NetFlow Export Version Formats
For all export versions, the NetFlow export datagram consists of a header and a sequence of flow records. The header contains information such as sequence number, record count, and system uptime. Read more…
Because it is part of Cisco IOS software, NetFlow enables networks to perform IP traffic flow analysis without deploying external probes, making traffic analysis economical even on large IP networks. Read more…
New to Nagios? If you need an overall idea, look at these files that are stored in directories on a Linux machine. (Once Nagios installed of course). Configure your stuff and monitor an enterprise-class network or use “distributed nagios” (use the search box) to monitor a global network.
Here is another aide-memoir. It is a diagram of Nagios in a distributed monitoring configuration (click to view full-screen) Read more…
MIB stands for Management Information Base and is a collection of information organised into a hierarchy. These are accessed using a protocol such as SNMP. There are two types of MIBs: scalar and tabular. Scalar objects define a single object instance whereas tabular objects define multiple related object instances grouped in MIB tables. Read more…
Mean Time Between Failures (MTBF)
MTBF is a basic measure of reliability for components that are able to be repaired. It is the number of hours that pass before a component or system fails. It is a commonly-used variable in network availability analyses and reports. Read more…
The check_ups plugin was created to facilitate monitoring of a number of UPS vendor products. To use the plugin you will need to install UPSD daemon distributed with Russel Kroll’s Smart UPS Tools on the remote host. (See the REQUIREMENTS at the end of this post).
I do however believe that this plugin works with the old NUT API, which has been deprecated when switching from 1.4 to 2.0 version of NUT.
These are specified in the $NAGIOSHOME/etc/checkcommands.cfg file. Where there are parameters available for a command, these can be passed through from services.cfg.
The statusbar indicator of the events from Nagios is parsed from the Nagios web interface. It is succesfully tested with Nagios 3, 2.5+, 2.0b4, 1.5, 1.3 and 1.2. https://addons.mozilla.org/en-US/firefox/addon/3607
Here is a list of 10 nagios 2.x web frontends that you might find useful if you are looking for a web interface to administer your nagios configuration. Read more…
