I recently replaced a machine with a new one that has Mac OS 10.10 (Yosemite) loaded. Mac OS 10.9 ran Apache 2.2, where 10.10 runs 2.4. This requires some configuration change. I'm working through these now and have http serving but not https and am not seeing any errors in my logs that would indicate where to look. If others here have done similar upgrades do you recall any notable changes in your mod_ssl configuration? I've googled, but haven't found anything obvious.