[dns-operations] a note on fetching the root zone using "dig"

[Patrick Mevzek]

  On 2018-11-01 17:05 -0500, Mark Andrews wrote:> If we don’t change 
defaults, dig would not be doing EDNS, nor DNS COOKIE both of which are 
really needed.

None of these change the output content (like displaying a name as xn-- 
vs displaying it as pure unicode characters), they just add information 
respecting the existing format.
So this would not break existing scripts, and does not create surprise.

And they also do not depend on the environment, while displaying native 
unicode stuff obviously depend on the locale settings, so things not 
controlled by the application.

> +noidnout works with dig compiled w/o idn support.  You get a message to say that it is not supported buy it isn’t fatal.

There is no such option in my dig 9.9 so when building a script using 
it, even by putting all flags to make sure to force the results in some 
way, it would never be able to take that into account and be future 
proof with later versions.
-- 
Patrick Mevzek