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19
votes
2answers
8k views

DNS just started resolving my server.prod addresses to 127.0.53.53

I have servers named like server.prod.example.com, and I regularly log into them as server.prod. Recently, these hostnames started resolving to 127.0.53.53. It turns out that ICANN recently enabled ...
3
votes
6answers
3k views

How many domain levels are there?

.com,.us are TLD,top level domain, and co.uk are SLD,second level domain. Are there "third level domain, fourth level domain" and so on? How many different TLDs and SLDs are out there?
56
votes
3answers
13k views

Can I create a top level TLD? (.michael for instance)

It appears that ICANN is allowing the creation of top level domains. Instead of 'registering' a domain, you would essentially be signing up to be a registrar (you'd be giving out registrations on ...
3
votes
4answers
5k views

Is it possible to change the postfix message-id?

Is it possible to change the message-id in postfix? If I send Mails over an Java-Application I get the following message-id: ...