Type “nginx -t” to see what the error may be.

You have a duplication for your server_name declaration in one or more of your files. I sometimes run into this when I copy the default.conf file and there is a sever_name _; entry in both files.

Hi guys

Thanks for the your valuable suggestions.

Here I had issue like my apache2 and nginx is running in the same port number.
I changed the apache2 port number from 80 to 8080 and it worked for me.

[root@localhost bin]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
[root@localhost bin]# nginx
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()
[root@localhost bin]# systemctl status nginx.service
● 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 2018-04-09 16:35:28 IST; 6min ago
Process: 22654 ExecStart=/usr/sbin/nginx (code=exited, status=1/FAILURE)
Process: 22597 ExecStartPre=/usr/sbin/nginx -t (code=exited, status=0/SUCCESS)
Process: 22595 ExecStartPre=/usr/bin/rm -f /run/nginx.pid (code=exited, status=0/SUCCESS)

Apr 09 16:35:27 localhost.localdomain nginx[22654]: nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
Apr 09 16:35:27 localhost.localdomain nginx[22654]: nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
Apr 09 16:35:28 localhost.localdomain nginx[22654]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Apr 09 16:35:28 localhost.localdomain nginx[22654]: nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
Apr 09 16:35:28 localhost.localdomain nginx[22654]: nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
Apr 09 16:35:28 localhost.localdomain systemd[1]: nginx.service: control process exited, code=exited status=1
Apr 09 16:35:28 localhost.localdomain nginx[22654]: nginx: [emerg] still could not bind()
Apr 09 16:35:28 localhost.localdomain systemd[1]: Failed to start The nginx HTTP and reverse proxy server.
Apr 09 16:35:28 localhost.localdomain systemd[1]: Unit nginx.service entered failed state.
Apr 09 16:35:28 localhost.localdomain systemd[1]: nginx.service failed.

How can i fixed.