The nginx server that hosts this website can now return your current IP address if you hit the url /ip.

I have an alias in my bashrc to quickly use this to get my current external IP.

$ type externalip
externalip is aliased to `curl -sS'
$ externalip

To set this up, I modified my nginx config to add a location section for /ip

I basically ripped off this stackoverflow post but modified it to only match the single URL.

location =/ip {
        default_type text/plain;
        return 200 "$remote_addr\n";

location / {
        root /var/www/;