Red Hat Enterprise Linux - Wikipedia
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CentOS - Wikipedia
Extended Lifecycle Support for Linux
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AWS Marketplace: Red Hat Enterprise Linux 6 Extended Life Cycle Support (ELS)
Red Hat Enterprise Linux Life Cycle - Red Hat Customer Portal
Red Hat Enterprise Linux Life Cycle - Red Hat Customer Portal
Oracle Linux administration notes
Red Hat Enterprise Linux - Wikipedia
Red Hat Enterprise Linux Release Dates - Red Hat Customer Portal
Red Hat releases the last of the RHEL 6.x line | ZDNET
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Red Hat Enterprise Linux (RHEL) 9
Red Hat Linux 6 End of Maintenance support II has expired (November 2020), Time to migrate to a supported version of RHEL - Red Hat Customer Portal
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Oracle Linux (Oracle) | Release lifecycle & end-of-life (Eol) overview
EuroELS – extended support for Enterprise Linux 6 systems
