'Programmatically check if domains are DNSSEC protected
As the title says I want to programmatically check if a DNS response for a domain are protected with DNSSEC.
How could I do this?
It would be great, if there is a pythonic solution for this.
UPDATE: changed request to response, sorry for the confusion
Solution 1:[1]
To see if a particular request is protected, look at the DO flag in the request packet. Whatever language and library you use to interface to DNS should have an accessor for it (it may be called something else, like "dnssec").
The first answer is correct but incomplete if you want to know if a certain zone is protected. The described procedure will tell you if the zone's own data is signed. In order to check that the delegation to the zone is protected, you need to ask the parent zone's name servers for a (correctly signed) DS record for the zone you're interested in.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Calle Dybedahl |