Freeware: Tcp

	Speed Limiter  License: Freeware
	Speed Limiter can simulate slow TCP/IP connections. Use Speed Limiter for example to see how long a website have to load on slow connections. Or test your software with slow TCP/IP connections. Author: delight software gmbh| Date: 09-03-2004 | Size: 1660 KB
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	Network Commander  License: Freeware
	This application was written due to a lot of frustration from my side, I have been working a lot with network configurations, routers setup (networking maintenance, in general). I didn’t have any good tool that will help me with the little things. I hate going to command prompt and run programs like, ping, tracert, net stat, etc. While administrating couple of small networks, I found out that it will be much more easier to keep all of the clients well updated by enabling the option of controlling them remotely. Of course there are a lot of software out there that can remotely control a client but I wanted the process to be transparent to the client side. I wanted something that will give me the ability of installing software on the remote side without kicking the user out from its own machine (for example, installing an update of virus definitions). Installing client side software was out of the question, I don't like to walk to each and every computer on the network and installing a "listening" software manually. The Network Commander is able to connect to any client on the network, executing processes, ending processes, running DOS commands and more just at a click of a button from the server side. Couple of more convenient features where implemented to make your life much more easier: port scanner, that can scan a range of IP address for open/closed ports, network utilization that can enumerate the current network usage, TCP/UDP/ICMP/IP statistics for the current machine and more.. Author: Private Programmer| Date: 25-09-2004 | Size: 9063 KB
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	Bandwidth Vista  License: Freeware
	Bandwidth Vista 2, The Next Generation bandwidth monitor with GEO-IP Connection Mapper. Displays Real-Time TCP and UDP Connections including Country and City. Holds a full log of bandwidth usage. New to Bandwidth Vista 2 is Voice Alerts and a Whois Lookup Tool and two kinds of graph. Bandwidth Vista 2 runs quietly from the system tray displaying network activity while you work or you can show the full world map of your connections, set an email alert, voice alert or popup and so much more.... Author: Bandwidth Vista 2| Date: 10-11-2007 | Size: 17000 KB
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	Kiwi Syslog Daemon Service  License: Freeware
	Kiwi Syslog Daemon is a freeware Syslog Daemon for the Windows platform. It receives, logs, displays and forwards Syslog messages from hosts such as routers, switches, Unix hosts and any other syslog enabled device. There are many customisable options available. Features include: PIX firewall logging, LinkSys home firewall logging, SNMP Trap and TCP support, MIB parsing, Abilty to Filter - parse - modify messages and take actions via VBScript/JScript engine. The registered version has additional features. Author: Andrew Ross| Date: 28-02-2004 | Size: 3993 KB
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	Emsa Port Blocker  License: Freeware
	Emsa Port Blocker is a TCP blocking utility. What it does, is blocking unwanted tcp access from/to your computer.It is not a firewall, but up to some extent it could be regarded as a similar tool. Its purpose is to prohibit TCP access on certain ports and ip addresses. IT can also be used as a TCP monitor because it shows TCP connections currently active on the machine. This program works two ways. It can be configured to block access to certain local ports, but it can also prohibit access to specified remote ports as well. For example, you may try adding the port '80' to remote blocked ports. You'll immediately notice that you have disabled your browser's capability from accessing the www. You can use this program to block unauthorized access to certain ports on your computer, for example network ports like TCP 135 or 139 and so on. You can also use the configuration to permit connections between local IP's, or block even those as desired. The program comes with a function allowing to detect local ip's and adding them to the 'allowed' IP list. Functions: - When first started up, the program shows a list of TCP connections on your machine.If you don't see anything there, try opening browser and visit some site and you'll see them. - By unchecking the 'Show only connected' checkbox the program will also show tcp connections in other states, like LISTENING and so on. - The left hand list is versatile and its meaning depends on the last button clicked - check the label above to see what the list is currently displaying. - To add items to a list, type into the textbox below and click on add. Make sure you enter valid data (valid ip addresses/ valid port numbers).To delete one item, select it in the list and click on 'Delete'. - To view Allowed IP Addresses, click on the corresponding button. By default, here you will see your local IP address (127.0.0.1). You may want to add all your local IP addresses to the allowed list. This program is Freeware. Author: EMSA SYSTEMS LTD| Date: 28-10-2004 | Size: 161 KB
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	TrafficEmulator  License: Freeware
	Nsasoft Network Traffic Emulator generates IP/ICMP/TCP/UDP traffic from clients to server to stress test servers, routers and firewalls under heavy network load. It is a very simple and fast program which can simulate client activity. The tool is designed with a user-friendly interface and is easy to use. Author: Nsasoft LLC.| Date: 21-10-2005 | Size: 427 KB
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	XP TCP/IP Repair  License: Freeware
	Is Spyware and/or Adware messing up your internet connection after you have uninstalled it? Has your internet connection slowed down and you just don't know why? Have you used an Internet Optimizer that just didn't optimize your internet, instead it made it slower? If you answered yes to any of the questions above, then XP TCP/IP Repair may help fix your internet connection and possibly even protect your privacy. XP TCP/IP Repair is a Graphical User Interface (GUI) for commands in Windows XP® that repair your TCP/IP registry settings and your Winsock LSP's. Instead of having trying to remember long confusing command line commands you can now just click a button. What is an LSP? Layered Service Providers (LSP) are small pieces of software that can be added or inserted into the Windows TCP/IP handler by other software. Data outward bound from your computer to a legitimate destination on the Internet can be intercepted by an LSP and sent somewhere other than where you intend it to go. Author: Waresoft Software| Date: 06-03-2005 | Size: 278 KB
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	TCP / IP Monitor  License: Freeware
	TcpMon is an application that lets you monitor TCP activity on your local system. Displays active TCP connections, ports on which the computer is listening. Information returned includes local and remote IP addresses, local and remote ports, and TCP status codes. Author: Michael Kochiashvili| Date: 21-09-2006 | Size: 524 KB
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	SSH Tunnel Client  License: Freeware
	SSH Tunnel Client allows to connect to different SSH-Servers. With the SSH Tunnel Client it is possible to connect each TCP/IP Service over a secure SSH-Tunnel. Supports local and remote forwarding with SSH1 and SSH2. Author: delight software gmbh| Date: 29-06-2004 | Size: 3417 KB
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	Axence NetTools  License: Freeware
	NetTools is a comprehensive set of administration tools: - NetWatch - host monitoring with alerting, real-time & historical charts of response time & packet lost. E-mail & sound notifications available when a host is down. - WinTools - lists exhaustive system information from Windows computers: running processes & services, registry, event log, disk, memory & CPU information, etc. - Port scanner - checks for all open ports and running services. It can discover some Trojans/spyware. - Network scanner - discovers all nodes in a remote network, their IP/MAC and services running on them. - NetStat - displays your computer's inbound and outbound connections, lists all open TCP/UDP ports, with the remote IP address & the process using the connection. - TCP/IP workshop - establishes low-level TCP/UDP connections to troubleshoot and test network services. It can send raw data to any remote port. - SNMP Browser - a full SNMP browser, so easy you can use it even if you don’t know a thing about SNMP. - Other tools: fast traceroute shows information about every host on the route, its response time, and packets lost (full trace within 1 second). Lookup is like nslookup, but it shows you all DNS and WHOIS records at once. Bandwidth tool will measure network performance. NetCheck - with this tool you can check the quality of network hardware in your LAN. Free & Pro versions. Author: Axence Software, Inc.| Date: 15-11-2006 | Size: 15723 KB
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	tcpdump for Windows  License: Freeware
	MicroOLAP TCPDUMP for Windows accurately reproduces all features of the original tcpdump by LBNL's Network Research Group , developed for the UNIX systems. Since MicroOLAP TCPDUMP for Windows is compiled with the Packet Sniffer SDK, it has the following advantages: does not require any third-party preinstalled drivers; works from the single 300K .EXE file; supports 1Gbit networks; may be launched remotely using Windows Terminal, Radmin , and other remote administration systems. Currently MicroOLAP TCPDUMP supports the following operation systems: Windows 95; Windows 98; Windows ME; Windows NT; Windows 2000; Windows XP; Windows 2003; Windows LongHorn. Author: microOLAP Technologies LTD| Date: 17-03-2005 | Size: 340 KB
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	easy Look at Net  License: Freeware
	"easy Look at Net" is a simple ports scanner, packets sniffer and web-page source loader. Multithread ports scanner and packets sniffer specifically made to scan opened TCP ports, packets are filtered by incoming and outgoing, by IP addresses, ports and protocols - TCP, UDP, ICMP, IGMP. Simple web-page source downloader worked via proxy server, if is present in system. Utility is very simple in management that is important for beginning managers of networks. Besides there is no need in third-party libraries, such as WinPCap, etc. Author: Look@Net.com| Date: 05-01-2007 | Size: 134 KB
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	Flexiblesoft Ping  License: Freeware
	The Flexiblesoft Ping useful in testing and debugging TCP/IP troubles. It sends out a packet and expects a specified host(s) to respond back in a specified time frame. Also this program has multi-threaded, and so works several times quicker than usual ping program. Author: Dmitriy Gorin| Date: 21-07-2001 | Size: 308 KB
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	Stay Live 2000  License: Freeware
	Does your Internet Service Provider drop your dial-up connection after what seems like only nanoseconds of account inactivity? Stay Live 2000 keeps your Internet Dial-Up Connection active and on-line by periodically sending a small TCP/IP packet to one of the many Atomic Clocks maintained by the United States Government. Sending these small packets prevents your ISP from dropping your connection due to inactivity. You may also optionally select to have your computer's internal real-time clock updated each time one of these packets is sent and a response is returned from an NIST Time Server. You can use this utility in one of two ways. Either run your web browser or other Internet software and then launch Stay Live to keep your connection active, or launch Stay Live first to establish an Internet connection and then run your web browser or other software. Author: Gregory Braun| Date: 01-11-2003 | Size: 95 KB
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	IP_NetStat  License: Freeware
	Graphical network statistics showing open TCP/IP ports and their connections. Allows for printing or saving to a text file as well as the ability to hide connections to the local machine. Author: IP Worx| Date: 01-02-2004 | Size: 4345 KB
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	OstroSoft Winsock Component  License: Freeware
	COM library for Visual Basic 6, providing an easy access to the network layer of operating system (UDP and TCP sockets). OSWINSCK.dll serves as a wrapper for Winsock API and helps programmers to abstract from complexity of API calls and concentrate on application functionality. Author: OstroSoft| Date: 14-03-2004 | Size: 29 KB
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	Tunnelier  License: Freeware
	Free for individual use, Tunnelier is a fast, robust, easy to use SSH client for Windows (all versions) with an advanced graphical SFTP file transfer client; VT100, xterm and bvterm terminal console; scriptable console-mode clients for SFTP, terminal console and remote execution; flexible TCP/IP tunneling support - providing manual rules as well as an integrated SOCKS and HTTP proxy for dynamic forwarding; forwards Windows file shares; has strong auto-reconnect features; an FTP-to-SFTP protocol bridge; support for single-click Remote Desktop forwarding for graphical server access. Supports public key user authentication, as well as transparent authentication with Kerberos (GSSAPI) or NTLM. To satisfy special requirements, Tunnelier is highly customizable using a variety of command line parameters. Ideal for remote server administration using SSH - implements a complete set of features for this. Tunnelier supports all SSH servers, but it is most powerful when connecting to Bitvise WinSSHD. Author: Bitvise Limited| Date: 15-01-2006 | Size: 4380 KB
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	MyBlockeR  License: Freeware
	Simply TCP Port blocker-log file will be generated for all hack attempt. Load at Windows start-up and Auto Start functions included.Doesn't require installation and willnever add new registry key entries to your Windows registry database. Author: MyEraseR Software Solutions| Date: 27-06-2004 | Size: 203 KB
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	Kiwi Syslog Daemon  License: Freeware
	Kiwi Syslog Daemon is a freeware Syslog Daemon for the Windows platform. It receives, logs, displays and forwards Syslog messages from hosts such as routers, firewalls, switches, Unix hosts and any other syslog enabled device. There are many customizable options available. Features include PIX firewall logging, LinkSys home firewall logging, SNMP Trap and TCP support, ability to filter, parse and modify messages and take actions via VBScript or JScript engine. A Service Edition is available. The registered version has additional features. Features:  GUI based syslog manager  Messages are displayed in real-time as they are received  10 virtual displays for organizing your messages  Message logging or forwarding of all messages, or based on priority or time of day.  Auto Split the log file by priority or time of day  Receives messages via UDP, TCP or SNMP  Forwards messages via UDP or TCP  Automatic log file archiving based on a custom schedule  Messages per hour alarm notification with audible sound or e-mail  Log file size alarm notification with audible sound or e-mail  Daily e-mailing of syslog traffic statistics  Minimizes to the system tray  Maintains source address when forwarding messages to other syslog hosts  Syslog statistics with graph of syslog trends (Last 24 hrs/Last 60 mins.)  Syslog message buffering ensuring messages are not missed under heavy load  DNS resolution of source host IP addresses with optional domain removal  DNS caching of up to 100 entries to ensure fast lookups and minimise DNS lookups  Pre-emptive DNS lookup using up to 10 threads  Comes with 5 cool skins to change the look of the program  Selectable display font, display color, and background wallpaper  Also available as an NT Service  RFC3164 send and receive options  Context based help  Free for use for as long as you want Author: Kiwi Enterprises| Date: 05-11-2006 | Size: 5685 KB
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	TCP Spy .NET Standard Edition  License: Freeware
	TCP Spy .NET is a small application used to trace TCP packets between a client and a server. Optimized for .NET Web Services or Web Site TCP Spy .NET will help you find any bottleneck and it will help you in analyzing your bandwidth usage. With TCP Spy .NET, you can inspect data in different views, track server calls or just redirect the host. It's a 4 in 1 tool:  - monitoring tool  - web service / web site profiling tool  - redirection server  - Network / Web Site / Web Services spy Features:    1. General  - Light (one file only)  - Small (less than 1 meg)  - Rich and easy user interface  - Auto update  - Free    2. Monitoring  - Monitor connection IP address  - Monitor connection destination  - Monitor opened connection  - Log connections and requests to file  - Suspend monitoring with no service interruption  - Flag connection / request for an easier tracking  - Insert grid marker for an easier tracking  - View and clear log file    3. Profiling  - Profile Web Service: calls, durations, bytes in, bytes out  - Profile Url: content, size  - Get stats about Web Service (calls, duration, bytes in, bytes out)  - Get stats about Url (calls, duration, bytes in, bytes out)  - Pause profiling without interrupting the communication  - Get the size and the duration of the each request  - View request details for each connections    4. Redirection server  - Configure port redirection  - Configure ip redirection    5. Network spy  - Inspect bytes in data  - Inspect bytes out data  - Inspect header and raw data  - View HTTP header Author: Devolutions inc.| Date: 27-08-2007 | Size: 576 KB
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	Harden-It  License: Freeware
	Harden-It 1.1 Windows Security Hardening Tool, harden your TCP/IP Stack and Local System. Harden-It is a Network and System hardening tool for Windows. By hardening the IP stack your Network can sustain or completely twarth various sophisticated network attacks. By hardening your Local System lots of current malware, spyware, worm infection are completely blocked, proactively harden your system even against future uknown attacks. Network Hardening : · Harden your server's TCP and IP stack (Netbios, ICMP, SYN, SYN-ACK..) · Protect your servers from Denial of Service and other network based attacks · Enable SYN flood protection when an attack is detected · Set the threshold values that are used to determine what constitutes an attack · Various other protections. Local System Hardening : · Harden your Local Security settings. · Reduce potential intrusion vectors by disabling non used services. · Proactively disable scripting or Active-X controls which proofed potential propagation vectors in the past and continue to be exploited. · Various other protections. Author: YASC LTD| Date: 18-01-2005 | Size: 433 KB
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	StopListening  License: Freeware
	StopListening can conveniently close down all TCP/IP ports open by default on a Windows box, thus hardening the system against worm attacks. Not a firewall per se, provides an additional layer of security nonetheless. Author: Nonebar Security| Date: 19-10-2004 | Size: 45 KB
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	TheOne SysLog Sender Free Edition  License: Freeware
	Syslog Sender Free Edition is a free syslog tool. It can simulate networking device such as router, firewall and servers to send TCP and UDP syslog message to syslog server. You can use this free tool to evaluate the performance of your syslog server. SysLog Sender is based on internet standard protocol, which is specified by RFC 3164 and RFC 3195. Requirement : [Operating System] Syslog Sender supports the below OS : 1. Microsoft Windows 95 / 98 / NT 2. Microsoft Windows XP 3. Microsoft Windows 2000 Server and Professional with SP4 4. Microsoft Windows 2003 Server 5. Microsoft Windwos Vista [Hardware Requirement] Below hardware is required in order to install and run the Syslog Sender : 1. PIII processor (or equivalent) and later 2. 256MB RAM or above 3. 10MB Harddisk available space or above 4. 10/100 or wireless LAN card Author: TheOne Software Corporation Limited| Date: 02-05-2008 | Size: 2342 KB
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	TinyWeb  License: Freeware
	TinyWeb is extremely small (executable file size is 53K), simple (no any configuration except command line) and fast (consumes minimum of system resources) Win32 daemon for regular (TCP/http) and secure (SSL/TLS/https) web servers. This program is FREE for commercial and non-commercial use. The only restriction is that copyright holder must be attributed with the development of this code. See the LICENCE file for more details. Well, as this has been in essence an unpaid effort there is no guarantee of support (you get what you pay for :-), however I do undertake a limited amount of consulting. TinyWeb is written by Maxim Masiutin using Delphi. Source code is also provided. This program may be freely distributed, provided the distribution package is not modified. No person or company may charge a fee for the distribution of this program without written permission of the copyright holder. TinyWeb installs in minutes and maintains a low-memory profile. Author: RITLABS S.R.L.| Date: 05-12-2000 | Size: 182 KB
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	easy Look a Net  License: Freeware
	easy Look a Net is a multithread full connect TCP port scanner. Scan range of ports on remote host and save result to file. Main window can flip to system tray and control by context menu, called by click mouse on the application icon. Author: lookanet.com Team| Date: 02-06-2006 | Size: 85 KB
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	easy Look at Packets  License: Freeware
	"easy Look at Packets" is a simple packets sniffer. Packets are filtered by incoming and outgoing, by IP addresses, ports and protocols - TCP, UDP, ICMP, IGMP. Programm does not demand installation and is very simple in management that is important for beginning managers of system. Besides there is no need in third-party libraries, such as WinCap, etc. Author: Look@Net.com| Date: 17-10-2006 | Size: 100 KB
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	JM Pager  License: Freeware
	JM Pager is a special corporate "pager" for work in TCP/IP networks on Windows ® platforms (95/98/Me/NT4.0/2000/XP/2003). Primary aims - remote administration of client computers in a network & messaging tool for users. Features Common: Message sending. Here we have WinPopup clone. File sending. Simple reminder. The administrator has next rights: See screenshot of any user's computer. Get folder structures of user's computers. Copy files from and to user's computers. Run programs remotely and documents with associated programs. List current processes on remote computers. Kill process in remote systems. Get remote system information. Run command-line programs with or without output redirected to the administrator screen. Shutdown remote computer / Restart remote computer. Get computer's database (information about all remote computer's hardware, software). Author: QUIT-UP Ltd| Date: 01-05-2005 | Size: 2184 KB
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	easy Look a Packet  License: Freeware
	easy Look a Packet is a simple packet sniffer. Packets are filtered by incoming and outgoing, by IP addresses, ports and protocols - TCP, UDP, ICMP, IGMP. Programm does not demand installation and is very simple in management that is important for beginning managers of system. Besides there is no need in third-party libraries, such as WinCap, etc. Author: Look@Net.com| Date: 16-08-2006 | Size: 81 KB
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	Mobile TCP  License: Freeware
	Software for forwarding SMTP server connections to the correct SMTP server, made for people traveling with a laptop, connecting to different networks. Automatically checks the network status and detects changes, then by a set of IP/Mask rules Mobile TCP will select witch SMTP server to use. Mobile TCP operates from the tray There is no nag screens, unwanted requesters or irritating sounds. Settings are straight forward. The uninstaller completely removes the program, its files and its registry entries, so do not feel afraid to try it. Features:    Can check either external IP numbers (outside a firewall) or internal,  Forwards SMTP connections to the correct SMTP server,  Works silently in the background,  Easy to copy your current IP numbers to the clipboard,  Supports up to 10 simultaneous connections,  The Status window shows witch networks you have been connected to and when you sent e-mail,  Logfile option to save all the status messages,  Option to ignore the status of certain IP numbers,  Can check you POP3 server for new e-mail,  Full in program documentation,  Checks for updates on the Internet. Author: Klocktornet AB| Date: 08-12-2005 | Size: 1353 KB
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	BigSpeed Secure Socket Library  License: Freeware
	BigSpeed Secure Socket Library is an ActiveX control that dramatically simplifies and accelerates the development of proprietary communication solutions over the Internet. It implements a flexible message-oriented protocol on top of a single TCP connection. The transfered data are scrambled using on-the-fly 128-bit AES encryption with random session keys, without need of SSL certificates. The security is provided in two different modes: symmetric encryption with shared secret key and asymmetric encryption with 1024-bit public/private keys. Transport level authentication is available with optional digital fingerprints or secret keys. Building a virtual private application network is just a matter of setting the same crypto key on two or more sites. BigSpeed Secure Socket Library can be used both on client and server side, with centralized management of all connections. Information is exchanged through typed data packets identified by a command code. The library takes care of all low-level tasks: packetizing/depacketizing, compression/decompression, encryption/decryption, sending, receiving, buffer congestion and flow control. There is support for automatic DNS name resolution and SOCKS proxy servers. BigSpeed Secure Socket Library utilizes an elegant event-driven paradigm for easy integration into Windows applications. A special attention is paid to provide responsive user interface while maintaining maximum bandwidth efficiency. Carefully designed set of properties, methods, and events offers great flexibility to develop innovative communication software. Sample applications for chat, alert messaging, and file transfer are included in Visual Basic 6, Visual Basic .NET, Visual C++ .NET, and Delphi 7. Author: BigSpeed Computing Inc.| Date: 01-10-2005 | Size: 785 KB
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