Download Learning Nagios by Wojciech Kocjan PDF

By Wojciech Kocjan

Tips on how to manage Nagios four which will visual display unit your platforms successfully approximately This booklet arrange, configure, and deal with Nagios four to safe and visual display unit your procedure use libnagios and NERD to method and deal with queries choked with plenty of assistance, methods and illustrations to provide an explanation for the Nagios configuration and tracking recommendations in a simplified demeanour Who This e-book Is For This e-book is superb for method directors attracted to utilizing Nagios to observe their structures. it's going to additionally support execs who've already labored with prior models of Nagios to appreciate the hot positive factors of Nagios four and gives usable ideas to real-life difficulties with regards to Nagios management. To successfully use this ebook, procedure management wisdom is needed. in an effort to create your individual plug-ins, wisdom of scripting languages like Perl, shell and Python is predicted. What you are going to research set up and configure Nagios to manage your community and procedure installation brokers and plug-ins, and video display resources with complex positive aspects of Nagios Notify clients of present and destiny incidents to guard the supply, functionality, and safety of monitored resources Configure and paintings your manner round the Nagios net interface move provider and host payment effects over the community utilizing NSCA arrange a operating and usable disbursed tracking method utilizing NSClient++ improve customized plug-ins liable for appearing tests and reading effects Use the internet interface to regulate scheduled downtimes for hosts and providers enforce adaptive tracking to change a number of check-related parameters utilize SSH and NRPE to accomplish distant exams Use SNMP to retrieve info from a tool, set concepts, and likewise hide capability for a tool to inform different machines a few failure intimately the most vital demanding situations in approach tracking is to discover and document any malfunctioning approach or equipment once attainable

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It can be used to communicate with various parts of Nagios and allows easy integration with third-party solutions, such as allowing an application to run checks instead of a plugin. It can be used also for retrieving updates from service or host checks, and allows registering an application as the handler for a check or notification. The Nagios Event Radio Dispatcher (NERD), which works on top of the query handler, also allows subscribing to host and service status changes and updates. Chapter 12, Using the Query Handler, talks about the query handler and NERD in more detail, as well as shows actual examples of using it.

To install the plugins on an Ubuntu Linux distribution, we can run the following command: apt-get install nagios-plugins-basic nagios-plugins-standard And for RedHat Enterprise Linux and CentOS, we need to run the following command: yum -y install nagios-plugins-all [ 27 ] Installing Nagios 4 If you choose to install the Nagios plugins manually you may continue to the next section and skip the manual installation process. 16. We'll configure Nagios plugins parameters for the directories, we plan to install it by running the configure script.

Its syntax is simple, a line beginning with # is a comment, and all lines in the form of = set a value. In some cases, a value might be repeated (like specifying additional files/directories to read). dat status_update_interval=10 (…) [ 34 ] Chapter 2 The main configuration file needs to define a log file to use, and that has to be passed as the first option in the file. It also configures various Nagios parameters that allow tuning its behavior and performance. dat status_update_interval Specifies how often (in seconds) the status file should be updated; defaults to 10 (seconds) nagios_user User to run the daemon nagios_group Group to run the daemon command_file It specifies the path to the external command line that is used by other processes to control the Nagios daemon; defaults to [localstatedir]/rw/nagios.

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