System administration

person who maintains and operates a computer system and/or network

series of computer network protocols for managing systems connected to a network

Cygwin ( ) is a free and open-source Unix-like environment and command-line interface (CLI) for Microsoft Windows. The project also provides a software repository containing open-source packages. Cygwin allows source code for Unix-like operating systems to be compiled and run on Windows. Cygwin provides native integration of Windows-based applications.

command-line interpreter for Unix operating system

thumb|367x367px|List of user groups as displayed in Arch Linux. Here, the superuser is "root".

a device or software application that monitors a network or systems for malicious activity

'''''' ( or ) is a shell command on Unix-like operating systems that enables a user to run a program with the security privileges of another user, by default the superuser. It originally stood for "superuser do", as that was all it did, and this remains its most common usage; however, the official Sudo project page lists it as "su 'do. The current Linux manual pages define as "substitute user", making the modern meaning of "substitute user, do", because can run a command as other users as well.

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Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. plug and play and hot swapping), and status monitoring. It was first released in December 1996. ACPI aims to replace Advanced Power Management (APM), the MultiProcessor Specification, and the Plug and Play BIOS (PnP) Specification. ACPI brings power management under the control of the operating system, as opposed to the previous BIOS-ce

defines the directory structure and directory contents in Linux operating systems

package of GNU software containing reimplementations for many of the basic tools, such as cat, ls, and rm, used on Unix-like operating

collection of updates, fixes, or enhancements to a software program delivered in the form of a single installable package

standard UNIX utility

abbreviated as SAAD, an unofficial celebration day for system administrators

task manager program found in many Unix-like operating systems. It produces an ordered list of running processes selected by user-specified criteria, and updates it periodically

Nagios () is an open-source network and infrastructure monitoring system. It monitors hosts, services, and network devices, sending alerts when components fail and again when they recover. Originally written by Ethan Galstad in 1999 as NetSaint, it was renamed Nagios in 2002 after a trademark dispute. The name is a recursive acronym: "Nagios Ain't Gonna Insist On Sainthood."

all of the activities needed to make a software system available for use

A sysop (, ; an abbreviation of system operator, and sometimes further abbreviated to just op) is an administrator of a multi-user computer system, such as a bulletin board system (BBS) or an online service virtual community. The phrase may also be used to refer to administrators of other Internet-based network services. Sysops typically do not earn money, but donate their activity to the community.

user group on Wikipedia

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CPU-Z is a freeware system profiling and monitoring application for Microsoft Windows and Android that detects the central processing unit, RAM, motherboard chipset, and other hardware features of a modern personal computer or Android device.

computer key

in early computers, unit used to control the machine

process of recovering passwords from data that has been stored in or transmitted by a computer system

Extensions of Windows Driver Model

In computing, syslog () is a standard for message logging. It allows separation of the software that generates messages, the system that stores them, and the software that reports and analyzes them. Each message is labeled with a facility code, indicating the type of system generating the message, and is assigned a severity level.

System monitor for X

systems design and implementation with a view to maximising service

component of Windows 2000

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server software for deploying and maintaining operating systems over a network

fictional character created by Simon Travaglia. a rogue system administrator who takes out his anger on users

In computing and telecommunications, downtime (also (system) outage or (system) drought colloquially) is a period when a system is unavailable. The unavailability is the proportion of a time-span that a system is unavailable or offline. This is usually a result of the system failing to function because of an unplanned event, or because of routine maintenance (a planned event).

interface standard

enables organizations to connect devices with an RS-232, RS-422 or RS-485 serial interface to a local area network

Polkit (formerly PolicyKit) is a component for controlling system-wide privileges in Unix-like operating systems. It provides an organized way for non-privileged processes to communicate with privileged ones. Polkit allows a level of control of centralized system policy. It is developed and maintained by David Zeuthen from Red Hat and hosted by the freedesktop.org project. It is published as free software under the terms of version 2 of the GNU Lesser General Public License.

SolarWinds Corporation is an American company that develops software for businesses to help manage their networks, systems, and information technology infrastructure. It is headquartered in Austin, Texas, with sales and product development offices in a number of locations in the United States and several other countries.

hardware or software component used to monitor system resources and performance in a computer system

A hotfix is a software update that is released outside the normal update cycle or intended to be applied to a live system, often to fix a bug.

cloud based computer software

enterprise-wide administration of distributed systems including computer systems

controlling a computer remotely for administrative purposes

Linux kernel keyboard shortcuts

limit set by a system administrator restricting some file system usage

technology by Intel

container system

set of techniques or tools for resisting or mitigating the impact of distributed denial-of-service attacks on networks attached to the Internet by protecting the target and relay networks

the management processor used on most Hewlett-Packard ProLiant servers

thumb|right|300px|NETCONF protocol layers

ZENworks, a suite of software products developed and maintained by OpenText for computer systems management, aims to manage the entire life cycle of servers, of desktop PCs (Windows, Linux or Mac), of laptops, and of handheld devices such as Android and iOS mobile phones and tablets. Novell planned to include Full Disk Encryption (FDE) functionality within ZENworks. ZENworks supports multiple server platforms and multiple directory services.

former HP network and systems management software products

network monitoring software

Net-SNMP is a suite of software for using and deploying the SNMP protocol (v1, v2c and v3 and the AgentX subagent protocol). It supports IPv4, IPv6, IPX, AAL5, Unix domain sockets and other transports. It contains a generic client library, a suite of command line applications, a highly extensible SNMP agent, perl modules and python modules.

computer system or device without an interactive user interface

OpenNMS is a free and open-source network monitoring and network management platform written in Java. It provides fault management, performance data collection, service monitoring, event processing, and topology mapping. The project was started in July 1999 and registered on SourceForge as project 4141 in March 2000, making it one of the oldest open-source network management platforms.

thumb|Runbook workflow In a computer system or network, a runbook is a compilation of routine procedures and operations that the system administrator or operator carries out. System administrators in IT departments and NOCs use runbooks as a reference.

enabling of code tracing, debugging and profiling in computer programming

in systems management, the use of management interfaces (or serial ports) for managing networking equipment

free tool from Windows Sysinternals, part of the Microsoft TechNet website.