We are honest - it's open core model (everything is free to use. The other choice that I can propose is EuroLinux (the company I'm working for). The only problem with Oracle Linux is, well Oracle. Here you have Oracle Linux that, IMO in many cases, is phenomenal. Migrate to the RHEL clones with a bit longer history.The company is For Profit, Public Benefit Corp and is started/backed by CIQ that was/is a company owned by the very same person. In the meantime, Rocky Linux was created by the CentOS founder. The organization is Non-Profit, CloudLinux OS that started it has a good history with the Linux community - still the project is run mainly by a professional company. In my opinion Alma is a much better choice. The ones with the most traction are AlmaLinux and Rocky Linux. Migrate to one of the new RHEL clones.EDIT: There is SUSE Leap that aims to be binary compatible with SLES - see comment. Unfortunately, there is no free clone of SLES. Migrate to SUSE Linux - they have a very similar business model to RHEL.Ubuntu actually became even more popular last year when it comes to enterprise market. Migrate to stable platforms with a good history like Debian and Ubuntu.This answer is biased - I'm working for a company making an RHEL clone.

Debian and Ubuntu officially support in-place upgrade paths while most RHEL clones only have unofficial support - RHEL itself and Oracle Unbreakable Linux being the exceptions, with fully supported leapp upgrades - but things are changing now.

I did the same (rebuilding with latest Ubuntu LTS) in environments where RHEL compatibility was not required. Personal note: I am using RockyLinux with no issues at all (I migrated from a CentOS 8 box with the migrate2rocky script) but, as always, your mileage may vary.įinally, if you are sure to need fewer than 16 RHEL instances, you can use plain simple Red Hat Enterprise Linux from Red Hat's free tier (with no support, obviously).ĮDIT: as wisely suggested in other answers, migrating to a different distributions as Debian, Ubuntu, etc. Otherwise you can use one of the new RHEL clones, such as AlmaLinux, RockyLinux or even Oracle Unbreakable Linux (in this case, be sure to select the RHEL-compatible kernel rather than its own customized kernel). If RHEL binary compatibility is not strictly required and if using in-tree kernel modules only (i.e.: no out-of-tree kmods are required), CentOS Stream should remain a viable option.

Centos 7