quick expiry of SP Meta data

[Peter Schober]

* Lalith Jayaweera <ljayaweera at gmail.com> [2019-05-06 03:31]:
> I will discourage this, however if we can come up with some meta data
> signing process with the SP,
> 
> Then I believe that is the way to go? correct?

They would also need to re-sign that metadata regularly, each time
pushing the validUntil expiration date into the (near, say, between a
couple of days and a few weeks) future.

This is explained in the documentation I already pointed you to:
https://wiki.shibboleth.net/confluence/display/CONCEPT/TrustManagement#TrustManagement-Securingthe%22Inline%22Model

-peter