Open Enterprise Server
| Developer | OpenText |
|---|---|
| OS family | Linux (Unix-like) and NetWare |
| Working state | Current |
| Source model | Open source / Closed source |
| Latest release | OES 23.4 / October 2023 |
| Marketing target | |
| Package manager | RPM Package Manager |
| Preceded by | NetWare 6.5 |
Open Enterprise Server (OES) is a server operating system published by OpenText. It was first published by Novell in March 2005 to succeed their NetWare product.
Unlike NetWare, OES is a Linux distribution—specifically, one based on SUSE Linux Enterprise Server. 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). 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).