Open Enterprise Server

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Open Enterprise Server^[1] (OES) is a server operating system published by OpenText. It was first published by Novell in March 2005 to succeed their NetWare product.^[2]

Unlike NetWare, OES is a Linux distribution—specifically, one based on SUSE Linux Enterprise Server.^[3] The first major release of Open Enterprise Server (OES 1) could run either with a Linux kernel (with a NetWare compatibility layer) or Novell's NetWare kernel (with a Linux compatibility layer).^[2] Novell discontinued the NetWare kernel prior to the release of OES 2, but NetWare 6.5 SP7, and later SP8, can run as a paravirtualized guest inside the Xen hypervisor (officially supported until 7 March 2012, Novell self-supported until 7 March 2015).