Network Monitoring and Management Conclusions AfNOG 11, Kigali/Rwanda.

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Presentation transcript:

Network Monitoring and Management Conclusions AfNOG 11, Kigali/Rwanda

What did we learn? We learned some of the advantages of having a well- managed network We learned the features of some Open Source Network Management tools o Nagios for monitoring network elements and servers o RANCID for the backup of configs o Cacti for graphing traffic and other statistics o SWATCH/Syslog-NG for managing logs o Smokeping for measuring latency in your network We tried them all in practice and make a simple working setup

What did we not cover So much more... All this software has many more features and is extensible o Read docs, forums, examples o Read the source code if you can o Ask questions, try it out There's commercial alternatives, and alternatives by hardware vendors o Compare the features, ask for a test version o Only because it costs money, it's not necessarily better/easier to manage (but maybe it is) o It all depends on YOUR needs o Support is also available for open-source tools

What did we not cover(2) There's more network management/monitoring than the tools we covered, you can try the following tools (in no particular order) Managing tickets/NOC queues (covered through exercises): RT (Request Tracker) is a powerful ticketing tool Analyze traffic by type, source destination: Learn about Netflow and tools like NFSen

More tools we did not cover Visualize network designs with tools like Dia or Microsoft Visio or discover it automatically with Network Weathermap Manage/secure who has router access with RADIUS or TACACS servers like Shrubbery's TACACS+ daemon or Freeradius Sniff and analyze Network traffic using Wireshark Install intrusion detection systems like SNORT Use a portscanner like nmap to find open ports or a scanner like Nessus to find potential vulnerabilities in your network

We're still not done Use a Wiki or Content Management system for your documentation like trac or TWiki Use Netdot and Netdisco to manage your addressing equipment Manage code for your tools or other data which changes using a versioning system like CVS or Subversion (we mentioned it in RANCID)

Some more Performance Cricket IFPFM flowc mrtg netflow NfSen ntop pmacct rrdtool SmokePing SNMP/Perl/ping Ticketing RT, Trac, Redmine Net Management Big Brother Big Sister Cacti Hyperic Munin Nagios* Netdisco Netdot OpenNMS Sysmon Zabbix Change Mgmt Mercurial Rancid (routers) RCS Subversion Security/NIDS Nessus OSSEC Prelude Samhain SNORT Untangle And that's not all!!!

What were the main goals of this class Depends on you and your users. Increase uptime/reliability Find errors/faults which increase latency or packet loss Decrease amount of manpower needed to manage the network - save you some time Easier documentation Most important is that you can take the knowledge home and try the tools which are best for you in your network.

Thank you for your time We hope the last two days have been helpful, and gave you some inspiration We hope you learned something If you did, give us feedback - if you didn't please tell us too. If you have questions or feedback later, please contact us by !

References RT: NSFen: Smokeping: Dia: Network Weathermap: TACACS+ daemon: Freeradius: Wireshark: Snort: nmap: Nessus: trac: TWiki: Netdot: Netdisco: CVS: Subversion: