Config Xperts Opensource configurations, installation,tweaking,security and installation related to networks... Our Xperts are here to share them with you.

In this article, we have given you the steps for installing Asterisk in your Linux Machine.

1) Create a new directory "asterisk" under your default source files path,
# mkdir /usr/src/asterisk

2)Inside "asterisk" folder, you need to download or copy asterisk source file for compilation.
# cd /usr/src/asrerisk
# wget http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-1.8.4.tar.gz

(You can download older versions of asterisk from asterisk.org | Make sure you are connected with internet)

3) The .tar file must be untar (unzip) in order to execute the source file/
# tar zxvf asterisk-1.8.4.tar.gz

Before installing asterisk, you need to run several dependencies through YUM command or by RPM package, to execute the asterisk installer
Examples:
#yum install gcc
#yum install gcc-c++
#yum install glibc
#yum install glibc-devel
#yum install ncurses
#yum install ncurses-devel
#yum install openssl
#yum install openssl-devel
#yum install zlib
#yum install zlib-devel
#yum install bison
#yum install kernel-devel

( if you have missed any dependencies, You need not to worry as asterisk scripts on compiling-step4, generates error with the name of the dependencies required, and you can again do a "yum install DEPENDENCY" to get all the required material.

4) After Installing dependencies, run
# ./configure 
(This step checks the libraries and dependencies required for compiling | Install missing dependencies at this point, if required)

5) #make menuselect 
(This step is optional , it is needed to select the specific modules)


6) Final commands assuming the built complete successfully.
# make
# make install
# make samples

Then run asterisk service

# asterisk -vvvc

You will Enter in the CLI mode of asterisk after the above command.

SSH 
         
         SSH is the most secure way to access your Linux machine. In actual SSH has a default port. Changing the port may help you in step one of securing your Linux machine. Below are the steps you need to follow for ensuring port change for SSH.

LINUX NETWORK SETUP


In Linux network setup can be done in two ways. In the first phase of our discussion we will discuss Dynamic IP, and in the second phase we will discuss static IP.

This manual is about the installation and configuration of web-MeetMe version 3.0.3.
These set of instructions / guide lines are based on Centos – 5.0

Pre-requisite:
Asterisk 1.4 or later
MySQL 3.23 or later.
Yum install mysql
Yum install mysql-devel
PHP 4.3 or later
Yum install php
Yum install php-mysql
PEAR::DB (php-pear)
Yum install php-pear

;;;;;;;;;;;Dial 222, to initiate the process, this dial plan is written in extension.conf

exten => 222,1,ringing()
exten => 222,n,wait(2)
exten => 222,n,NOOp(Starting Conference)
exten => 222,n,Noop(Welcome to conference application,)
exten => 222,n,goto(authentication,100,1)