TLS Mastery (Tux Edition) by Michael W Lucas

Transport Layer Security, or TLS, makes ecommerce and online banking possible. It protects your passwords and your privacy. Let’s Encrypt transformed TLS from an expensive tool to a free one. TLS understanding and debugging is an essential sysadmin skill you must have.

TLS Mastery takes you through:

-How TLS works

-What TLS provides, and what it doesn’t

-Wrapping unencrypted connections inside TLS

-Assessing TLS configurations

-The Automated Certificate Management Environment (ACME) protocol

-Using Let’s Encrypt to automatically maintain TLS certificates

-Online Certificate Status Protocol

-Certificate Revocation

-CAA, HSTS, and Certificate Transparency

-Why you shouldn’t run your own CA, and how to do it anyway

-and more!

Stop wandering blindly around TLS. Master the protocol with TLS Mastery!