My nginx listen on port 33333

```
listen 33333;

```

in /etc/nginx/sites-available/ I have:

```
server {
    listen 33333;
    server_name domain.com www.domain.com;

```

My website work only If I run:

> 
> www.mydomain.com:33333
> 
> 
> 

How to make it work well with the:

> 
> www.domain.com
> 
> 
> 

Without giving the port.

**Note: My port 80 is used by apache. I can not change it.**