From the course: Linux System Engineer: Web Servers and DNS Using Apache, NGINX, and BIND

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About Apache and SSL/TLS

About Apache and SSL/TLS

- [Instructor] Using additional software, Apache is capable of providing secure HTTPS, or Hypertext Transfer Protocol Secure websites using SSL and TLS protocols. A secure web server presents a digital identity certificate to the client to prove its authenticity and to create an encrypted connection to them. SSL was created in the mid-1990s by Netscape Corporation and released as version two. Version two was quickly replaced in 1996 by version three due to some vulnerabilities. TLS replaced SSL and all versions of SSL have been deprecated. TLS is based on SSL version three, but different enough that they do not inter-operate. The current version of TLS is 1.2. Certificates, however, work independently of the encryption protocol. There's two parts to how SSL and TLS works. We'll refer to the layers by their current names, TLS Handshake and TLS Record. The TLS Handshake layer manages which cipher will be used, the authentication, and the key exchange. Handshaking is only done once per…

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