1. On Fedora, install `nginx-core`, `nginx-mod-stream`, `certbot` and `policycoreutils-python-utils`. On RHEL, install `nginx` from the mainline repository, `certbot`, and `python3-certbot-nginx`. Makesure `rsync` is available on the OS.
2. On Fedora, comment out the default server block in `/etc/nginx/nginx.conf`. On RHEL, move `/etc/nginx/conf.d/default.conf` to `/etc/nginx/conf.d/default.conf.bk`
4. Generate a certificate with your hostname with the `certbot/default-quic` example. Copy `etc/nginx/conf.d/sites_default_quic.conf` to the corresponding directory on your server and edit it approprieately.
This is used on my tunnel servers with multiple IP addresses. Hence, you may see addresses like `ipv4_1` and `ipv4_2`. Just replace them with your own ip addresses.