I have two web servers and one public static IP address. All incoming requests first go to server A (Nginx)and then via reverse proxy it comes to server B. I have 4 domains on server B using CentOS 6.9 & Apache.
On server A, I add SSL to one domain (which is hosted on server B) and it works perfect. https://pdappt.com
For managing server B, I am using Plesk. I successfully add SSL certificate for one domain on Plesk but I can not access it. All domains on server B are accessible via http without any issue.
Below is an error I get from Chrome. I cleared cookies multiple times, nothing works. Test if via different browser, it does not work. This page isn’t working myhsts.org redirected you too many times.
When I test the domain online, it shows A+ https://www.ssllabs.com/ssltest/analyze.html?d=myhsts.org
My questions: 1- What is possible causes for this issue?
2- My Plesk uses local IP, is it possible that SSL is issued with local IP not public one and does that affect its accessibility?
3- How can I check what IP address is assigned to a SSL cert for domain on Plesk or Linux command line?
4- Does this has anything to do with DNS settings?