Free monitor and control software for linux

NetworkControl is a utility to control and monitor network interfaces, including wireless ones (for which you see a signal strength meter, as shown).

NetworkControl addresses a conspicuous lack in most Linux distributions — most tend to be short on easy-to-use network utilities, even something as trivial as a robust, informative way to log on and off a dialup connection. NetworkControl also provides the connection IP, configuration and statistics (gleaned from "ifconfig" and updated each second), and provides graphic signal levels for wireless interfaces, handy for evaluating a system of wireless devices.

NetworkControl allows you to see network activity at a glance and lets you control your network interfaces in a fast, convenient way. It is designed to be easy to use and informative.

If you have downloaded the binary, just put it in /usr/local/bin, give it executable permissions and run it like this:
networkcontrol

You can make a desktop shortcut with this as its executable target.

If you have downloaded the source package:
Put it in any convenient location.
tar -xjf networkcontrol.tar.bz2
cd networkcontrol.dist
./auto_install.sh

If you dont want the automatic installation or you want to fine-tune the process, instead of running "auto_install.sh", after the unpacking step above, do this:

make -f Makefile.cvs dist
./configure
make
sudo make install

Obviously you may want to modify some of these steps to suit your platform.

Simple Xmms Control is a a simple SuperKaramba theme that provides XMMS control. Icons are from nuoveXT icon theme.

All suggestions are welcome!

NAT Monitor is a tool to monitor hosts bandwidth usage in a Linux-NAT network.

A daemon collects data and clients display them (currently a GTK app with graph and a text version). It detects new hosts, saves up to 12 hours of data, and has a nice summary statistic.

DDCcontrol is a program used to control monitor parameters, like brightness and contrast, by software, i.e. without using the OSD (On Screen Display) and the buttons in front of the monitor.
With DDCcontrol you can monitor the parameters of your monitor on Linux.
Enhancements:
- This release mainly adds support for many new monitors, and fixes some minor bugs.

Teacher Control Panel allows a teacher to monitor, lock, and operate student computers and broadcast the teachers screen to the students.
Teacher Control Panel can work with a mix of Windows and Linux workstations. The screens are captured using VNC, and the teachers screen is broadcast using multicast.
Main features:
- Supervise the activity of the students (view student screens)
- Lock student screens
- Broadcast the teacher screen to students (all students or a subset) fullscreen or in a window (this feature uses multicast therefore can scale to many computer very well)
- Control remotely a student computer
- Run a script for every student computers
- Compatible with any Java compatible OS (default configuration is for Linux)

Sleek Monitor is a combination of basic monitors for:
- OS
- KDE
- Kernel
- CPU & cache
- GPU & GPU Temp
- Memory
- Wired & Wireless networks
- battery with time
- date and calendar

Aazmat Monitor is a SuperKaramba system monitoring widget.

It was adapted to meet office theme and added a few new monitors all of them are built into there own theme file so you can place them were you like.

Argus Monitoring System software is a system and network monitoring application.
It will monitor nearly anything you ask it to monitor (TCP + UDP applications, IP connectivity, SNMP OIDS, Programs, Databases, etc).
It presents a nice clean, easy to view web interface that will keep both the managers happy (Red Bad. Green Good.) and the techs happy ("Ah! thats what the problem is").
It can send alerts numerous ways (such as via pager) and can automatically escalate if someone falls asleep.
Main features:
- It is open-source available at no charge.
- It has a clean and intuitive web interface.
- The web pages can easily be understood by non-technical people.
- It can generate graphs of what is going on.
- It can monitor network connectivity (Ping test)
- It can monitor TCP/UDP ports
- It can monitor a wide variety of TCP/UDP applications (HTTP, SMTP, RADIUS, ...)
- It can monitor the output or exit code of a program (Program test)
- It can monitor the content of a web page (such as a shopping cart application)
- It can monitor the authoritativeness of a nameserver
- It can monitor SNMP OIDs (such as BGP status, UPS voltage, room temperature, ...)
- It can monitor the results of SQL queries
- It can monitor itself.
- It can be extended to monitor things that the author didnt think of
- It can notify someone (or many people) when something happens
- It can escalate, and notify someone else, if things dont get fixed.
- It can not alarm for known downtime (maintenance overrides)
- It will summarize and rate-limit multiple notifications to prevent paging-floods.
- It keeps historical statistics, for analysis or SLA verification.
- It scales well and can monitor many, many things.
- It can restrict users to viewing only certain items (user "views")
- It can restrict users access to certain features (access control)
- It can support IPv6.
- It can support SNMPv3.
- It can support l10n for your native language.
- It can support redundant multi-server configurations.
Enhancements:
- This release offers improved performance and scalability, adds support for additional tests, and adds support for failover and redundancy.