301 redirect to new domain syntax

Hello,

What is the correct syntax for permanently redirecting all slugs from an existing domain to a new one that has exactly the same content and permalinks?

Example:
permanently redirect whatever https://old-domain.com/any-slug
to https://new-domain.com/same-slug

without having to do this manually for every single slug?

Thanks!

PS: I tried this: ^/(.*) to /new-domain.com/$1
but apparently: “This will redirect everything, including the login pages. Please be sure you want to do this.”

Is there a way to exclude admin & login pages?