OES may refer to:
Novell Open Enterprise Server (OES), originally released in March 2005, is the successor product to Novell, Inc.'s NetWare operating system (OS). Initial versions allowed running on an underlying kernel of either the proprietary Novell kernel or SUSE Linux Enterprise Server (SLES), but since OES 11, only SLES is supported.
OES 11, SP2 was released on January 28, 2014. OES 2015 was released in 2015.
Novell Open Enterprise Server (OES) is best thought of as a platform for delivery of shared network services (file, print, directory, clustering, backup, storage management, PKI, web applications, etc.) and common management tools. OES runs atop a Linux kernel; earlier versions could also run on a NetWare kernel.
OES-Linux uses SUSE Linux Enterprise Server (SLES) as its platform. Atop the SLES install, daemons are added to provide NCP, eDirectory, NSS, iPrint and other services delivered by OES.
OES-NetWare, discontinued with OES 11, used NetWare v6.5 as its platform. Atop the NetWare install, NLMs were added to provide Apache web server, Tomcat, OpenSSH, NCP, eDirectory, NSS, iPrint and other services delivered by OES.