I was one of the early RHCE (Red Hat Certified Engineer (IIRC)) around 15 years ago.
I let the certification expire - I couldn’t find anyone to hire me to do that, even working at a consulting firm at the time.
If the situation has changed that radically, I guess it might be worth dusting the corners of my brain.
Relative to other systems, how secure is Linux?
Well, since I am now teaching IT courses and we pay close attention to national job trends; I must have missed this overwhelming demand for Linux gurus. A background in multiple OS is going to obviously going to be helpful as is knowledge of multiple programming languages and multiple database systems. Most job listings are ridiculously specific with regard to experience and knowledge base. If you are a networking person then certainly, a good knowledge of Linux as well as Windows Servers is essential.
For later
Very true. Even knowing Linux without a certification will get you an interview at many places, and or can even seal the deal if it comes down to them choosing between equally qualified people, one knowing some Linux and the other not.
Interesting. I’m having my son learn Java on a PC for a career. Maybe I’ll have to install a Linux partition also so he’s familiar with that also.