664638 - Build and maintain a comprehensive list of every detectable hostname on the internet

Status: NEW

(Core :: Security, enhancement)

Description

[Brian Smith (:briansmith, :bsmith, use NEEDINFO?)]

+++ This bug was initially created as a clone of Bug #664637 +++

It is relatively straightforward to get a list of nearly every domain on the internet, by asking the TLD registries to give us a list of domains, by doing reverse-DNS lookups across every IPv4 address, guessing at common subdomains (www, mail, secure, etc.), using other public datasets such as the EFF SSL observatory database, etc. This database would be useful for many tasks, such as comprehensive testing of interoperability of our TLS client against TLS servers on the internet, improving our email configuration database, etc.