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

  • PRTG Catches Network Issues Before They Cause Downtime Icon
    PRTG Catches Network Issues Before They Cause Downtime

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    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

    tn5250

    5250 telnet client

    tn5250 emulates a 5250 terminal or printer over telnet, for connecting to IBM Power Systems, iSeries and AS/400 computers running IBM i, i5/OS and OS/400. It runs on any Unix or Windows system. Note that this project is now on GitHub at https://github.com/tn5250/tn5250
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    Downloads: 50,399 This Week
    Last Update:
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  • 2

    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
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  • 3
    SSVNC adds encryption security to VNC. It provides a GUI for Windows, MacOSX, and Unix that automatically starts up an SSL or SSH tunnel for connections to any VNC server. It also supports VeNCrypt encryption. The Unix viewer has many new features.
    Downloads: 32 This Week
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  • 4
    PuTTY SSH client for Symbian OS
    Downloads: 20 This Week
    Last Update:
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 5
    Qodem Terminal Emulator
    Qodem is a a terminal emulator that resembles the BBS-era Qmodem. Includes phonebook, scrollback, capture, X/Y/Zmodem, Kermit, ANSI (+ music) / Avatar / VT102 / Linux emulation, Unicode, and keyboard macros. Connects over serial, ssh, telnet, rlogin.
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    Downloads: 27 This Week
    Last Update:
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  • 6
    basE91 is an advanced method for encoding binary data as ASCII characters. It is similar to UUencode or base64, but is more efficient. The overhead produced by basE91 depends on the input data. It amounts at most to 23% and can range down to 14%.
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    Downloads: 50 This Week
    Last Update:
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  • 7

    Serial Console (sc)

    Minimal terminal program to get access to a serial console

    serialconsole (sc) is a minimal terminal program allowing to use one machine to access the serial console of another machine.
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    Downloads: 37 This Week
    Last Update:
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  • 8
    atinout

    atinout

    AT commands as input are sent to modem and responses given as output.

    This program will read a file (or stdin) containing a list of AT commands. Each command will be send to the modem, and all the response for the command will be output to file (or stdout). Example, to hang up any ongoing call: $ echo ATH | atinout - /dev/ttyACM0 - ATH OK $
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    Downloads: 24 This Week
    Last Update:
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  • 9

    The Clans BBS Door Game

    InterBBS medieval door game

    The Clans was a popular game written for online BBSes back in the day of their great popularity. It is a text-based game featuring inter-BBS communications. It was written initially for Turbo C++, but has been ported to gcc and MSVC
    Downloads: 19 This Week
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  • Demo Series - Small Business Backup By Veeam Icon
    Demo Series - Small Business Backup By Veeam

    Learn how to protect your Microsoft 365 data, with simple, actionable tips today.

    Watch this on-demand demo series and learn how to protect your Microsoft 365 data with clear, simple, actionable steps that are easy to implement for businesses of all sizes.
    Watch Demo Series
  • 10
    rtnppd is able to route TNPP 3.8 (Telocator Network Paging Protocol) packets between serial links and other rtnppd programs (over an IP-network). Also includes rtapd daemon for routing packets to rtnppd.
    Downloads: 7 This Week
    Last Update:
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  • 11
    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
    Last Update:
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  • 12
    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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  • 13
    OpenGtalk (Aka: "GinsuTalk") is a telnet based BBS chat system, with similarities to IRC and DDial.
    Downloads: 1 This Week
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  • 14
    Manages a pool of modems. Boots off a single disk. Allows protocols other than ppp.
    Downloads: 0 This Week
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  • 15
    Atani Software has a primary focus of developing games for various platforms and also try to keep the good old BBS' alive with releases of door games, etc.
    Downloads: 0 This Week
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  • 16
    Communication protocol for advanced clients of talker Atlantis (now running at atlantis.talker.sk). No implementation. No source code. Only specfication.
    Downloads: 0 This Week
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  • 17
    Colour ECMA-48/ANSI compatible telnet terminal for Win32/95/etc.
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    Downloads: 0 This Week
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  • 18
    Columbo Simple Serial Library is an easy to use, event driven serial port communication library for Linux.
    Downloads: 0 This Week
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  • 19

    ConnectionRedirecting

    The ConnectionRedirecting can do manual connection redirect.

    The ConnectionRedirecting program can redirect tcp connection. Program uses development version of SFENCE dynamic library.
    Downloads: 0 This Week
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  • 20
    Pure object based operating environment, script language, shell, loads plugins to extend functionality, it's a MUD gone awry.
    Downloads: 0 This Week
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  • 21
    Dzcomm is an RS-232 API for as many OS / platforms as we can achieve. Originally designed to work on DOS alongside the allegro games programming library it can now work work alongside it as well as independently of it and works on some unixes as well.
    Downloads: 0 This Week
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  • 22
    FUNterm is a serial port terminal program for Windows. It offers basic serial connection. Because FUNterm is written using basic Win32 calls, with no high-level libraries, it works under Linux using Wine. The serial driver can be used separately.
    Downloads: 0 This Week
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  • 23
    GNU Pipo BBS version 2. A full featured, traditionally styled BBS with support for TELNET, SSH, and HTTP connections, doors, customization, and lots of ANSI art. Runs on Windows, Linux, Mac OS X, and other operating systems. GPL.
    Downloads: 0 This Week
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  • 24
    ICUC, (I see, you see) means "What I see, is you see". ICUC allows 2 or more guys to share 1 telnet connnetion. it's also a detachable BBS(telnet) proxy server. What's more, there are timer and trigger to use, user can make a telnet rubost easily.
    Downloads: 0 This Week
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  • 25
    ILM is a utility for the ISDN Line Monitor, an ISDN line monitoring hardware sold by many dealers in central europe. (e.g. Conrad and EgTel). It provides functions to: - retrieve all recorded information - erase all recorded information - config
    Downloads: 0 This Week
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