Use TLS/SSL to Provide Transport Layer Encryption for HTTP Connections with Nginx.
Prepare and Submit a Request to Obtain a Commercially Signed SSL Certificate on CentOS or Fedora
Create an SSL Certificate on a Linux Server Running Centos or Fedora.
Let's Encrypt is an SSL certificate authority managed by the Internet Security Research Group. It utilizes the Automated Certificate Management Environment to automatically deploy browser-trusted SSL certificates to anyone for free.
Serve SSL-enabled websites with the Apache web server.
Create an SSL Certificate on a Linux Server Running Debian or Ubuntu
How to serve multiple SSL-enabled websites from a single public IP using the SubjectAltName feature of OpenSSL.
Prepare and Submit a Request to Obtain a Commercially Signed SSL Certificate on Debian or Ubuntu.
Serve SSL-enabled websites with the HTTPD web server.