OpenStep is a defunct object-oriented application programming interface (API) specification for a legacy object-oriented operating system, with the basic goal of offering a NeXTSTEP-like environment on non-NeXTSTEP operating systems.OpenStep was principally developed by NeXT with Sun Microsystems, to allow advanced application development on Sun's operating …

OpenVAS (Open Vulnerability Assessment System, originally known as GNessUs) is the scanner component of Greenbone Vulnerability Manager (GVM), a software framework of several services and tools offering vulnerability scanning and vulnerability management.. All Greenbone Vulnerability Manager products are free software, and most components are licensed under …