What’s their excuse?
DDNS doesn’t work behind CGNAT. Never heard of ngrok; google says it might work. I’m trying to do something with WireGuard.
Cloudflare tunnel (aka a reverse proxy, like ngrok) will also likely work for your mystery project, and it’s free. VPN is more secure, but as always, it’s a trade-off between the security of a vpn and the convinence of a reverse proxy that’s available on the open internet.
A reverse proxy like nginx?
Basically, I want to move files between my NAS (behind CGNAT) and webserver and rsync isn’t cutting it. I think WireGuard will be best, then I can use my existing NFS and Kerberos infrastructure.