1 / 36

Open Source Network Management Tools

Open Source Network Management Tools. Bruce Zamaere bsiza@kth.se. Overview. Introduction NOC Philosophy Available Tools. introduction.

adli
Télécharger la présentation

Open Source Network Management Tools

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Open Source Network Management Tools Bruce Zamaere bsiza@kth.se

  2. Overview • Introduction • NOC Philosophy • Available Tools

  3. introduction • wikipedia: “A network operations center (or NOC, pronounced “nock”) is one or more locations from which control is exercised over a computer, television broadcast, or telecommunications network.”

  4. Functions of a NOC • Responsible for monitoring the network for alarms or adverse conditions (e.g. power failures, link failure) • NOC staff analyze problems, troubleshooting, collaborate with other technicians on site. • NOC tracks issues/problems until they are resolved. • Problems not solved within a specified time frame can be escalated to the appropriate personnel. • Standard Operating Procedures exists that detail how to remedy issues/problems.

  5. NOC Philosophy (Adapted from RedHat documentation) • Automate everything • Document everything • Communicate as much as possible • Know your resources • Know your users • Know your business • Security cannot be an afterthought • Plan ahead

  6. Purpose • NOCs are dedicated to monitoring and coordinating network operations. • This requires that the following functional areas are addressed:

  7. MRTG • Multi Router Traffic Grapher • http://oss.oetiker.ch/mrtg/ • Based on SNMP • Used to monitor traffic load on network links. • Many hacks exist to allow you to monitor other things (e.g. incoming / outgoing emails, cache hits and misses)

  8. Weathermap 4RRD • Generates network weather maps. • Shows the network link utilization on the network map by color scheme • Data used to create graph are acquired from RRDTool databases or MRTG HTML files

  9. Nagios • http://www.nagios.org/ • an enterprise-class network and server monitoring system. • Useful for: • Monitoring of network services. • Monitoring of host resources (processor load, disk usage, system logs) • Contact notifications when service or host problems occur and get resolved (via e-mail, SMS). • You can define event handlers that execute when triggered by certain events. (Proactive problem resolution)

  10. OpenNMS • http://www.opennms.org • Functionalities • High performance • A single instance of OpenNMS supports monitoring of a large number of nodes. • Automation • OpenNMS minimizes the amount of manual configuration. • Rule-based configuration • Flexible rules can be used to specify what services are polled on what devices.

  11. ZABBIX • http://www.zabbix.com • Functionalities • Performance monitoring • User alerts • Monitoring of log files • Logging services • Capacity planning • Assuring and monitoring of SLA • High level view of IT resources and services • Graphical representation of collected information • Network maps

  12. Cacti • http://www.cacti.net • Similar to MRTG. • Based on RRDtool. • Offers excellent graphing capabilities. • Has extensive templates.

  13. NTop • http://ntop.org • Network probe that shows network activity just like “top”.

  14. Request Tracker • http://bestpractical.com/rt/ • Tracks data/conversations/requests. • Convenient for end users. • Highly customizable. • Easy to install (hmm…)

  15. Security Tools • Some security tools to consider: • NetFilter IP Tables – Firewall • WireShark – Protocol analyzer • Snort – Intrusion detection • Netcat – Feature rich tool. Great for debugging. • Nessus – Vulnerability scanner • Many many more…

  16. Recommended Reading • Practice of System and Network administration by Thomas A. Limoncelli • How to accelerate your Internet E-book http://bwmo.net/ • Red Hat Linux Network Management Tools (CD-ROM included) (Paperback) By Steven Maxwell.

More Related