SSL (Secure Sockets Layer) is a Web protocol for encrypting and autentification based on a session. The Apache Web-server supports SSL and TLS (Transport Layer Security), by using module mod_ssl. This paper discusses the implementation of SSL protocols on the Apache Web-server. Also, it explains how SSL protocols work, and how to use SSL protocols. Installing and configuring the mod_ssl module within the Apache server is also discussed. Finally, the paper describes the results of security tests of the Apache server configuration, by using the Nessus software. In computer security, Nessus is a comprehensive vulnerability scanning program, free of charge for personal use in in a non-enterprise environment. Its goal is to detect potential vulnearibilities on the tested sxstems, for example, vulnerabilties that allow a remote cracker to control or access sensitive data on a system.
