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"Installation"
In this post I am going to deploy a MongoDB sharded cluster. MongoDB is an open-source NoSQL, document-oriented database designed for ease of development and scaling. I am going to use 3 servers, and all the /etc/hosts definition would be as below:
192.168.0.41 mongo1 mongo1.cluster.local 192.168.0.42 mongo2 mongo2.cluster.local 192.168.0.43 [...]
I am in phase of learning a NoSQL database called MongoDB. I will be using a CentOS 6.3 64bit box with minimal ISO installation disc with several package installed like perl, vim, wget, screen, sudo and cronie using yum.
We will use EPEL repo, which includes MongoDB installation package to simplify the deployment.
1. Install [...]
Installing OpenLDAP with Webmin will require a lot of steps. I have created a BASH script to install OpenLDAP with Webmin in CentOS 6 servers. To install, simply download the installer script at here:
Installation example will be as below. I am using a freshly installed CentOS 6.3 64bit installed with minimal ISO, with wget and perl [...]
This post is continuation of the previous post: http://blog.secaserver.com/2012/10/build-low-cost-call-center-elastix-asterisk-1/
Now we should have our PBX ready to receive call. But we are not yet configure on how to manage calls and agents. We should have a system to monitor agent’s activities. We can achieve this by using Call Center module inside Elastix. Install it by [...]
My company requires me to build a simple call centre whereby:
It can receive incoming call from customers Digital receptionist with interactive voice response (IVR) Make outgoing call Call queue 2 call center agents workings to attend all calls
In order to achieve this, we need to know how many concurrent calls that we usually get during [...]
We just received a new storage server from DELL which will be used to host web server cluster. We will use Openfiler, a free NAS/SAN operating system to manage our RAID-10 storage.
The problem we have now is our storage server has no optical drive and we do not have any external optical drive available [...]
If you use this command to upgrade to latest release FreeBSD 9.0:
$ freebsd-update -r 9.0-RELEASE upgrade
You might see following error:
The update metadata is correctly signed, but failed an integrity check. Cowardly refusing to proceed any further.
This error indicate that it cannot accept % and @ characters which appear in FreeBSD 9 . To [...]
PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. People will usually comparing PostgreSQL with MySQL, and there are several key factors which let us choose PostgreSQL over MySQL:
[...]
Mostly the CentOS servers that I am using is run on CLI (Command-Line Interface) mode. But in some cases, I need to have a desktop to install some applications with GUI (Grapich User Interface) mode. In this case, I will use GNOME, the most popular user-friendly desktop for any UNIX based system.
Variable that I [...]
Oracle Solaris 11 is one of the most popular UNIX-based operating system which widely download to be used by enterprise user, after FreeBSD. If you have FreeBSD basic knowledge, you should able to play around with Solaris as well.
If FreeBSD we have ports, the package manager and application installer, in Solaris, we can use [...]
Ubuntu is surely good for end-user operating system but sometimes we still need to have Windows application more. Using Wine, we can run Windows applications in UNIX/LINUX environment. If you are using Ubuntu, installing Wine is just simple if you are using Ubuntu Software Center. Just search for ‘Wine’ and then install.
In order to [...]
If you are a webmaster, then you should know the well-known log analyzer software called AWStats (Advanced Web Statistics). AWStats will convert your Apache access logs into a statistic page with lot of graphs and infographics.
One thing lack of it is the way AWStats represent the data in HTML. So, we will use
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