I have experience with Red Hat Enterprise Linux (RHEL), using both the cloud-based and on-premises versions, with a focus on the on-premises deployment. As an infrastructure support engineer and senior manager, my main use cases include providing infrastructure for all applications and businesses. This encompasses user account management, application handling, and operating system requirements for each virtual machine. We are building and delivering products using Red Hat Enterprise Linux (RHEL), and we also utilize Red Hat Ansible Automation Platform and Red Hat Satellite for patching the operating system and other Red Hat applications.
We use a ton of operating systems in our environment. We have Red Hat flavors, CentOS, Ubuntu, and multiple Debian versions. I have previously used AIX and Windows servers, with multiple versions of Windows as well. We maintain diversity in operating system usage.
Recently, we purchased Red Hat Enterprise Linux (RHEL) with support on a host-based license model. We previously used a per-host-wise license structure, but we opted for the highest license option, which provides unlimited virtual machines per host. The total investment was approximately 1.2 million dollars for around 1,100 hosts.