From basic ping tests to integration with plug-ins like WebInject, you can constantly monitor the status of servers, services, network links, and basically anything that speaks IP. The Web GUI is fast and intuitive (although it's even better with the contributed Nuvola style), and the back end is extremely robust.Īs with Cacti, there is a very active community supporting Nagios, and plug-ins exist for a massive array of hardware and software. Written in C, it's just about everything that system and network administrators could ask for in a monitoring package. Nagios ( Nagios is a surprisingly mature network monitoring framework that's been in active development for many years. There really is no comparison to this tool in either the open source or commercial world. In many places where I've implemented Cacti, these maps wind up running 24x7 on 42-inch LCD monitors mounted high on the wall, providing the whole IT staff with at-a-glance updates on network utilization and link status.Ĭacti is extremely well written, well presented, and infinitely customizable. Using the PHP Network Weathermap plug-in for Cacti, you can easily create live network maps showing link utilization between network devices, complete with graphs that appear when you hover over a depiction of a network link. In some of my installations, I have data going back several years, which proves invaluable when determining if current behavior of a network device or server is truly anomalous or, in fact, occurs with some regularity.
Not only that, but you can easily select specific timeframes and sections of graphs just by clicking and dragging. The framework deftly separates data collection and graphing into discrete instances, so it's easy to rework and reorganize existing data into different displays. I've written several data templates for Cacti that can be downloaded from the project site, including the FLEXlm monitoring code.Ĭacti's default collection method is SNMP, but local Perl or PHP scripts can be used as well.
There are also collections of contributed templates for an even greater array of hardware and software.
#Flexlm license monitoring tools windows
There are templates to monitor a wide variety of devices, from Linux and Windows servers to Cisco routers and switches - basically anything that speaks SNMP. If a device or service returns numeric data, it can probably be integrated into Cacti.
#Flexlm license monitoring tools free
In some of my more advanced installations of Cacti, I'm collecting data on everything from fluid return temperatures in datacenter cooling units to free space on filer volumes to FLEXlm license utilization. Cacti is the current standard-bearer of open source network graphing, and takes the original goals of MRTG to whole new levels.Ĭacti is a LAMP/WAMP (Linux/Windows, Apache, MySQL, and Perl/PHP/Python) application that provides a complete graphing framework for data of nearly every sort. MRTG begat RRDTool, which is the self-contained round-robin database and graphing solution in use in a staggering number of open source tools today. Back in the heady days of the 1990s, Tobi Oetiker saw fit to write a simple graphing tool built on a round-robin database scheme that was perfectly suited to displaying router throughput.
From network and server monitoring to trending, graphing, and even switch and router configuration backups, these utilities will see you through.Ĭacti ( First, there was MRTG. Because good and free always beats good and costly, I've compiled a list of my favorite open source tools that prove their worth day in and day out in networks of any size. Sooner or later, you're going to meet with disaster.įortunately, there are a plethora of good tools, both commercial and open source that can shine much-needed light into your environment. If you don't know what your network and servers are doing at every second of the day, you're flying blind. In the network and server administration world, the mantra is visibility, visibility, visibility. In the real estate world, the mantra is location, location, location.
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