Free computer diagnostics software for linux

Bandwidth Meter and Diagnostics is a Firefox extension that will automatically check whether Internet connection is working or not when a website can not be loaded, and a list of tools for network troubleshooting. Try to type a random domain name(e.g., qwqwqwq121212.com) to see what this means ...
This extension adds "Bandwidth Meter" to the Tools Menu. It performs the following tasks:
- Display your public IP address
- Display your public domain name
- Test download speed/bandwidth
- Test upload speed/bandwidth
This extension runs under any OS. If you use Windows, you could try our other Windows specific extension "Broadband Speed test and Diagnostics" that has extra features and can only run under Windows. We are creating this because we get many requests from non-windows users.

Computer Breaker project is a network testing tool for services vulnerabilities.

Computer Breaker is a network testing tool that allows networking administrators to test if a computer is vulnerable to malicious attacks.

Using the Nessus scanner, computer-breaker scans the remote host and automatically exploits its vulnerabilities.

Computer Temperature Monitor is a little applet for the GNOME desktop that shows the temperature of your computer CPU and disks on screen. Computer Temperature Monitor also allows you to log temperatures to a file.
You can set alarms to notify you when a tempertature is reached. Several monitors can be added to the panel to monitor different sensors. It is designed to look like the CPU Frequency Gnome applet. This applet used to be called Laptop Temperature Monitor.
Enhancements:
- The way the temperature file is read has been changed to fix a bug in some modules (acpi, ibm_acpi, i8k, and omnibook).
- Support has been added for Apple G5 computers (windfarm sensors).
- Support has been added for dynamic log filenames using patterns.
- A bug that prevented the icon from appearing sometimes has been fixed.
- A GConf key has been added for showing debug information in the applet tooltip.
- A Simplified Chinese translation has been added.
- Support has been added to change the logging timeout.
- There are some bugfixes.

Cannon Smash project is a 3D tabletennis game.

The goal of this project is to represent various strategy of tabletennis on computer game.

omega t+ is a computer assisted translation (CAT) tool suite.

omega t+ currently includes omegat, a translation editor tool with numerous features, extspell, an Apsell spell checker user interface, sentseg, for sentence segmenting of documents, and OmegaT packages, from which omegat is derived.