Tag: #dns

How does reverse DNS lookup work?

Reverse DNS lookup maps an IP address to a domain name by querying PTR records. The mapping is not always consistent with the forward DNS lookup. 2018-02-09

What is an authoritative DNS server? What is a recursive DNS server?

Authoritative DNS servers provide definitive responses for their domains, while recursive DNS servers consult other servers to serve responses, caching results to reduce load on authorities. 2017-08-20

How can I do DNS lookup in Go?

Using the Go "net" package to look up IP addresses for a given domain name, using either the C stdlib or a pure Go DNS resolver. 2017-08-03

How does GeoDNS work?

GeoDNS uses geo-IP to locate clients and connect them to the nearest server, reducing latency. 2017-02-08

What do DNS datagrams look like?

The structure and contents of a DNS request datagram, including the header, question section, and how to represent it in C. 2016-12-31

All content copyright James Fisher.