SSH should feel boring. You type ssh hostname, the server asks for whatever
authentication it needs, and you get a shell. When it pauses for 30, 60, or 120
seconds before anything useful happens, the delay is usually not random. It is
almost always name resolution, address-family selection, routing, or …
macOS SSH Slow to Connect: Troubleshooting IPv6, DNS, and Remote Login
Posted on in System Administration