High-End Linux Consulting and Security

System Administration

Nagios Training

As from now I give all Nagios training courses for free! (Due to legal reasons a very small fee will be charged, see below)

Understanding Nagios and its most important Add-ons and plugins:

Monitoring Linux/UNIX servers
Monitoring Windows servers
Monitoring routers and switches

* Only two days needed to learn network monitoring with Nagios.
* On location at your company.
* Language is English or German.
* A ready-to-run VMware image for all participants.
* The training can be individually adapted to your requirements.


The following components are part of the training:

Core
Nagios 3 (daemon)
Official Nagios plugins (for standard checks like ssh, http, etc.)
NRPE (checking private parameters like cpu load, disk usage, etc.)
NSCA (pushing values onto Nagios, Nagios remains passiv)

Graphical front-ends
PNP4Nagios (add-on for rrdtool graphs)
NagVis (visualisation of the network)

Topics

Using the web front-end of Nagios
Global overview about the status of the network
Status overview about the host and service groups
The status of single hosts and services
The list of all hosts and services in a non-ok state
Availability reports
Alert reports
Notification reports
Comments in Nagios for hosts and services
Scheduled downtimes
Adaption of the web front-end

Actions which can be carried out from the web front-end
Execute host and service commands
Commands for the nagios daemon itself
Syntax check of the Nagios configuration

Basic configuration
Nagios objects: contacts, groups, dependencies, escalations, notifications, etc.

Creating new checks
Checking public services like http, ssh, etc. (standard plugins)
How to monitor values provided by snmp (check_snmp)
How to check log files for certain records (check_logfiles)
Monitoring private parameters like cpu load, disk usage etc. (NRPE / standard plugins)
Actively push values onto the Nagios server from the client side (NSCA)

Graphical add-ons
Creating rrdtool graphs (PNP4Nagios)
Visualisation of the network (NagVis)

Background
Plugins
Makros and how they work
Standard makros in Nagios
Host checks
Service checks
Aktive checks
Passive checks
State types
Time periods
Determine the state and reachability of hosts
Notifications
Information about the CGIs which provide the graphical front-end

Advanced
External commands
Event handlers
State flapping
Escalation of notifications
On-call notification rotations
Host- and service dependencies
The embedded Perl interpreter
Object inheritance
Time-saving tips for object definitions
Security
Nagios in large environments

Nagios compared to Icinga, openNMS and Zappix



Fee
10,- Euro

Prerequisite: basic knowledge of Linux system administration.