IP.

Code:

$ curl -X get http://localhost:80
<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx/1.10.2</center>
</body>
</html>

bathory · 06-18-2017, 03:11 AM

Quote:

Originally Posted by hack3rcon

Problem solved by reboot the system but I can't see the default nginx page when I browse the IP.

Code:

$ curl -X get http://localhost:80
<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx/1.10.2</center>
</body>
</html>

That's because you have to use capital letters for the request:

Code:

curl -X GET http://localhost:80

Cheers

hack3rcon · 06-18-2017, 05:35 AM

Quote:

Originally Posted by bathory

That's because you have to use capital letters for the request:

Code:

curl -X GET http://localhost:80

Cheers

As I said, I can't see the default Nginx page !!!

Code:

# curl -X GET http://localhost:80
<html>
<head><title>401 Authorization Required</title></head>
<body bgcolor="white">
<center><h1>401 Authorization Required</h1></center>
<hr><center>nginx/1.10.2</center>
</body>
</html>

hack3rcon · 06-18-2017, 06:23 AM

Problem solved by adding two rules about ports 455 and 80 via "firewalld".