Forum Discussion
Misty_Spillers_
Feb 14, 2013Nimbostratus
Exchange iapp for multiple Exchange servers (different customers)
I'm on version 11.2.1 and using f5.microsoft_exchange_2010_cas.2012_06_08.
I created an "APM will provided secure remote access" iapp for one of our customers and it worked for the most p...
- Jun 19, 2013Misty,
mikeshimkus_111
Jun 18, 2013Historic F5 Account
I believe it should work with some post-configuration steps depending on the what you are doing with APM, but it will take me a bit of time to investigate that.
One issue I know of off the top of my head is the DNS server settings in the System menu. You can put multiple DNS servers in the list, but APM will only check the first one and if no information is found at that server for the requested domain, it considers that a successful response and doesn't check any further down the list.
So, if your APM policies use objects that need to do DNS lookups and you have multiple policies doing lookups against multiple DNS servers that don't know about each other, you are going to have problems with the policy that uses the 2nd DNS server on the list. An example of this is the AAA server object in v11.2 and earlier, which allows you to configure just an FQDN for the AAA server, which of course means that BIG-IP has to go look that IP up using DNS. In 11.3, the AAA server pool requires that you put in both a domain controller FQDN and IP address, so it doesn't need to rely on DNS anymore. It's a simlar story for the Kerberos SSO, which relies on reverse DNS lookups to build a Kerberos ticket request. This can also be worked around in BIG-IP.
I'll do a bit of work here and let you know how it goes. It may require an upgrade to v11.3; looks like you are on v11.2?
Mike
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