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Monitoring, Management, Measurement, Tools, NetFlow, sFlow, SNMP

How to configure Zabbix client on Linux server (Debian like)

Install Zabbix agent daemon into your system

apt-get install zabbix-agent

then change in file /etc/zabbix/zabbix_agentd.conf three parameters:

Server=IP of Zabbix Server
ServerActive=IP of Zabbix Server
Hostname=use the FQDN of the node where the agent runs

 

Do not forget to allow zabbix in your firewall rules. Zabbix agent listens on port 10050 TCP.

Then simple restart agent

service zabbix-agent restart

Thats all.

How to configure SNMP client on Linux server (Debian like)

The article describes just the simplest running configuration and how to run SNMPd agent on Linux OS.

 

Firstly, we need to install SNMP deamon

apt-get install snmpd

Then backup config file and create new

mv /etc/snmp/snmpd.conf  /etc/snmp/snmpd.conf.orig
touch /etc/snmp/snmpd.conf

Write basic information into the new /etc/snmp/snmpd.conf file

Router IP Traffic Export - the router packet capture capabilities

http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/ht_rawip.html

Cisco switches provides SPAN and RSPAN feature which is suitable for monitoring and capturing packets flowing through switch ports or VLANs. But this feature is not provided on Cisco routers, therefore if you look for it there is not result.

Installing and configuring Homer SIP capture server - debian 64b squeeze - howto

Description: Homer is an Open Source SIP Capture server by Alexandr Dubovikov & Friends, based on OpenSER/Kamailio and supporting HEPv1/v2 (Homer Encapsulation Protocol) & IP proto 4 (IPIP) encapsulation and monitoring/mirroring port capture modes. Homer ships with a flexible and lightweight capture agent for unsupported scenarios and a powerful browser based UI (webHomer).

Web:

http://sipcapture.org/

http://code.google.com/p/homer/

Using tcpdump for SIP diagnostic

TCPdump is a powerful command-line packet analyzer, which may be used for a SIP message sniffing/analyzing. TCPdump is preinstalled on many linux distributions, or may be installed directly from debian repository:

apt-get install tcpdump

TCPdump allows write sniff to a file or display it realtime. Its usage for SIP message analysis may look like:

1) Display real time to a console

tcpdump -nqt -s 0 -A -i eth0 port 5060

 where:

-n do not convert IP address to DNS names

Monitoring tools - list

The page provides summarized view of monitoring tools, which we used.

A B C D E F G H I J K L M N O P R S T V W X Y Z

 

C


Cacti

web: http://www.cacti.net/
Licence: opensource

Platform: -



How to install ngrep on CentOS 5.5


Ngrep is one of networking tools usefull for VoIP (Voice Over IP) analysis. Unfortunatelly I did not find ngrep package available inside ot the yum repository, so command

yum install ngrep

does not work (SipXecs over CentOS). No problem, just few steps how to install it.

Go to your prefered download directory, for example /home/your_username.

Then localize ngrep rpm package available for download, for example at http://packages.sw.be/ngrep/

Download it using wget



CommView - packet analyzer and network monitor


Author: TamoSoft

OS: MS Win

CommView is an interesting network monitor and analyzer tool usable for LAN administrators, security professionals, network programmers, home users…anyone who wants a full picture of the traffic flowing through a PC or LAN segment.

Network monitoring, management and measurements web links

* Measurement tools links at http://www.cs.columbia.edu/~hgs/internet/tools.html

* Network Performance and Measurement Tools at http://dast.nlanr.net/NPMT/

SNMP software - references

PRTG Traffic Grapher

http://www.paessler.com/prtg

Supports: SNMP, NetFlow, Packet Sniffing

 

Focal Point

http://www.transition.com/TransitionNetworks/Products2/Static/focalpoint...

Supports: SNMP

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