Opensourceinfo

aria2 is a utility for downloading files. It has completely new design concept from its predecessor, Aria, and is written from scratch. aria2 has a segmented downloading engine in its core. It can download one file from multiple URLs or multiple connections from one URL. This results in very high speed downloading, much faster than ordinary browsers. This engine in was implemented in a single-thread model. The architecture is clean and easy to extend.

Asterisk is a complete PBX in software. It runs on Linux, BSD and MacOSX and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in many protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware. It has many advanced features such as a codec translation API. The base distribution includes several channel backends, as well as applications. However, the beauty of Asterisk is its ability to be extended using its APIs, dynamic module loader, and AGI scripting interface. End users can even write their own applications that run on the system in C or any scripting language of their choice.

Bayonne is the telephony server of the GNU project. It offers a script-driven threaded multi-line state event telephony service on GNU/Linux, xBSD, and Microsoft Windows for building voice response systems, and uses telephony plugins for runtime driver configuration. It also features "TGI" for making Perl applications "telephony aware". It may be used to build telephony-based system administration, home automation, automated attendant, v-commerce, and voice messaging systems.

Drivel is a GNOME client for working with online journals, also known as weblogs or simply blogs. It retains a simple and elegant design while providing many powerful features, including support for LiveJournal, Blogger, MovableType, Advogato, and Atom journals. (Systems based off these are also supported, including WordPress and Drupal.)

Ekiga is a SIP and H.323 compatible VoIP, IP Telephony, and Video Conferencing application that allows you to make audio and video calls to remote users with SIP or H.323 hardware and software. It supports all modern VoIP features for both SIP and H.323.

ferm is a tool to maintain and setup complicated firewall rules. It allows one to reduce the tedious task of carefully inserting rules and chains, thus enabling the firewall administrator to spend more time on developing good rules, and less time on the proper implementation of those rules. These rules will be executed by the preferred kernel interface, such as ipchains and iptables, and in one pass. Firewall rules can also be split into different files and loaded at will.

HTTPTunnel is a simple client/server application for creating an HTTP tunnel between two machines, optionally via a Web proxy. This tunnel can then be used to wrap arbitrary TCP socket traffic in HTTP, thus allowing communications even through a restrictive firewall that only allows outgoing HTTP connections.

HylaFAX is a fax and paging system for Unix. It supports sending facsimile, receiving facsimile, polled retrieval of facsimile, transparent shared data use of the modem and sending alpha-numeric pages. The software is structured around a client-server architecture. Fax modems may reside on a single machine on a network and clients can submit outbound jobs from any machine that can communicate with the machine on which the modems reside. An access control mechanism is included to control which users on which machines may access a server.

KVpnc is a KDE frontend for various VPN clients. It supports Cisco VPN (vpnc) and IPSec (FreeS/WAN, racoon). vpnc is a replacement for the Cisco VPN client, and is used as client for the cisco3000 VPN Concentrator. FreeS/WAN (OpenS/WAN) is a IPSec client for Linux 2.4.x, and raccoon is a IPSec client for Linux 2.6.x and *BSD. It also supports PPTP (pptpclient) and OpenVPN.

Linphone is an Internet phone with a GNOME and a console interface. It let you make two-party calls over IP networks such as the Internet. It uses the IETF protocols SIP (Session Initiation Protocol) and RTP (Realtime Transport Protocol) to make calls, so it should be able to communicate with other SIP-based Web phones. With several codecs available, it can be used with high speed connections as well as 28k modems.

MindTerm is a complete ssh-client in pure Java. It can be used either as a standalone Java application or as a Java applet. Three packages of importance are provided (terminal, ssh, and security). The terminal package is a rather complete vt102/xterm-terminal, and the ssh-package contains the ssh- protocol and also "drop-in" socket replacements to use ssh-tunnels transparently from a Java application/applet. It also contains functionality to realize a ssh-server. Finally, the security package contains RSA, DES, 3DES, Blowfish, IDEA, and RC4 ciphers.

OpenNTPd is a portable implementation of the Network Time Protocol ported from OpenBSD. It provides the ability to sync the local clock to remote NTP servers and can act as an NTP server itself, redistributing the local clock.

Openswan is an implementation of IPsec for the Linux operating system. Is it a code fork of the FreeS/WAN project which has been terminated. It provides IPSEC (IP Security, which is both encryption and authentication) kernel extensions and an IKE (Internet Key Exchange, keying and encrypted routing daemon), as well as various rc scripts and documentation. It is known to interoperate with other IPSEC and IKE systems already deployed by other vendors such as OpenBSD, Cisco, and CheckPoint. It features Opportunistic Encryption, subnet extrusion, X.509 certificates, NAT Traversal support, XAUTH, and DNSSEC support.

Samba is an software suite that provides seamless file and print services to SMB/CIFS clients. It is freely available, unlike other SMB/CIFS implementations, and allows for interoperability between Linux/Unix servers and Windows-based clients.

shmux is a program for executing the same command on many hosts in parallel. For each target, a child process is spawned by shmux, and a shell on the target obtained one of the supported methods: rsh, ssh, or sh. The output produced by the children is received by shmux and either output in turn to the user in an easy to read format, or written to files for later processing, making it well suited for use in scripts.

Smb4K is a SMB and CIFS (Windows) share browser for KDE. It uses the Samba software suite to access the SMB and CIFS shares of the local network neighborhood. Its purpose is to provide a program that's easy to use and has as many features as possible.

Socat is a relay for bidirectional data transfer between two independent data channels. Each of these data channels may be a file, pipe, device (terminal or modem, etc.), socket (Unix, IP4, IP6 - raw, UDP, TCP), a client for SOCKS4, proxy CONNECT, or SSL, etc. It provides forking, logging, and dumping, different modes for interprocess communication, and many more options. It can be used, for example, as a TCP relay (one-shot or daemon), as a daemon-based socksifier, as a shell interface to Unix sockets, as an IP6 relay, for redirecting TCP-oriented programs to a serial line, or to establish a relatively secure environment (su and chroot) for running client or server shell scripts with network connections.

strongSwan is a complete IPsec and IKEv1 implementation for Linux 2.4 and 2.6 kernels. It interoperates with most other IPsec-based VPN products. It is a descendant of the discontinued FreeS/WAN project. The focus of the strongSwan project is on strong authentication mechanisms using X.509 public key certificates and optional secure storage of private keys on smartcards through a standardized PKCS#11 interface. A unique feature is the use of X.509 attribute certificates to implement advanced access control schemes based on group memberships.

TightVNC is a VNC distribution with many new features, improvements, and bugfixes over VNC. It is optimized for faster operation on slow network links such as modem connections, provides more configuration options in the server, features automatic SSH tunneling in the Unix vncviewer, and more. The modified servers and viewers are fully compatible with the original VNC software.