# Nginx Reverse Proxy (Rewrite URL)

- [Download Link](https://nginx.org/en/download.html)
- [Basic Command](https://nginx.org/en/docs/windows.html)


## Window Domain Name Setting (DNS)
File Path

C:\Windows\System32\drivers\etc\hosts

Inside hosts file add customUrl.com

127.0.0.1 customUrl.com

## Rewrite Url Setting
- [Rewrite rule](https://www.nginx.com/blog/creating-nginx-rewrite-rules/)
- [Setting](https://serverfault.com/a/379679)

File Path
``nginx-V0.00 > conf > nginx.conf``

http {
# Rewrite Url setting put inside server
# proxy_pass Link depend on IIS setting
	server {
		listen 80;
		server_name customUrl.com;

                # Add below if have multiple custom port need map to same url
                # http://127.0.0.1:5250 --> http://customUrl.com/path_A
		location /path_A {
			rewrite /path_A/(.*) /$1  break;
			proxy_pass http://127.0.0.1:5250; 
			proxy_redirect     off;
			proxy_set_header   Host $host;
		}

                # http://127.0.0.1:5252 --> http://customUrl.com/path_B		
		location /path_B {
			rewrite /path_B/(.*) /$1  break;
			proxy_pass http://127.0.0.1:5252; 
			proxy_redirect     off;
			proxy_set_header   Host $host;
		}
	}
}

## Windows PowerShell

$ cd [to nginx.exe path]

# Start Nginx
$ start Nginx 

# Check Nginx is Alive
$ tasklist /fi "imagename eq nginx.exe"

# Stop/Close Nginx
$ nginx.exe -s stop

## Troubleshooting
If get this error, please check if pc/server using port 80 \
For window, Check if iis using this Port, then turn it off and run nginx again

Error log path
``nginx-V0.00 > logs > error.log``

[emerg] 47188#70376: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)