Sentinella - System Monitoring Services

While monitoring the CPU, memory, hard drive and network usage, Sentinella can be programmed to take specific actions when set-points for utilization or time are met.

It can power off, reboot or hibernate your system, kill an active process, throw an alarm or execute any command.

It can measure the following conditions:
- CPU load
- Memory used
- Network traffic
- Date and time
- The existence of a process

And the possible actions are:
- Shutdown/Reboot the computer
- Standby/Suspend/Hibernate
- Execute a command
- Play an alarm
- Kill a process

Version: Sentinella 0.9.0-3
Size: 59.3 MB to download, 192.2 MB when installed

For more details: http://sentinella.sourceforge.net/

Thanks to : Dhanasekar, ILUG, Chennai

Munin - Networked Resource Monitoring Tool

Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work.

Munin is a highly flexible and powerful solution used to create graphs of virtually everything imaginable throughout your network, while still maintaining a rattling ease of installation and
configuration.

This package contains the grapher/gatherer. You will only need one instance of it in your network. It will periodically poll all the nodes in your network it's aware of for data, which it in turn will use to create graphs and HTML pages, suitable for viewing with your graphical web browser of choice.

It is also able to alert you if any value is outside of a preset boundary, useful if you want to be alerted if a filesystem is about to grow full, for instance. You can do this by making Munin run an arbitrary command when you need to be alert it, or make use of the intrinsic Nagios support.

Munin is written in Perl, and relies heavily on Tobi Oetiker's excellent RRDtool.

Version: munin 1.4.6-3ubuntu3.1
Size: 8.5 MB to download, 25.2 MB when installed

For more details: http://munin-monitoring.org/

Thanks : Dhanasekar, ILUGC

OProfile - Performance Profiling Tool

OProfile is a performance profiling tool for Linux systems, capable of profiling all running code at low overhead. It consists of a daemon for collecting sample data, plus several post-profiling tools for
turning data into information.

OProfile leverages the hardware performance counters of the CPU to enable profiling of a wide variety of interesting statistics, which can also be used for basic time-spent profiling. All code is profiled:
hardware and software interrupt handlers, kernel modules, the kernel, shared libraries, and applications (the only exception being the OProfile interrupt handler itself). Note that different architectures can use different hardware mechanisms to collect data.

Version: OProfile 0.9.8

For more details: http://oprofile.sourceforge.net/news/


Thanks : Dhanasekar, ILUGC

Horizontal lines on screen and is not clear - ubuntu 12.04

Q : Installed ubuntu 12.04 desktop version on Pandaboard as OS. The screen is having horizontal lines and is also not clear but taking screenshots and see them in other desktops, the screen in the pictures are very clear and are not showing this problem.

A: This may be due to tearing. Try to use a lower resolution. Screen shot will be clear as it takes copy of the framebuffer (available in RAM) and not from the monitor.

Thanks : ILUGC

AUTOIT - A freeware testing tool.

Looking for a simple freeware testing tool for functional/regression test ?

This is for you....

AutoIt is a freeware testing tool,

 

   1. We can record the keyboard/mouse events and play back

   2. We can write our own scripts for testing

   3. Create UI designs - We can create any UI design similar to Visual Basic.

The script is very easy as like using the BASIC programming

Following are the files used to run the AutoIt

   1. AutoIt3.exe - Edit/Debug/Run the script

   2. Au3Info.exe - View different window (like notepad, calculator, your own application) and its properties (includes button, textbox etc with their text)

   3. Extras\Au3Record\Au3Record.exe - Automatically record the keyboard/mouse events

  

For further details

http://www.autoitscript.com/

http://autoit-script.ru/autoit_rv_ua/files/Other/AutoIt_v3-_Your_Quick_Guide.pdf - Reference Guide

http://www.autoitscript.com/site/autoit/downloads/ - Download the file

Download installation file size - Around 7 MB

After Installation - Around 20 MB