“I’m glad someone’s finally giving ed the attention it deserves.” – Ken Thompson, co-creator of Unix Let me be perfectly clear: ed is the standard Uni

Transport Layer Security, or TLS, makes ecommerce and online banking possible. It protects your passwords and your privacy. Let’s Encrypt transformed TLS from

Let me be perfectly clear: ed is the standard Unix text editor. If you don't know ed, you're not a real sysadmin. Forty years after ed's introduction, internati

"This book will be useful in a wide range of instructional methods classes for elementary, middle school, and high school educators. In addition, because of the

Secure Shell (SSH) lets systems administrators securely manage remote systems. But most people only use the bare minimum SSH offers. Used properly, SSH simplifi