[GRLUG] Slightly OT, .. Bad URL redirect

[Grand Rapids Linux Users Group]

Doing more testing with another system that is the same distro, version,
and application (i.e. both run Nagios):

   Original machine		    Test machine
   ================		    ============

lynx usam.com			lynx usam.com
	<fails>				<works!>
    ldd lynx 				<same library versions!!>

curl usam.com			curl usam.com
	<fails>				<returns the redirect HTML>
    ldd curl				<same libraries & vers!!>

repositories	<exactly the same>
update status	<exactly the same>

My original hypothesis that the problem could be traced to the last
letsencrypt update does not appear valid, as there are other sites with
newer certs that DO work properly.

As there is no code difference between tools on these two machines, how
can the cause of this site failure be isolated?

	Thanks!