Internet Protocol based network software

Telnet (sometimes stylized TELNET) is a client-server application protocol that provides access to virtual terminals of remote systems on local area networks or the Internet. It is a protocol for bidirectional 8-bit communications. Its main goal was to connect terminal devices and terminal-oriented processes.

thumb|upright=1.3|A 2004 discussion in the Usenet group comp.text.tex thumb|A diagram of Usenet servers and clients. The coloured dots on the servers represent the newsgroups they carry. Coloured arrows between servers indicate newsgroup content exchanges (news feeds). Arrows between clients and servers indicate that a user is subscribed to a certain newsgroup and reads or submits articles there.Notably, clients never connect with each other, but still have access to each other's posts even when they also never connect to the same server.

computer network administration utility used to test the reachability of a host

software framework for real-time collaborative editing online

specific implementation of a network file system, originally developed by Sun in 1984, later standardised by IETF

application designed to probe for open ports

virtual private network (VPN) application

computer software for running local area networks

Microsoft Office suite application to design rich XML-based forms

Operating system

system for converting computers’ names to their numeric addresses

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."

Zabbix is an open-source monitoring platform for networks, servers, virtual machines, and cloud services. It collects metrics via SNMP, IPMI, JMX, and custom agents, then stores the data in a relational database and provides alerting, visualization, and reporting through a web-based frontend.

nslookup (from name server lookup) is a network administration command-line tool for querying the Domain Name System (DNS) to obtain the mapping between domain name and IP address, or other DNS records.

thumb | right | alt=A computer CAPTCHA test | A computer CAPTCHA test A spambot is a computer program designed to facilitate spam. Spambots create accounts and usually send unsolicited messages to other users. Web hosts and website operators have banned spammers, resulting in an ongoing battle as spammers try to circumvent bans and anti-spam measures, while hosts work to prevent these tactics.

cFosSpeed is a traffic shaping app for the Windows operating system. It installs a device driver on the network stack to perform stateful packet inspection on the application layer traffic. It has been noted as causing some issues with network connections, and can be difficult to uninstall.

thumb|RRDtool has a graph function, which presents data from an RRD in a customizable graphical format.

Shoutcast (formerly SHOUTcast) is a service for streaming media over the internet to media players, using its own cross-platform proprietary software. It allows digital audio content, primarily in MP3 or High-Efficiency Advanced Audio Coding format. The most common use of Shoutcast is for creating or listening to Internet audio broadcasts; however, there are also video streams. The software is available to use for free or as a paid cloud service with additional professional features.

trend description & measurement

thumb|right|300px|Transfers in an openMosix cluster.

access control list software

communications protocol

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.

NetFlow is a feature that was introduced on Cisco routers around 1996 that provides the ability to collect IP network traffic as it enters or exits an interface. By analyzing the data provided by NetFlow, a network administrator can determine things such as the source and destination traffic, class of service, and the causes of congestion. A typical flow monitoring setup (using NetFlow) consists of three main components:

Fail2Ban is an intrusion prevention software framework. Written in the Python programming language, it is designed to prevent brute-force attacks. It is able to run on POSIX systems that have an interface to a packet-control system or firewall installed locally, such as iptables or TCP Wrapper.

The term Listserv (styled by the registered trademark licensee, L-Soft International, Inc., as LISTSERV) has been used to refer to electronic mailing list software applications in general, but is more properly applied to a few early instances of such software, which allows a sender to send one email to a list, which then transparently sends it on to the addresses of the subscribers to the list.

free open source RRDtool

set of client and server services by Microsoft

iproute2 is a collection of userspace utilities for controlling and monitoring various aspects of networking in the Linux kernel, including routing, network interfaces, tunnels, traffic control, and network-related device drivers.

controlling a computer remotely for administrative purposes

anonymized email sending service

UltraVNC (sometimes written uVNC) is an open-source remote-administration/remote-desktop-software utility.

interface to data link layers on a Unix-like system

IPFilter (commonly referred to as ipf) is an open-source software package that provides firewall services and network address translation (NAT) for many Unix-like operating systems. The author and software maintainer is Darren Reed. IPFilter supports both IPv4 and IPv6 protocols, and is a stateful firewall.

security component that augments a firewall or NAT employed in a computer network

computer operating system command

computer server dedicated for the purpose of administering other computer networks and systems

combining hardware and software network resources and network functionality into a single administrative entity

Metalink is an extensible metadata file format that describes one or more computer files available for download. It specifies files appropriate for a user's language and operating system; facilitates file verification and recovery from data corruption; and lists alternate download sources (mirror URIs).

Plan 9 filesystem protocol

arping is a software utility for discovering hosts on a computer network by sending link layer frames using Address Resolution Protocol (ARP) requests addressed to a host identified by its MAC address. The utility may use ARP to resolve an IP address provided by the user.

MOSIX is a proprietary distributed operating system. Although early versions were based on older UNIX systems, since 1999 it focuses on Linux clusters and grids. In a MOSIX cluster/grid there is no need to modify or to link applications with any library, to copy files or login to remote nodes, or even to assign processes to different nodes – it is all done automatically, like in an SMP.

open source network/system monitoring application

graphical controller for the Tor software

system that, when connecting to another system, attempts to encrypt the communications channel, otherwise falling back to unencrypted communications

In computer networking, TUN and TAP are kernel virtual network devices. Being network devices supported entirely in software, they differ from ordinary network devices which are backed by physical network adapters.

thumb|upright=1.9|Principle of super-server thumb|upright=1.9|Example of a server running Secure Shell|sshd (port 22), identd (port 113), ftpd (port 21) and httpd (port 80) A super-server, sometimes called a service dispatcher, is a type of daemon run generally on Unix-like systems.

RealVNC is a company that provides remote access software. Their VNC Connect software consists of a server (VNC Server) and client (VNC Viewer) application, which exchange data over the RFB protocol to allow the Viewer to control the Server's screen remotely. The application is used, for example, by IT support engineers to provide helpdesk services to remote users.

The PathPing command is a command-line network utility included in Windows NT operating systems since Windows 2000 that combines the functionality of ping with that of tracert. It is used to locate spots that have network latency and network loss.

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.

vulnerability scanner for networks

defunct IBM file system project

OSSEC (Open Source HIDS SECurity) is a free, open-source host-based intrusion detection system (HIDS). It performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. It provides intrusion detection for most operating systems, including Linux, OpenBSD, FreeBSD, OS X, Solaris and Windows. OSSEC has a centralized, cross-platform architecture allowing multiple systems to be easily monitored and managed. OSSEC has a log analysis engine that is able to correlate and analyze logs from multiple devices and formats.

computer-related activity

open source mesh networking protocol and software

free software

Mixminion is the standard implementation of the Type III anonymous remailer protocol. Mixminion can send and receive anonymous e-mail.

Wikimedia list article

monitoring application

Connect:Direct—originally named Network Data Mover (NDM)—is a computer software product that transfers files between mainframe computers and/or midrange computers. It was developed for mainframes, with other platforms being added as the product grew. NDM was renamed to Connect:Direct in 1993, following the acquisition of Systems Center, Inc. by Sterling Software. In 1996, Sterling Software executed a public spinoff of a new entity called Sterling Commerce, which consisted of the Communications Software Group (the business unit responsible for marketing the Connect:Direct product and other file