The term network monitoring describes the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, sms or other alarms) in case of outages. It is a subset of the functions involved in network management.
In today’s cut throat competition, where only the fittest can survive, an organization can’t be called professional, if it lacks network monitoring tools. When almost every company is trying hard to make its online existence more visible and strong, a slight mistake can cost it huge losses. When a visitor comes to a shop or office, he doesn’t mind waiting for few seconds. But in the virtual world, people really don’t have the patience to wait and revisit a down site, unless its their preferred one. A down time of few seconds can cause your loss of reputation as a worthy company.
Thus its highly crucial to invest wisely in network monitoring tools. This list comprises of some free and some paid but all desirable network monitoring tools. You can opt for customized package or an open source tool as per your organization’s requirements, but investment in it is a must. Network monitoring tools gives you both short term benefits and long term yields and you will never regret investing in this.
Cacti is a complete network graphing solution designed to harness the power of RRDTool’s data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices.
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.
collectd gathers statistics about the system it is running on and stores this information. Those statistics can then be used to find current performance bottlenecks (i.e. performance analysis) and predict future system load (i.e. capacity planning).
Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring system focused primarily on Cisco and Linux networks but includes support for a wide range of network hardware and operating systems.
Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. It leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization.
Monit is a free open source utility for managing and monitoring, processes, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.
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