+++ title = "Reverse HTTPS Proxy with Nginx" date = 2021-08-23T00:00:00 lastmod = 2021-08-23T00:00:00 draft = true

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+++

Objective:

A single computer, hosting things like

• app1.example.com
• app2.example.com

Each app is represented by a different subdomain of a domain we've registered.

Subdomain CNAME records

First, add some CNAME records to point those subdomains to your root domain

• app1.example.com CNAME 1 hour example.com.
• app2.example.com CNAME 1 hour example.com.

That should take a couple seconds / a couple minutes to propogate. Check with

nslookup app1.example.com

nginx proxy

We'll use nginx proxy to aim incoming requests to app1.example.com to a particular port.

Start up a test service at the desired port:

python3 -m http.server 4567
python3 -m http.server 4568

Edit /etc/nginx/nginx.conf to do the forwarding. In the http section, add something like

server {
    listen 80;
    server_name app1.example.com;

    location / {
        proxy_pass http://localhost:4567;
    }   
}

server {
    listen 80;
    server_name app2.example.com;

    location / {
        proxy_pass http://localhost:4568;
    }   
}

Restart nginx

systemctl restart nginx`

Then navigate to app1.example.com and see your stuff!

nginx proxy with https