Enhancement: Add `--nord` option to disable Recursion Desired (RD) flag in DNS lookup tool

[waltzbucks]

Some authoritative DNS servers intentionally block or drop queries with the RecursionDesired (RD) flag set, as a mitigation against DNS cache poisoning attacks that leverage recursive queries.

Currently, when testing domain lookups against such authoritative DNS servers, queries fail because the tool always sends RD=1 by default.

Although there is an existing --rd option, it is:

• Boolean

• Enabled (true) by default

• Does not provide a clear or explicit way to force RD=0

To properly test authoritative DNS servers that reject recursive queries, the tool needs a way to explicitly disable the RD flag.

Add a new CLI option:

--nord

Behavior:

• Explicitly sets Recursion Desired = 0
• Overrides default behavior (RD=1)
• Takes precedence over --rd

[racpast]

Hi! The functionality to disable the Recursion Desired (RD) flag already exists in q, following the standard dig-like syntax.

You can explicitly disable it in two ways without needing a new flag:

• Using dig style notation:

q example.com +nord

• Using the explicit boolean flag:

q example.com --rd=false

Since the current --rd flag can already be toggled to false using these methods, a separate --nord flag shouldn't be necessary. Let me know if this works for you!

[waltzbucks]

Hi! The functionality to disable the Recursion Desired (RD) flag already exists in q, following the standard dig-like syntax.

You can explicitly disable it in two ways without needing a new flag:

• Using dig style notation:

q example.com +nord

• Using the explicit boolean flag:

q example.com --rd=false
Since the current --rd flag can already be toggled to false using these methods, a separate --nord flag shouldn't be necessary. Let me know if this works for you!

I got your comment. I really appreciate your help. 😆👍