My domain is:pianziwulai.com
I have installed a certificate for the domain on a VPS. everything is OK.
I can see the port 443 is listening.
I can telnet pianziwulai.com 443 from the VPS itself.
I can curl https://pianziwulai.com from the VPS itself.
But I can’t run above commands successfully from an external network(such as another VPS or my PC)
My web server is (include version):apache/2.2.15 (unix)
The operating system my web server runs on is (include version):centos release 6.10(final)
My hosting provider, if applicable, is:VULTR
I can login to a root shell on my machine (yes or no, or I don’t know):yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):No
Certbot is friendly to use, it even can recognize all my existing virtual hosting configurations and add SSL configuration automatically. Nice work!