CBT Nuggets might be a bit more popular than Linux Academy. We know about 1 link to it since March 2021 and only 1 link to Linux Academy. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.
If you're really serious, sign up for an account on linuxacademy.com They have full courses to prepare you for what you're asking. They have their own cloud setup (to deploy a temporary server for practicing excersies) and you can build, destroy, rebuild systems to practice items like Apache setup, nginx setup, modifying selinux policies, user administration, etc etc. For a serious career change, it is definitely... - Source: Reddit / 6 months ago
You don't even need to do this, just simply use udemy.com or cbtnuggets.com and of course youtube and reading books. Even studying for certs in the tech you are interested even if you fo not get the cert, the study path will show you and teach you some good skills. - Source: Reddit / 3 months ago
Udemy - Online Courses - Learn Anything, On Your Schedule
Pluralsight - Pluralsight is a learning management system (LMS) that helps aspiring tech professionals learn the basics of the trade and lets established professionals expand their skill sets.
LinkedIn Learning - Online training through LinkedIn's professional network.
Udacity - Join Udacity to learn the latest in Deep Learning, Machine Learning, Web Development & more, with Nanodegree programs & free online courses.
Khan Academy - Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
Coursera - Build skills with courses, certificates, and degrees online from world-class universities and companies