Download Learning Nagios 4 by Wojciech Kocjan PDF

By Wojciech Kocjan

The most vital demanding situations in approach tracking is to discover and file any malfunctioning process or equipment once attainable, so you as an administrator are conscious of the matter sooner than a person runs into one.
Nagios is a strong tracking device that allows corporations to spot and unravel IT infrastructure difficulties ahead of they have an effect on severe enterprise strategies. It screens all your IT infrastructure to make sure structures, purposes, prone, and company procedures are functioning effectively. within the occasion of a failure, Nagios can alert the technical employees of the matter, permitting them to commence remediation techniques prior to outages impact enterprise strategies, end-users, or consumers.

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Learning Nagios 4

Probably the most very important demanding situations in method tracking is to become aware of and record any malfunctioning method or equipment once attainable, so you as an administrator are conscious of the matter sooner than a consumer runs into one. Nagios is a strong tracking software that allows firms to spot and get to the bottom of IT infrastructure difficulties sooner than they have an effect on severe company techniques.

Extra resources for Learning Nagios 4

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After we have verified that Nagios has started successfully, we now need to press Ctrl + C to stop the Nagios process. Setting up Nagios as a system service After installing Nagios, it is worth making sure the daemon will be running as a system service, and will properly start up during system boot. 0. d). The script is automatically created, and will contain usernames and paths that were put when the configure script was run. d/nagios script shipped with the source code does not work properly on Ubuntu Linux.

For security reasons, the $USERn$ variables are also not passed to commands as environment variables. [ 40 ] Chapter 2 Configuring hosts Hosts are objects that describe machines that should be monitored—either physical hardware or virtual machines. A host consists of a short name, descriptive name, and an IP address or host name. It also tells Nagios when and how the system should be monitored as well as who shall be contacted with regards to any problems related to this host. It also specifies how often the host should be checked, how retrying the checks should be handled, and how often should a notification about problems be sent out.

Some of the options that the script accepts are described in the following table: Option --prefix=

Description --sysconfdir= Specifies the directory where all Nagios configurations will be stored; defaults to [PREFIX]/etc --libexecdir= Specifies the directory where all Nagios plugins will be installed; defaults to [PREFIX]/libexec --localstatedir= Specifies the directory where all Nagios status and other information will be kept; defaults to [PREFIX]/var --enable-perl-modules Installs the Nagios::Plugin package along with all dependant packages --with-nagiosuser= Specifies the Unix user used by the Nagios daemon; defaults to nagios --with-nagiosgroup= Specifies the Unix group to use for the Nagios daemon; defaults to nagios --with-pgsql= Specifies path to PostgreSQL installation; required for building of PostgreSQL testing plugins --with-mysql= Specifies the path to the MySQL installation; required for building of MySQL testing plugins --with-openssl= Specifies the path to the OpenSSL installation; can be specified if OpenSSL is installed in a non-standard location (such as /opt/nagios/openssl) --with-perl= Specifies the path to Perl installation; can be specified if Perl is installed in a non-standard location (such as /opt/ nagios/perl) Specifies the main directory in which all Nagios binaries are installed; defaults to /usr/local/nagios The --enable-perl-modules option enables installing additional Perl modules (Nagios::Plugin and its dependencies) that aid in developing your own Nagios plugins in Perl.

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