Use Dig For Osx Mac OS X Native Name

According to Cricket Liu, that Doyen of DNS, nslookup doesnt actually use your operating systems resolver library routines, but its own routines which are based upon the resolver ones.

Basically, its like buying a knockoff Gucci handbag: looks the same from a distance, but doesnt really hold up on close examination.

Dig shows you the entire DNS response message, which can be useful when trying to figure out difficult issues.

Running each command without any options, youll notice how much more information is included with the output from dig.

Even though my response is cached (as demonstrated by the non-authoritative statement in the nslookup answer), I still receive the TTL of each record and the authoritative nameservers for the domain.

Id have to type more characters with nslookup to get that and I still dont get the TTL.

If a server is blocking recursion, nslookup provides a rather cryptic answer.

Your users are screaming at you, saying that your DNS service is down, because they cant get to a specific web site.

It can be very useful in situations of lame delegation, a non-responsive authoritative DNS server or missing glue records.

I know, I know, some of these terms sound really esoteric and your eyes just glazed over.

But look at the output of the command below and be assured that the final response is BAD even without all those cryptic terms I just used.

I apologize for the crude domain example Ive used, but it took me awhile to find a domain that threw an error.).

It will make you look really powerful, especially to the grumpy DNS Divas in your organization.

They will know the force is strong in you and maybe theyll start taking your phone calls.

It should not be considered exhaustive, but only a short introduction and shameless promotion for one of the best commands invented since sudo.

Has had me very confused in the past when trying to interpret some Windows behaviour.

Nslookup is at times worse than a wild guess, because it leads you to think its proffering some sort of meaningful answer, when in fact you get truths mixed with half-truths and outright lies, all without context.

Nay, may a virulent pox oertake your source code and reinvent you as an ASCII screensaver that renders a hideous dancing Barney in monochrome using only the lower-order characters.

I could not, would not use something like GTM to handle the main DNS responsibilities for a large website.

I especially love all the extra switches it comes with to hone down on specific information that I need.

Use Dig For Osx Mac OS X Native Name

The results of name or address queries printed by dig may differ from those found by other processes that use the Mac OS X native name and address resolution mechanisms.

The results of DNS queries may also differ from queries that use the Mac OS X DNS routing library.

Chen on IPv6 Buzz 008: Our IPv6-Only Future Alan Partridge on Why Your On-Switch Packet Capture Doesnt Work Or Is Not Correct James Miles on Why Your On-Switch Packet Capture Doesnt Work Or Is Not Correct.

How To Use Dig For Osx