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The Network Information Service, or NIS (originally called Yellow Pages or YP), is a client–server directory service protocol for distributing system configuration data such as user and host names between computers on a computer network. Sun Microsystems developed the NIS; the technology is licensed to virtually all other Unix vendors.
Unix (/ ˈ j uː n ɪ k s / ⓘ, YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 [1] at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. [4]
xman, an early X11 application for viewing manual pages OpenBSD section 8 intro man page, displaying in a text console. Before Unix (e.g., GCOS), documentation was printed pages, available on the premises to users (staff, students...), organized into steel binders, locked together in one monolithic steel reading rack, bolted to a table or counter, with pages organized for modular information ...
A security administrator is a specialist in computer and network security, including the administration of security devices such as firewalls, as well as consulting on general security measures. A web administrator maintains web server services (such as Apache or IIS ) that allow for internal or external access to web sites.
In some cases, the actual name of the account is not the determining factor; on Unix-like systems, for example, the user with a user identifier (UID) of zero is the superuser [i.e., uid=0], regardless of the name of that account; [1] and in systems which implement a role-based security model, any user with the role of superuser (or its synonyms ...
After the release of Version 10, the Unix research team at Bell Labs turned its focus to Plan 9 from Bell Labs, a distinct operating system that was first released to the public in 1993. All versions of BSD from its inception up to 4.3BSD-Reno are based on Research Unix, with versions starting with 4.4 BSD and Net/2 instead
The UID, along with the group identifier (GID) and other access control criteria, is used to determine which system resources a user can access. The password file maps textual user names to . are stored in the of the Unix file system, running processes, tar archives, and the now-obsolete Network Information Service.
For example, I use the commands which & whereis on a regular basis, & I would consider any installation of a UNIX/UNIX-like operating system that lacked those commands critically imperfect. And there are a few other commands that experienced Linux users would be surprised to find excluded from this list, such as emacs.