Browse free open source C Internet Software and projects below. Use the toggles on the left to filter open source C Internet Software by OS, license, language, programming language, and project status.

  • Paessler - Monitor Your Whole Network in Minutes Icon
    Paessler - Monitor Your Whole Network in Minutes

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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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  • 1

    SyncTERM

    Cross-platform BBS (ANSI) Terminal

    A cross-platform ANSI-BBS terminal designed to connect to remote BBSs via telnet, rlogin, or SSH. Supports ANSI music and the IBM charset when possible. Will run from a console, under X11 using XLib, or using SDL.
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    Downloads: 422 This Week
    Last Update:
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  • 2
    This program allows you to use SSH, TELNET, VNC, FTP and any other Internet application from behind HTTP(HTTPS) and SOCKS(4/5) proxy servers. This "proxifier" provides proxy server support to any app.
    Downloads: 23 This Week
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  • 3
    tcpick is a textmode sniffer; it tracks tcp streams, shows the status, reassembles and saves the data captured in files or displays them in the terminal in different modes (ascii, hex..). There is a color-mode. Useful to get files passively.
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    Downloads: 20 This Week
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  • 4
    A Free SOCKS proxy server for Linux, macos and FreeBSD
    Downloads: 16 This Week
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  • Veeam Data Platform v13.1 - Get Your Free Trial Icon
    Veeam Data Platform v13.1 - Get Your Free Trial

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  • 5
    The program thrulay is used to measure the capacity, delay, and other performance metrics of a network by sending a bulk TCP or UDP stream over it.
    Downloads: 7 This Week
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  • 6
    librsync has moved to https://github.com/librsync/librsync
    Downloads: 3 This Week
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  • 7
    OpenChange Project

    OpenChange Project

    Microsoft Exchange compatible server and client libraries

    OpenChange is a portable Open Source implementation of Microsoft Exchange server and Exchange protocols. It provides a complete solution to interoperate with Microsoft Outlook clients or Microsoft Exchange servers. OpenChange client-side library is used in existing messaging clients and is the solution in new projects to communicate natively with Microsoft Exchange and Exchange-compatible servers. OpenChange server is a transparent Microsoft Exchange server replacement using native Exchange protocols and does not require any plugin installation in Outlook.
    Downloads: 2 This Week
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  • 8
    A varity of IRC related services from: SMSServ Anope Modules/Modified Anope(AbAnope) to Unreal Modules/Modified Unreal(AbUnreal) to an IRC based RPG with addon packs, and web items: AbBash & PeerWars irc.abducted.us #abducted - http://dev.abducted.us
    Downloads: 5 This Week
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  • 9
    Eggdrop
    Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
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    Downloads: 5 This Week
    Last Update:
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  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

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  • 10
    A portable, modular and efficient ftp server, supporting SSL, IPv6, UTF-8 compliant, multithreaded, modules ,externals scripts. unix-like permissions+acls, virtual users/groups, security, speed, bandwith limitation (user,group,global), group admins, per
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    Downloads: 5 This Week
    Last Update:
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  • 11

    Darkbot

    The IRC's Talking Robot

    [ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
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    Downloads: 4 This Week
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  • 12

    Meanwhile

    Open implementation of the Lotus Sametime protocol

    THIS PROJECT HAS MOVED Please visit https://github.com/obriencj/meanwhile The Meanwhile project is an open implementation of the Lotus Sametime client protocol. The project provides a library written in C, a python module, and a Gaim plugin utilizing the library.
    Downloads: 4 This Week
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  • 13
    Termix is a Linux (UNIX) telnet client designed for calling telnet BBS,and SCO ANSI. It aims to behave as DOS terminals did; with proper ANSI parsing, scrolling, and character sets -- all in a DOS terminal-like application
    Downloads: 4 This Week
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  • 14
    Zeroconf networking allows easy connection of hosts without needing to setup DHCP servers or assign static IPs. This project is intended to provide support for Zeroconf (http://www.zeroconf.org) networking for Linux and Unix machines.
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    Downloads: 3 This Week
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  • 15
    A Graphical FTP client for GNOME featuring transfer resuming, transfer queue, drag-n-drop and proxy support.
    Downloads: 2 This Week
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  • 16
    SSHDOS is a DOS port of SSH, SCP, SFTP and Telnet clients. Needs a packet driver (or a PPP driver for dialup connection) only. There are two separate packages for SSH1 and for SSH2.
    Downloads: 1 This Week
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  • 17
    HTTP Proxy Client is the set of libraries and scripts, provides transparent access to Internet via HTTP proxy tunnel for programms, which uses TCP/IP for communication. The tunnel provided by CONNECT method of HTTP proxy. Supported external DNS resolving.
    Downloads: 1 This Week
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  • 18
    The IS-IS (isis) routing protocol for the zebra routing software.
    Downloads: 1 This Week
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  • 19
    gtkdial is a lightweight, simple front-end to the wvdial intelligent PPP dialer from Worldvisions (http://www.worldvisions.ca). It is of particular use to GNOME users who have several dial-up accounts and need to connect or disconnect regularly.
    Downloads: 1 This Week
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  • 20
    Library for RTP (Real Time Protocol, RFC 1889) used by gnome-o-phone
    Downloads: 1 This Week
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  • 21
    This is a console UNIX client for updating weblogs. It is designed to be used interactively or as a UNX-style filter on the command line.
    Downloads: 0 This Week
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  • 22
    A Twitter client for MorphOS, AmigaOS 3.x and AmigaOS 4.1 - AmiTwitter is a small program which allows you to interact with the Twitter and TwitPic networks. It has many features, in fact, it has more features than most other open source clients.
    Downloads: 0 This Week
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  • 23
    Asynchronous I/O server
    Downloads: 0 This Week
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  • 24
    AUC for Education is an GPLed intranet system designed for use in a K-12 setting that provides a web-based environment for students and teachers to interact via "Interactive Classrooms" and other innovative features.
    Downloads: 0 This Week
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  • 25
    A C/C++ based client and server implementation of the OGSA Basic Execution Service, used to provide a Web Services interface to distributed resource managers such as Platform LSF and PBS/PBS Pro. The SOAP stack is provided by the gSOAP toolkit.
    Downloads: 0 This Week
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