an excellent commercial X Window System version 11 release 6 (X11R6.1) server hot
FreeRADIUS is a modular, high performance free RADIUS suite. This software allows authentication and authorization for a network to be centralized, and minimizes the number of changes that have to be done when adding or deleting new users to a network. Read more hot
Samba is an Open Source/Free Software suite that has, since 1992, provided file and print services to all manner of SMB/CIFS clients, including the numerous versions of Microsoft Windows operating systems. Samba is freely available under the GNU General Public License. Read more hot
VNC is a remote display system which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. Read more hot
a freely redistributable open-source implementation of the X Window System. XFree86 runs primarily on UNIX® and UNIX-like operating systems such as Linux, all of the BSD variants, Sun Solaris x86, Mac OS X (via Darwin), as well as other platforms like OS/2 and Cygwin. XFree86, provides a client/server interface between display hardware (the mouse, keyboard, and video displays) and the desktop environment while also providing both the windowing infrastructure and a standardized application interface (API). XFree86 is platform-independent, network-transparent and extensible hot
389 Directory Server
389 Directory Server (formerly Fedora Directory Server) is a full-featured LDAPv3 compliant server. In addition to the standard LDAPv3 operations, it supports multi-master replication, fully online configuration... and administration, chaining, virtual attributes, access control directives in the data, Virtual List View, server-side sorting, SASL, TLS/SSL, and many other features.
(commercial) offering OpenGL hardware acceleration for a range of 3D Graphics chips. Several product variations are available. The least expensive Gamer Edition is intended for applications needing single window use of hardware accelerated OpenGL. The Professional Edition offers support for more complex display options on high end graphics boards, such as animated shaped X Windows overlapping multiple moving 3D windows
(commercial) includes 2D and 3D support for over
30 cards and laptops and is comprised of four Series-Desktop, Laptop, Multi-head, and Workstation. New and
enhanced features include: 3D stereo (on most cards), Color Magic, Graphical Setup, Video Window, and Power Throttle
The Amahi Home Server is a "Home Digital Assistant," or HDA. It's a server targeted for home and home office environments. It provides calendaring, a wiki, shared network storage, network backups, a printer server, remote access, and more.
Antinat is a flexible SOCKS server and client library for writing proxy-based applications. It supports SOCKS 4, SOCKS 4a, SOCKS 5, authentication, CHAP, XML firewalling, Win32, server chaining, and UDP. It also contains very experimental IPv6 support.
Aradial radius server
(commercial) Developers of radius server software solution for ISP/WISP/VOIP/Hotspots(WLAN). Aradial radius server has integration with 3'rd party isp billing and prepaid solutions.
Runs: Windows, Linux, Solaris and other UNIX.
Archiveopteryx is an Internet mail server, optimized to support heavy usage and long-term archiving. It stores mail in a PostgreSQL database, and provides access to it through IMAP, POP, and more.
Atlantis Talker is a telnet-based chat server with features like message boards, a mail system, games, and rooms, all in plain ASCII.
AXIGEN Mail Server
(commercial) AXIGEN is a fast, reliable and secure mail server on Linux, with an open architecture, designed for easy management allows full control of the email traffic from central WEB /CLI Admin module.
Providing ESMTP, IMAP, POP3 services, AXIGEN is tested for the standard mail clients and special Webmail module enables email access and delivery from internet browsers.
the design of the "Simple Blinkenlights Transfer Protocol" and the implementation of a server that can handle all of its features
BNC is a simple program designed to Proxy irc sessions.
an attempt at writing a Battle.net compatible server
Brunhilde is a robust mp3 server with a simple and elegant design.
BSDRadius is an open source Radius server targeted for use in Voice over IP (VoIP) applications. Read more
(commercial) a font server for Linux. btX gives Linux the same font presentation as that found on the Macintosh and on Windows. With btX, developers can render hinted, anti-aliased, and kerned characters, producing great looking text on screen
Business Oriented Framework
Business Oriented Framework (BOF) is a Perl application server. It uses SOAP, optionally secured with SSL, to communicate with the client. The client can use SOAP::Lite or the client module included in BOF, making it easy to connect to the server.
cd-server is an application that allows the ability to run a website completely off a CD/DVD-ROM disc. The cd-server is powered by several other open source projects, Apache, Perl, mod_perl, PHP, and MySQL.
a pair of programs which are used to maintain the accuracy of the system clock on a computer. The two programs are called chronyd and chronyc. Chronyd is a background (daemon) program, which can be started at boot time. Chronyc provides a user interface to chronyd for monitoring its performance and configuring various settings
Cistron RADIUS server
mostly compatable with Livingston's 'radiusd-2.01', except without the s/key or menu support. It has additional features such as multiple DEFAULT entries with fall-through, limiting connections on a per-user basis or per-hunt group basis, and much more
Collax Business Server
Collax Business Server is an all-in-one Linux server for small- and medium-sized businesses.
Internet Messaging Server for Linux and other platforms. Optimized in design to provide access to hundreds of thousand accounts and relay mail on the most heavily loaded sites.
Courier-IMAP is a server that provides IMAP access to Maildir mailboxes. This IMAP server does NOT handle traditional mailbox files (/var/spool/mail, and derivatives),
it was written for the specific purpose of providing IMAP access to Maildirs.
an openPGP (RFC2440) compliant public key server. It is currently under development. It is written in C, and runs on Linux
a secure bridge for cvs pservers
DeleGate is a multi-purpose application level gateway, or a proxy server which runs on multiple platforms (Unix, Windows, MacOS X and OS/2). DeleGate mediates communication of various protocols (HTTP, FTP, NNTP, SMTP, POP, IMAP, LDAP, Telnet, SOCKS, DNS, etc.), applying cache and conversion for mediated data, controlling access from clients and routing toward servers. It translates protocols between clients and servers, applying SSL(TLS) to arbitrary protocols, merging several servers into a single server view with aliasing and filtering. Born as a tiny proxy for Gopher in March 1994, it has steadily grown into a general purpose proxy server. Besides beeing a proxy, DeleGate can be used as a simple origin server for some protocols (HTTP, FTP and NNTP).
Dents is a server for the DNS protocol as specified in RFC 1035 et al.; it is licensed under the terms of the GNU GPLv2.
an easy-to-use and affordable communication server that can handle all the communication and collaboration needs of your company. Now you can install a highly productive environment in minutes, using a single integrated product that enables you and your coworkers to collaborate and share knowledge
Dev9 is a Linux /dev manager. The idea is to write a 9p2000.u server that ends up providing the same functionality as a combined devfs and udev.
a replacement for INND: a backbone news transit system
a server which supports the DICT protocol
DictD++ is a fast, feature-rich, and portable dictionary server that implements the DICT protocol. It supports Unicode plus all encodings present in ICU, different matching strategies, dictd-compatible dictionaries and indices, and definitions transformations prior to sending them to the client.
DinX, an experimental windowing system. DinX is designed to be simple, lightweight, and fast. It should be suitable for running multiple windowed programs on a small system, like a Linux handheld. DinX uses the Linux kernel's framebuffer video driver. It adds two new interfaces, /dev/dinxsvr and /dev/dinxwin. A server program connects to /dev/dinxsvr and arbitrates requests from windows to occupy various parts of the display.
(commercial) an advanced email server package. It provides a complete internet mail solution for sending and receiving email across your organization, and over the internet
an XML-RPC server allowing whois lookups on a wide range of domain types, supporting both traditional whois and Web-based lookups. It supports recursion for 'thin' domain registries (e.g. com) and tries to decode the raw whois data into a form to allow easier understanding of automated processes
a caching name server for use on dial-up gateway machines designed to behave nicely when the gateway is not connected
Dropbear SSH Server
implements most required features of the SSH 2 protocol, and other features such as X11 and Authentication Agent forwarding. Dropbear is Open Source software, distributed under a MIT-style license
the server component of the Embedded Linux MP3 Player, TNG
a multi-input/output service server: Users can request / receive results with http, ftp or email connection;
This server is a full multi-thread JAVA server using database (mysql support), POP3, SMTP protocols
EtherMux Server is a client-server implementation of a DMX512 lighting remote. Desgined for use on PocketPC based devices (eg iPAQ) it can easyly be ported to other platforms. The server end runs on a Linux PC with DMX4Linux and a DMX interface card.
EZblue Business Server
(commercial) EZblue Business Server is a complete software package consisting of the EZblue Linux OS, a Debian-based Linux.
ezbounce is a highly configurable IRC proxy that has password protection, numerous tweakable settings, remote administration and access control (ban lists and allow lists).
(commercial) a High Availability / Cluster software solution specialized for server applications and integrated with the characteristics of the operating system
a free Linux-based software implementing virtual servers technology, a cost-effective and resource-saving solution that runs virtually isolated full-featured standalone Linux servers on one host box
ftp4all is a FTP server program for UNIX systems. Unlike existing FTP servers, e.g. WUFTPD, FTP4ALL does not require an root account to install it.
Gearmand is the job server component of Gearman. Gearman provides a generic framework to farm out work to other machines, dispatching function calls to machines that are better suited to do work, to do work in parallel, to balance the load of processing, or to call functions between languages.