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Cloudflare DevelopersCD
Cloudflare Developers•12mo ago•
46 replies
Yousef

SSL Certificate

I have an Ubuntu VPS server running a web server with Nginx. Initially, I configured Cloudflare as a reverse proxy pointing to my server’s IPv4 address. I noticed that my server’s IPv4 address was being exposed on services like Shodan.io, one of my friends checked it and told me the reason was from the ssl, because when he searched with the ssl he also found the ip, even though I had configured SSL to "Full" mode in Cloudflare and hosted the SSL certificate on my server.

As I’m still new to server management, I switched the SSL setting in Cloudflare to "Flexible" and removed the SSL configuration from the Nginx setup. Could this change have been the reason my IPv4 address was exposed? Additionally, I would like to know the best practice for SSL configuration. Should I use "Full Strict" mode and host the SSL certificate on my VPS?
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