tokio-postgres - hangs opening a connection when host is tailscale DNS

[sdedovic]

I am trying to connect to a database over my VPN. I use tailscale and have magic DNS enabled. I notice the following:

• host is set to the IP address, it works and connects just fine
• host is the magic DNS entry, it cannot connect and hangs indefinitely

I have not done much investigation, yet. It is also worth noting that using the magic DNS works for JDBC and other DB connectors.

[sfackler]

The library just uses getaddrinfo for DNS resolution.

[sdedovic]

After some more investigation, I believe this is an issue with the Nix package manager and MacOS.

I have not confirmed the issue exists when using a system-wide rustup installed version of rust but that is my next step.