Configure Https on a VPS with caddy

We are going to use caddy because it manages SSL certificates automatically 😍, seriously! it’s magic!

Basic

Point a (sub)domain to your server’s public IP

For simplicity, let’s use a free DDNS like duckdns.org to point a subdomain (e.g. example-123.duckdns.org) to your server’s IP (e.g. 192.0.2.1)

Duckdns’s dashboard showing configured subdomain
Install caddy in your server

Run it

Assuming application is running on port 3000

sudo caddy reverse-proxy \
    --from example-123.duckdns.org.com \
    --to 127.0.0.1:3000

That’s it!

Configure a domain (Namecheap’s interface)

configuration made in Namecheap

More info about how to Point a domain to an IP in a DNS provider
Install caddy
Run caddy as a service

Assuming application is running on port 3000

The Caddyfile (In Debian / Ubuntu it’s located at /etc/caddy/Caddyfile)
```
www.example.com {
    redir https://example.com{uri}
}

example.com {
    reverse_proxy 127.0.0.1:3000
}
```
```
sudo systemctl restart caddy
```