Have 3 default gateways, but which DNS servers do I use in DNS forwarders section of local DNS server?

I have several internet lines, 2 T1's, and one DSL line.  Each of course comes with 2 DNS (primary and secondary) servers provided by each respective ISP.  My question is, should i put all 6 DNS address in my DNS server's forwarders property?  Or should i put the two closest/fastest ones in there?  Also how do i find out which of these DNS servers respond the fastest to queries?  Thanks!
QuiteSupersonicAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

reb_elmagnificoCommented:
You can simply ping each one of them.  Check the response times and order the forwarders appropriately...fastest response time is 1st, 2nd fastest is 2nd, etc.  You can add all of them, but just know that the first one will be used 95% of the time.

Hope this helps.

REB
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
TCP/IP

From novice to tech pro — start learning today.