[Freeipa-users] Specifying load balancing to SSSD clients

[Innes, Duncan]

OK - thanks.
 
But is there any way IPA can be tweaked to do this without an "external"
product (albeit a Red Hat one)?  Is it possible for the sssd clients to
round-robin their requests between 2 or more servers?  Is this an sssd
question or generic enough to be in this list?  Would this
functionallity be of use to freeIPA in general? (my view = yes)
 
Cheers
 
Duncan Innes | Linux Architect



________________________________

	From: Mark St. Laurent [mailto:mstlaure at redhat.com] 
	Sent: 20 August 2012 15:15
	To: Innes, Duncan
	Cc: freeipa-users at redhat.com
	Subject: Re: [Freeipa-users] Specifying load balancing to SSSD
clients
	
	
	
http://www.redhat.com/products/enterprise-linux-add-ons/load-balancing/
	
	
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	Federal Team: Senior Solutions Architect
	Red Hat
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	McLean VA, 22102
	Email:  msl at redhat.com
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________________________________

	From: "Duncan Innes" <Duncan.Innes at virginmoney.com>
	To: freeipa-users at redhat.com
	Sent: Monday, August 20, 2012 9:48:30 AM
	Subject: [Freeipa-users] Specifying load balancing to SSSD
clients
	
	Folks,
	
	Hopefully this isn't a dumb question, but I'm constrained by a
few
	things on my estate and would be looking to deploy something
like the
	following:
	
	2 Datacentres
	2 IPA servers at each datacentre
	
	ipa1.domain.com \_ datacentre A
	ipa2.domain.com /
	
	ipa3.domain.com \_ datacentre B
	ipa4.domain.com /
	
	The datacentres are linekd, but bandwidth not great.
	
	Client's in datacentre A should therefore use ipa1.domain.com
and
	ipa2.domain.com as primary servers and only fail over to ipa3 &
ipa4
	when both 1 & 2 are out of action.  Clients would revert to
using
	ipa1/ipa2 whenever either of them came back online.
	
	I understand this configuration has already been done as part of
	https://fedorahosted.org/freeipa/ticket/2282
	
	What I'm wondering is if I can force my clients to load balance
	communication between ipa1 & ipa2.
	
	I don't have the ability to use the _srv_ records in DNS as
that's set
	up for the AD servers on our network.  I also can't create
separate DNS
	servers for the Linux estate (not that I'd particularly want
to).
	
	Is there any current configuration that I can use to force load
	balancing between ipa1/ipa2 under ideal conditions.  Falling
back to
	ipa2 when ipa1 is out of action.  Falling back to (load balanced
	perhaps?) ipa3/ipa4 when ipa1 & ipa2 are both out of action.
	
	Hope the description is reasonable.
	
	Thanks
	
	Duncan Innes | Linux Architect
	



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