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Network Monitoring Tools Nagios and Spiceworks. Mit Dave 26 March 2014. Introduction. What are Network Monitoring Tools? System & Service monitoring Resource measurement/monitoring Performance monitoring Statistics & Accounting/Metering Fault Management (Intrusion Detection)

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Network Monitoring Tools Nagios and Spiceworks


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    1. Network Monitoring ToolsNagios and Spiceworks Mit Dave26 March 2014

    2. Introduction What are Network Monitoring Tools? • System & Service monitoring • Resource measurement/monitoring • Performance monitoring • Statistics & Accounting/Metering • Fault Management (Intrusion Detection) • Change management and configuration monitoring Why Nagios and Spiceworks?

    3. Nagios • Possibly the most used open source network monitoring software. • It is an agent based tool. • A key measurement tool for actively monitoring availability of devices and services. • Has a web interface. • Uses CGIs written in C for faster response and scalability. • Can support thousands of devices and services.

    4. Nagios-Installation Requirements : • LAMP Bundle Installation – Server • sudo apt-get install nagios3

    5. Files are installed here: • /etc/nagios3 • /etc/nagios3/conf.d • /etc/nagios-plugins/conf • /usr/share/nagios3/htdocs/images/logos • /usr/sbin/nagios3 • /usr/sbin/nagios3stats Nagios web interface is here: • http://localhost/nagios3/

    6. Configuring- Host • Various agents are available: • NSClient++ • NRPE • NRDP • Adding Windows host using NSClient++: • Install NSClient++ on host machine • Go to the installation directory and open the nsclient.ini • Look for these lines and add them if they’re missing: allowed hosts = password = port = 12489 • Restart the NSClient++ service: Start > Administrative tools > Services

    7. Adding Linux host using NRPE: • 1. Download • nagios-plugins-1.4.13.tar.gz • nrpe-2.12.tar.gz • 2. Create Nagios Account • useraddnagios • passwdnagios • Install NagiosPlugin • tar xvfz nagios-plugins-1.4.13.tar.gz • cd nagios-plugins-1.4.13 • export LDFLAGS=-ldl • ./configure • Make • make install • chownnagios.nagios /usr/local/nagios • chown -R nagios.nagios /usr/local/nagios/libexec/

    8. 4. Install NRPE • cd /home/downloads • tar xvfz nrpe-2.12.tar.gz • cd nrpe-2.12 • ./configure • make all • make install-plugin • make install-daemon • make install-daemon-config • make install-xinetd • Setup NRPE to run as daemon • Modify the /etc/xinetd.d/nrpe • only_from = 127.0.0.1 192.168.1.2 • Modify the /etc/services and add the following at the end of the file. • nrpe 5666/tcp # NRPEStart the service • service xinetd restart

    9. Configuring- Server • 1. Install NRPE Plugin: • tar xvfz nrpe-2.12.tar.gz • cd nrpe-2.1.2 • ./configure • make all • make install-plugin • 2. Make Host Configuration file • 3. Make Service Configuration file

    10. Other Configuration Files • Located in /etc/nagios3/ • Important files: • cgi.cfg controls the Web Interface options security • commands.cfg commands that Nagios uses to notify • nagios.cfg main Nagios configuration file • conf.d/* the core of the config files • Under conf.d/*, files “xxxx_nagios2.cfg”: • Contacts users and groups • generic-host “template” host (default)‏ • generic-service “template” service • hostgroups host group definitions • services which services to check • timeperiods when to check and notify

    11. Spiceworks • FREE! • Agentless • Full Inventory of Hardware & Software • Track To-Do’s & User Requests • Collaborate With a Community of IT Pros • IT Pros who have admin rights on their network • Organizations with less than 1000 devices on their network. It will work with more, but it won’t be as fast. • Discovering Windows, OS X, Linux and Unix (but must run from a PC).

    12. Installation • For Server Side • Go to www.spiceworks.com-Download-Install • For host Side • Configure firewall • For windows machines should allow “Windows Management Instrumentation ” (WMI) services. • Administrator Credentials are required to access the systems.

    13. Operations • Scanning the network • Inspecting the Inventory • Monitoring Options. • Ticketing.

    14. Nagios Vs Spiceworks • Nagios • Pros:  • Open source and very flexible. • Large ecosystem of tools and custom monitors built up around nagios. • All configuration is text files, so it is easy to keep this in version control and generate new configs from other tools. • Cons:  • Default interface is clunky. • Can be a steep learning curve if you haven't worked with it before. • Adding devices or services requires reloading the config or restarting the service. • Would like for this to be more dynamic. • It seems that most of the new development is going towards Nagios XI(paid enterprise version) rather than the opensourcenagios.

    15. Spiceworks • Pros: This is a great service desk product for SMB's. • It's free and easy to get going so it is perfect for companies that haven't got anything in place to handle inventory and helpdesk. • It is supported by a strong community of users that give you a built-in expert network and IT knowledgebase. • Cons: I think its monitoring tools could use some improvement. • Clearly it wasn't designed as a monitoring application from the start and it still seems a bit weak compared to Nagios.

    16. Questions ?

    17. THANK YOU