a zone file, as seen in BIND, the Berkeley Internet Name Daemon. Above, we have a small but complete example of a typical zone file—in fact, it's an anonymized version of a production zone file ...

This is what my zone file looks like. it's a bit of a mess... I understand the general format, but what's with the bolded stuff? Is it just garbage I can delete? The ...

It is a problem as old as the Internet. You want to access your computer remotely, but it is behind a router that randomly gets different IP addresses. Or maybe it is your laptop and it winds up ...