<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Mon, Mar 24, 2014 at 4:29 PM, Cantor, Scott <span dir="ltr"><<a href="mailto:cantor.2@osu.edu" target="_blank">cantor.2@osu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div>
You don't have two IdPs there, you have one. You can't deploy separate<br>
IdPs for "redundancy", that has to be handled behind the scenes. A browser<br>
is only going to try one place, it can't know to try another.</div></blockquote><div> </div><div>You say I don't have two IdP's in this sense because they would both configured to answer as the same entityID, is that correct? I understand deploying multiple IdP's doesn't solve the problem of sharing sessions among them and upholding the purest since of SSO, but there is some level of "redundancy" the comes from having multiple ones answering the same authentication *if* you can redirect the client between them. we currently use DNS/A record to provide passive failover to a standby IdP should our primary become unresponsive. I was curious about how this was handled in deployments significantly larger than us, especially if usage dictates the IdP scaling beyond running on a single host. </div>
<div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div>It doesn't have to be a load balancer, but there can only be one endpoint<br>
tried, period. It's physically impossible to do anything else with a<br>
browser unless the first endpoint just redirects to the second, which<br>
isn't really going to work if the first is down.</div></blockquote><div> </div><div>I understand the browser can only redirect to a single endpoint, but because the WAYF/DS is involved in returning that particular endpoint, I didn't know and was curious if there was/could be any intelligence baked in (I guess at the DS level) allowing it to pick from multiple "sites" for a given entityID.</div>
<div> </div><div>-Rob</div><div> </div><div> </div></div><div dir="ltr"><div>Robert W. Gorrell<br>Systems Architect, Identity and Access Management </div>
<div>University of NC at Greensboro<br><span style="white-space:nowrap"><span class="baec5a81-e4d6-4674-97f3-e9220f0136c1" style="white-space:nowrap">336-334-5954<a title="Call: 336-334-5954" style="margin:0px;border:currentColor;width:16px;height:16px;overflow:hidden;vertical-align:middle;float:none;display:inline;white-space:nowrap" href="#"><img title="Call: 336-334-5954" style="margin: 0px; border: currentColor; left: 0px; top: 0px; width: 16px; height: 16px; right: 0px; bottom: 0px; overflow: hidden; vertical-align: middle; float: none; display: inline; white-space: nowrap; position: static !important;" 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PGP Key ID B36DB0CA<br></div></div>
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