Free half open tcp connections software for linux

Open Tranquera is a repository of reusable components for J2EE application development.

There are UI extensions, Services, and a Persistence layer, integrated with existing open source frameworks.

Perl Advanced TCP Hijacking is a collection of tools for inspecting and hijacking network connections written in Perl. It consists of a packet generator, an RST daemon, a sniffer, an ICMP redirection tool, an ARP redirection tool, an IDS testing tool and other.

If your system supports Perl just do the following steps:
cd modules
su
perl Makefile.PL
make
make install
If the script tell you it cant install all required modules automatically youll find that module on CPAN [http://www.cpan.org].

Ptunnel is an application that allows you to reliably tunnel TCP connections to a remote host using ICMP echo request and reply packets, commonly known as ping requests and replies. At first glance, this might seem like a rather useless thing to do, but it can actually come in your help in some cases.
Setting: Youre on the go, and stumble across an open wireless network. The network gives you an IP address, but wont let you send TCP or UDP packets out to the rest of the internet, for instance to check your mail. What to do? By chance, you discover that the network will allow you to ping any computer on the rest of the internet. With ptunnel, you can utilize this feature to check your mail, or do other things that require TCP.
Main features:
- Tunnel TCP using ICMP echo request and reply packets
- Connections are reliable (lost packets are resent as necessary)
- Handles multiple connections
- Acceptable bandwidth (150 kb/s downstream and about 50 kb/s upstream are the currently measured maximas for one tunnel, but with tweaking this can be improved further)
- Authentication, to prevent just anyone from using your proxy

Libsocketcpp provides a easy-to-use C++ socket library class.
Dispite the name, the TCPSocket class can handle both UDP and TCP connections.
Unfortunatly right now, the class is simple. It does not do anything really fancy like non-blocking sockets, select which interfaces you want to use, etc...
What it does allow you to do is to set up a TCP or UDP server/client and send and receive blocks of data. Plain and simple
Enhancements:
- Fixed missing include inside tcpservertest test program.
- Should be able to compile on RH 7.0 now.

tcptunnel is a simple TCP tunnel written in Perl.

Also is a versatile tcp tunnel. The tcptunnel uses:
- tunnelling through a firewall or proxy
- redirecting tcp connections to other ports or machines
- debugging tcp connections in-place
- packet sniffing

The tcptunnel listens on local port < port > and when a connection is made it connects the other end of the tunnel as follows:
a) With no proxy specified, it connects the other end
to < srvport > on < srv >.
b) With a proxy, it connects to < srvport > on < proxy >.
It then directs the proxy to telnet to < srv >, and then it connects the ends of the tunnel.

JagoClient project is a viewer for the board game Go.
JagoClient is a Java-based SGF (Smart Go Format) and Go XML viewer, IGS (Internet Go Server) client, and a point-to-point Go player client.
It can also be used as a front end to GNUgo to play Go against the computer. It can run as an applet or as an application.
Main features:
- IGS client for TCP/IP connections (such as Ether net, Win Sockets or PPP dialup).
- Configurable automatic login using name and password.
- Graphical user interface for game lists and user lists.
- Game status, peek (includes all moves), and observer windows.
- Game variants can be edited while observing or playing.
- A local game viewer, which can read and write the Smart Go Format (SGF), as well as games stored in XML format. It can be used locally as a standalone program or in a browser to display games on the server. Some Features:
- Hierarchical game tree with variants.
- Marks, letters and removals of stones.
- A big comment window.
- True color wooden board and shiny stones with shadows available, completely resizable.
- Point to point Go protocol using a TCP/IP connection allowing to play games without any server. Some Features:
- Chat window.
- Accurate Timings of moves.
- Store and reload games, when the connection breaks down.
- You can create a local network of available players.
- International Support. JagoClient can use code pages to send local characters to the server, as well as international menus and help texts (thanks to Masamitsu Junji). Current languages are German, English, Russian, Japanese, Chinese, Korean, Polish and Italian. (Preview)
- Rich Features. Sound, Command history, on-line help, multiple connections, editable board colors, fonts and dialog colors and much more.
- Connects to computer oppenents. JagoClient can play against programs, which support the Go Modem Protocol, such as GnuGo under Linux or Windows.

Remote Monitoring Agent (RMA in short) is an auxiliary application for HostMonitor. Enterprise license for Advanced Host Monitor already includes license for 10 installations of the agent. Holders of a Lite, Standard or Professional licenses may buy an additional license for Remote Monitoring Agent separately.
HostMonitor 4.0+ can monitor remote networks using Remote Monitoring Agents (RMA). RMA is small application that accepts requests from HostMonitor, performs test and provides information about test result back to HostMonitor.
Why you may need RMA? Here are just several reasons:
RMA increases security of the network. When you have to run the tests such as CPU Usage test or Performance Counters tests on a remote Windows system, HostMonitor must be able to log in to that system with administrators privileges. Instead you may now use an agent installed on that remote system. In this case HostMonitor will not have to log on to that system at all. HostMonitor needs just one TCP port to communicate with the RMA agent (by default it uses #1055 port, however you may set an agent to use any other port).
Remote Monitoring Agent is also a very useful tool when you have to monitor two (or many) separated networks (connected through Internet). In this case installing just one instance of RMA behind the firewall in network "A" will allow to monitor entire network "A" using the HostMonitor located in the network "B" with just one open TCP port.
RMA decreases the network traffic. E.g. frequent use of "File Integrity" or "Compare Files" tests in an array of remote systems may apply significant load on the network. The more and the bigger files you test the more traffic increase you get. RMA runs locally and sends only the test results to the HostMonitor thus decreasing the amount of network traffic.
Remote Monitoring Agent simplifies network administration. You no longer need to share local drives/folders to perform tests such as File Integrity, Folder/File Size, File Availability, Count Files, etc
RMA for Linux / BSD / Solaris allows you to perform tests that HostMonitor cannot perform. For example HostMonitor cannot monitor processes that are running on Linux systems. RMA can do that.
Main features:
- All traffic between Remote Monitoring Agents and HostMonitor is encrypted.
- It is possible to customize the list of enabled tests for each of the agents (e.g. living only Count Files and UNC tests only).
- You can restrict incoming TCP connections with the list of acceptable addresses.
- With RMA Manager you may configure, restart and even upgrade agent(s) remotely.