iPXE iPXE (formerly gPXE in 2010, formerly Etherboot) is an open-source Preboot Execution Environment (PXE) implementation and bootloader.
iStumbler iStumbler is an open source utility for finding wireless networks and devices with AirPort- or Bluetooth-enabled Macintosh computers.
JXTA JXTA (Juxtapose) is an open source peer-to-peer protocol specification begun by Sun Microsystems in 2001.
Kdenetwork kdenetwork is a Linux KDE software package to work with network.
Knot DNS In Internet computing, Knot DNS is an open-source server program for the Domain Name System.
kppp kppp is a modem and internet dialer for the KDE system, whose name is an abbreviation for "KDE Point-to-Point Protocol".
l7-filter l7-filter is a software package which provides a classifier for Linux's Netfilter subsystem which can categorize Internet Protocol packets based on their application layer data.
Linux Virtual Server Linux Virtual Server (LVS) is load balancing software for Linux operating systems.
Liquidsoap Liquidsoap is an audio programming language developed initially to produce audio and video source streams sent to an Icecast server.
Loginventory LOGINventory is an agentless network inventory tool written by Schmidt's LOGIN GmbH. LOGINventory is compatible with Windows NT4, Windows 2000, 2003, 2008 (R2), XP, Vista, Windows 7, Windows 8 ...
lsh lsh is a free software implementation of the Secure Shell (SSH) protocol version 2, by the GNU Project inclu...
MaraDNS MaraDNS is an open-source (BSD licensed) Domain Name System (DNS) implementation, which acts as either a caching, recursive, or authoritative nameserver.
mii-tool mii-tool is a Unix command allowing to modify the Network Interface Controller (NIC) parameters.
Miredo Miredo is a Teredo tunneling client designed to allow full IPv6 connectivity to computer systems which are on the IPv4-based Internet but which have no direct native connection to an IPv6 network.
Molins Molins is a framework for PHP 5 that was inspired by Struts, but also has much in common with the other sub-projects of Jakarta like Torque and Commons.
MTR (software) MTR (My traceroute, originally called Matt's traceroute) is a computer program which combines the functionality of the traceroute and ping programs in a single network diagnostic tool.
n2n n2n is an open source Layer 2 over Layer 3 VPN application which utilises a peer-to-peer architecture for network membership and routing.
Nagwin Nagwin is a Windows based distribution of Nagios.
Netfilter Netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack.
Netgraph netgraph is the graph based kernel networking subsystem of FreeBSD. Netgraph provides support for L2TP, PPTP, ATM, bluetooth using a modular set of nodes that are the graph.
netsniff-ng netsniff-ng is a free Linux network analyzer and networking toolkit originally written by Daniel Borkmann.
NetworkManager NetworkManager is a software utility aimed at simplifying the use of computer networks on Linux-based and other Unix-like operating systems.
NSD In Internet computing, NSD (for "name server daemon") is an open-source server program for the Domain Name System.
onTap The onTap framework is a free service-oriented and "full stack" web application framework for ColdFusion.
OpenAFS OpenAFS is an open source implementation of the Andrew distributed file system (AFS).
OpenDNSSEC OpenDNSSEC is a computer program that manages the security of domain names on the Internet.
OpenSSH OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.
Opentracker opentracker is a free (licensed as beerware) BitTorrent peer tracker software (a special kind of HTTP or UDP server software) that is designed to be fast and to have a low consumption of system resources.
Opsview Opsview is a software company specializing in enterprise systems monitoring software for physical, virtual, and cloud-based IT infrastructures. Its headquarters is in Reading, England, with a US office in Woburn, Massachusetts. The product aims to provide a single, unified view of IT operations.
OSSEC OSSEC is a free, open source host-based intrusion detection system (HIDS).
OTRS OTRS, an initialism for Open-source Ticket Request System, is a free and open-source trouble ticket system software package that a company, organization, or other entity can use to assign tickets to incoming queries and track further communications about them.
PacketTrap PacketTrap is a provider of network management and traffic analysis software for midsize companies.
Pandora FMS Pandora FMS (for Pandora Flexible Monitoring System) is software for monitoring computer networks.
Panorama9 Panorama9 is a cloud-based service within enterprise Network management.
pdnsd Pdnsd is a caching DNS proxy server created originally by Thomas Moestl and currently maintained by Paul Rombouts.
PeerTracker PeerTracker is a free (licensed as GPL) BitTorrent peer tracker software written in PHP that is designed to be fast and to have a low consumption of system resources.
Performance Co-Pilot Performance Co-Pilot (a.k.a. PCP) is an open source infrastructure for monitoring, visualizing, recording, responding to, and controlling the status, activity, and performance of networks, computers, applications, and servers.
Plixer International Plixer International, Inc. is a provider of NetFlow and sFlow network analysis and network security monitoring tools among other network management software.
Point-to-Point Protocol daemon PPPD is the Point-to-Point Protocol daemon which is used to manage network connections between two nodes on Unix-like operating systems.
Posadis In computing, Posadis is a GPL-licensed DNS server for Microsoft Windows and Unix that uses a zone file format that is compatible with BIND zone files.
Pound (networking) Pound is a lightweight open source reverse proxy program and application firewall suitable to be used as a web server load balancing solution.
PowerDNS PowerDNS is a DNS server, written in C++ and licensed under the GPL. It runs on most Unix derivatives.
Privoxy Privoxy is a non-caching web proxy with filtering capabilities for enhancing privacy, modifying web page data and HTTP headers before the page is rendered by the browser.
Psiphon Psiphon is an award winning circumvention system that uses a combination of secure communication and obfuscation technologies (VPN, SSH, and HTTP Proxy).
PvPGN PvPGN is a free and open source software project offering emulation of various gaming network servers.
PyGopherd PyGopherd is a modern Internet Gopher server written in Python and is maintained by John Goerzen.
qtdSync QtdSync is a backup client and server based around Rsync.
radvd The Router Advertisement Daemon (radvd) is an open-source software product that implements link-local advertisements of IPv6 router addresses and IPv6 routing prefixes using the Neighbor D...
rdesktop rdesktop is an implementation of a client software for Microsoft's proprietary Remote Desktop Protocol (RDP).
RealVNC RealVNC is a company that provides remote access software.
Response policy zone RPZ (Response Policy Zone) is a mechanism for use by Domain Name System recursive resolvers to allow customised handling of the resolution of collections of domain name information (zones).
rsync rsync is a utility software and network protocol for Unix-like systems (with a port to Microsoft Windows) that synchronizes files and directories from one location to another while minimizing da...
Rsyslog Rsyslog is an open source software utility used on UNIX and Unix-like computer systems for forwarding log messages in an IP network.
Scapy Scapy is a packet manipulation tool for computer networks, written in Python by Philippe Biondi.
Science, Education and Learning in Freedom SELF is an international project financed by the European Commission which has developed a platform to encourage creative cooperation and the sharing of educational materials and continuous trai...
Sharelin Sharelin is a terminal peer-to-peer file sharing client for Unix-derived operating systems.
Slirp Slirp (sometimes capitalized SLiRP) is a software program that emulates a PPP, SLIP, or CSLIP connection to the Internet via a shell account.
Social VPN A social VPN is a virtual private network that is created among individual peers, automatically, based on relationships established by them through a social networking service.
SolarWinds SolarWinds Inc. develops and markets enterprise information technology (IT) infrastructure management software to IT professionals.
Sparrowiq SparrowIQ is a packet-based traffic analysis and network performance monitoring solution that provides network managers with near real-time traffic visibility into network usage based on convers...
squidGuard squidGuard is a URL redirector software, which can be used for content control of websites users can access.
stet (software) stet is a free software package for gathering comments about a text document via a webpage.
Stone (software) Simple Repeater 'stone' is a port forwarding and firewall-breaching software, used to maintain inbound and outbound communication with different network layers and protocols.
Sucuri Sucuri is a company that offers a security service that detects unauthorized changes to network assets, including web sites, DNS, Whois records, SSL certificates and others.
Switzerland (software) Switzerland is an open source network-monitoring utility developed and released by the Electronic Frontier Foundation.
Syndie Syndie is an open source cross-platform computer application to syndicate (re-publish) data (mainly forums) over a variety of anonymous and non-anonymous computer networks.
Syslog-ng syslog-ng is an open source implementation of the Syslog protocol for Unix and Unix-like systems.
Tahoe Least-Authority Filesystem The Tahoe Least-Authority Filesystem (Tahoe-LAFS) is an open source, secure, decentralized, fault-tolerant, peer-to-peer distributed data store and distributed file system.
Tahoe-LAFS The Tahoe Least-Authority Filesystem (Tahoe-LAFS) is an open source, secure, decentralized, fault-tolerant, peer-to-peer filesystem.
Telepathy (software) Telepathy is a software framework which can be used to make software for interpersonal communications such as instant messaging, Voice over IP or videoconferencing.
Thinstation Thinstation is a free and open source Linux implementation of a thin client operating system.
TightVNC TightVNC is a cross-platform free and open-source remote desktop software application that uses and extends VNC's RFB protocol to control another computer's screen remotely.
TinTin++ TinTin++ is a MUD client primarily written for Unix-like systems.
Topsite Templating System The Topsite Templating System is an open source templating system written in the Python programming language.
Tor (anonymity network) Tor (previously TOR, an acronym for The Onion Router) is a free software for enabling online anonymity.
tsclient tsclient is a frontend for rdesktop and other remote desktop tools, which allow remotely controlling one computer from another.
Turtle F2F Turtle was a free anonymous peer-to-peer network project being developed at the Vrije Universiteit in Amsterdam, involving professor Andrew Tanenbaum.
Twisted (software) Twisted is an event-driven network programming framework written in Python and licensed under the MIT License.
uIP (micro IP) The uIP was an open source TCP/IP stack capable of being used with tiny 8- and 16-bit microcontrollers.
Unbound (DNS Server) Unbound is a validating, recursive, and caching DNS server software product from NLnet Labs, VeriSign Inc., Nominet, and Kirei.
V9fs Plan 9 from User Space (also plan9port or p9p) is a port of many Plan 9 from Bell Labs libraries and applications to Unix-like operating systems.
VDownloader VDownloader is software originally developed by Enrique Puertas Sanz, an ICT professor at the Universidad Europea de Madrid.
Vinagre Vinagre is a VNC, SSH, RDP and SPICE client for the GNOME desktop environment.
Virtual Network Computing In computing, Virtual Network Computing (VNC) is a graphical desktop sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer.
WhatsUp Gold WhatsUp Gold is a network management and monitoring software developed by Ipswitch, Inc. Founded in 1991, Ipswitch, Inc. is a privately owned company that is headquartered in Lexington, Massachu...
Wicd Wicd, which stands for Wireless Interface Connection Daemon, is an open source software utility to manage both wireless and wired networks for Linux.