Why would I use dynamic global hostname on my iMac?

Cxzsa22 wrote:

I am trying to find a way to separate my wifi credentials from my airbnb guests. Can someone tell me how I can do this and wether it is an important thing to do?

Read your router's user manual about setting up a guest account. Give your guests access to the Internet using the guest account connection. This will prevent your guests from seeing your credentials and having access to your account/devices.