outlook, exchange, NTLM Authentication

while connecting to outlook 2013 we hve exchange 2010

do we do Kerberos or NTLM Authentication

connecting from inside office  or through OA
pramod1Asked:
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.

timgreen7077Exchange EngineerCommented:
use NTLM
0
pramod1Author Commented:
any reason if I am asked ? why not use kerberos
0
timgreen7077Exchange EngineerCommented:
Outlook attempts to authenticate using the Kerberos authentication protocol for internal clients by default i believe. If this attempt fails, Outlook attempts to authenticate using NTLM. When setting outlook anywhere on Exchange your external clients will authenticate via NTLM or Basic with NTLM being the more secure. There is no option when setting up outlook anywhere in Exchange for Kerberos, only NTLM, Basic and Negotiate.
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
markgamacheAD and PKI NinjaCommented:
Even if you could setup Kerberos, you don't want to .  It would require that you put your DCs on the internet. At least U88 and T88 and your AD DNS.
0
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
Exchange

From novice to tech pro — start learning today.