Red Hat Preliminary Exam in System Administration I Now Available

As our technology-driven world continues to evolve and change on a nearly daily basis, so does the expansion of open-source in new and exciting ways. This global expansion calls for more and more competent Linux systems administrators, both new and experienced, to meet the ever-increasing demands of the industry. Many systems administrators aim to push their own skills further and to become certified in a multitude of products. However, many more are unsure of where they stand, or even how to get started on validating their skills outside of their regular day-to-day operations. There are hundreds of different certifications available in the world, but where should new and inexperienced systems administrators start?

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PAM – Pluggable Authentication Modules for Linux and how to edit the defaults

Originally posted on She ITs and Giggles blog.

Most of us have been using PAM when authenticating without really thinking about it, but for the few of us that have actually tried to make sense of it, PAM is the partner that always says “no”, unless otherwise stated. It’s the bane of any sysadmin’s existence when it comes to making system x secure, and it becomes a major pain point on and off when I forget about the normal rules of engagement.

Continue reading “PAM – Pluggable Authentication Modules for Linux and how to edit the defaults”