在Ubuntu VPS上启动Nginx服务时出错

Question

i am begginer user of vps, i have a reactJS app, and i wnat to deploy it on my ubuntu 18 vps with nginx. I have followed the stpes of this tutorial Deploying create-react-app with Nginx and Ubuntu

i had already check all the steps, but when i put the command

sudo service nginx start

the system show's me, the next error message:

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

and when i put "journalctl -xe" shows me this:

nginx, error

ngnix, error

please help me friends

Answer 1

Look in your log file on messages before the error "Failed to startup nginx"

You will see the reason of problem. bind() to 0.0.0.0:80 failed (98: Address already in use)

Looks like port 80 on your vps server is already in use by some application. Port 80 used for HTTP services.

So most likely you already have run Apache HTTP server, or some other.

use this command to see what application use it

sudo netstat -tulpn | grep ":80"

If you see apache

tcp6       0      0 :::80                   :::*                    LISTEN      349/apache2  

then you can stop apache

# apache service name also can be httpd (use right command)
# sudo service httpd stop
sudo service apache stop

and run nginx

sudo service nginx start

But you should be sure that you don't use apache for another website.