Vendor Learning Platforms
The vendor learning platforms will provide technology product specific knowledge. A lot of big vendors will offer free training courses. Below are resources that offer free courses and/or reasonable priced courses that assisted in gaining knowledge, improving skills, or studying for certifications. Be sure to browse the catalog available from these platforms. There is a lot of free content, but some of these platforms/websites do offer both free and paid content. Cyb3r-S3c is not an affiliate of any of these sites and does not receive any payment.
Microsoft Virtual Academy
Microsoft Virtual Academy provides Microsoft product based training that will help familiarize yourself with Microsoft products and sharpen your skills in those products. There are a variety of training material from Windows operating systems to virtualization. (https://learn.microsoft.com/en-us/training/)
Red Hat
Red Hat Training provides Red Hat product based training that will help familiarize yourself with Red Hat products and sharpen your skills in those products. There are a variety of training material from RHEL operating systems to virtualization. (https://www.redhat.com/en/services/training-and-certification?learning_options=free_courses&=free_courses#learning_paths)
Apple Training
Apple Training provides training material that provides tutorials and exercises that cover the core concepts required for a variety of roles whether you are help desk or managing devices for an organization. You get access to foundational content to support Apple devices in organizations, as well as advanced content about deploying and managing Apple devices at scale. (https://trainingcms.apple.com/it)