Miek Gieben's [1] DNS library [2] is truly excellent. I use it at Port 6379 for an authoritative DNS server, looking up Redis instances [3]. I too have found Go surprisingly productive and enjoyable to code, and our servers seem very stable so far.

[1] http://www.miek.nl/

[2] https://github.com/miekg/dns

[3] https://port6379.com/blog/2012/09/03/using-dns-to-find-insta...