Lotus Domino cluster / MS outlook

I clustered my domino server using the application clustering. But some of the users are using MS Outlook to send and receive mails using the domino server using the POP3. But when the fail over happens outlook users need to change the IP address of the POP3 and SMTP server in order to connect to the backup domino server in the cluster. Is there any the fail over can be transparent to the user I mean the outlook users can still use same IP for connecting to the backup domino sever,
jobby1Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
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.

BawerCommented:
when the servers are registered there is no need to change the IP,, especially in cluster environment user will have no idea whether server got down or not,, because another server will support it...
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
LotusDaveCommented:
This problem can be solved by implementing round-robin scheduling in the DNS.
Here's a link to a TCP/IP Knowledge base article that explains how DNS works and how round-robin can work. Speak to your network guys if you need more explanation.

http://technet.microsoft.com/en-us/library/bb726935.aspx

In simple terms you would define multiple IP addresses to a single server name. Instead of having Outlook configured with a fixed IP address configure it to use a Name, e.g. pop3 server.domain.com.

In the DNS records you define pop3server.domain.com to have multiple IP addresses, i.e. the IP addresses of the physical servers. So Outlook can connect to both servers, Domino clustering should keep both servers in sync.

Good luck,
Dave
0
GregBusseyCommented:
Correct me if I'm wrong but round-robin DNS fails when Domino is down but the OS that hosts Domino is still up, right?  In that case, the Outlook client continues to connect to a server even if Domino is down on that server but obviously POP fails.

A solution that would always work would be a network load balancer appliance, such as http://www.barracudanetworks.com/ns/products/balancer_overview.php

These devices check for a test response from the service you're interested in (POP in this case) and redirect to the other server if the first doesn't provide the expected POP response.  This works even when the OS of the first server is still up.
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
Lotus IBM

From novice to tech pro — start learning today.