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Installing and configuring Restund - STUN/TURN server

This guide describes how to install and configure RESTUND STUN/TURN server for supporting TURN functionality. 

This sollution is still in TESTING STATE!!!

TURN server seems to work properly, but sometimes the klient channel allocation on server side is not working and the media stream wont start!

Testing with: Restund v0.4.0, Kamailio v3.2, X-lite 4.



First we need to install compiler g++ and make:

 apt-get install g++ make


List of supplementary learning sources usable for "642-902 ROUTE - Implementing Cisco IP Routing" certification

This is a list of supplementary study materials usable for learning CCNP 642-902 - Route course and supporting following successful certification. They allow a deeper knowledge and support better orientation on selected topics. The contain links on externel Internet sources how I recommend it to my students during my CCNP lessons ofn our Cisco networking academy.

Main resources, of course, are following books:

Connecting GNS3 with a VirtualBox host

GNS3 simulator allow to interconnect GNS3 topology with VirtualBox hosts (for example those running Win or Linux OSs) and allows to make interesting topologies and scenarios testing with real traffic and services.

Kamailio 3.2 default routing logic flowchart

 This is the flowchart of Kamailio 3.2 default routing logic. The main purpose of this flowchart is to help you understand the routing logic and navigate through it more efficiently and quickly. It should also serve as a tool when you are trying to modify something.

Most routing blocks (mainly those in which routing can end (exit)) are displayed and organized.

Authors: Michal Javorka, Ján Hrnko, Martin Pohančeník


Android 4.0 on virtualbox - networking issues

Android 4.0 x86 port installed on virtualbox have problem to provide networking services over Internet as it requires wifi adapter. We should solve this issue with following settings:

Installing SIREMIS 3.2 the Kamailio web management interface, on debian (lenny) - how to

By day 14.12.2011 is Siremis v3.2.0 out. Siremis is the web management interface for Kamailio SIP Server. This is a major release, which is compatible with Kamailio v3.2.x. As we are using latest Kamailio 3.2 server we will do install and test latest Siremis GUI (however version 2.1 of siremis works with Kamailio 3.2).

Loki - L3 packet generation and manipulation tool

Notes: Loki is a Python based framework implementing many packet generation and attack modules for Layer 3 protocols, including BGP, LDP, OSPF, VRRP and quite a few others.


Installing SIREMIS 2.1.0 components

Siremis web interface provides opportunities to extend main functionalities with special components. However, these components requires additional configuration.


Installed the Kamailio server with Mysql, installed siremis with apache following steps in the guide.


Installing SIREMIS 2.1.0, the Kamailio web management interface, on debian (squeeze) - how to

The article is based on the article Installing SIREMIS 2.0, the Kamailio web management interface, on debian (lenny) - how to. The installation is straighforward and is working for siremis 2.1 and Kamailio 3.2. 

Observed problems

Message "can't open cmp file to write"

Ubuntu 11.10 32bit - virtualbox appliance available

New Ubuntu desktop 11.10, 32bit appliance with Gnome is available at http://nil.uniza.sk/virtualization/virtualbox/vb-images/virtualbox-images-appliances

The appliance has installed Vbox host additions, Jitsi and QuteCom SIP UA, wirshark and ngrep network diagnostic tools.

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