SecaServer

Install MySQL Cluster in Debian

SecaGuy — Fri, 17 May 2013 07:35:26 +0000

MySQL Cluster is different compare to normal MySQL server. It has 3 roles:

management data SQL or API

Data node will required a lot of memory utilization. It is recommended for these nodes to not share any workload with SQL or management nodes as it would end up with resources exhaustion. So we will setup [...]

CentOS: Install Nagios – The Simple Way

SecaGuy — Thu, 11 Apr 2013 12:44:43 +0000

Nagios is the most popular open-source infrastructure monitoring tools. Nagios offers monitoring and alerting for servers, switches, applications, and services. It alerts users when things go wrong and alerts them again when the problem has been resolved.

I have created a script to install Nagios and Nagious plugin in RHEL/CentOS:

#!/bin/bash # Install nagios and [...]

CentOS: Install and Configure MongoDB Sharded Cluster

SecaGuy — Mon, 25 Mar 2013 15:15:35 +0000

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 [...]

CentOS: Install MongoDB – The Simple Way

SecaGuy — Mon, 25 Feb 2013 06:58:15 +0000

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 [...]

Basic Linux Command in PDF

SecaGuy — Fri, 22 Feb 2013 05:17:46 +0000

My new assistant has zero knowledge on Linux so I should prepare him some of basic linux command with some example and description. Even though he can use ‘man’ command to get detail explanation on specific command, he still not to familiarize with the environment and gain some experience.

I have created following PDF where [...]

CentOS: Restore/Recover from Amanda Backup

SecaGuy — Wed, 06 Feb 2013 04:48:46 +0000

So I have Amanda backup server configured in 2 servers as refer to my previous post here. In that setting, I was using Amanda to backup one of the server’s directory /home/webby/public_html in server sv101.krispykream.net. Now I need to restore all files in directory/home/webby/public_html/blog from latest backup.

Configure Amanda Client for Restore

1. Login [...]

ESXi 5.1: can’t create multiextent node Error

SecaGuy — Mon, 04 Feb 2013 05:25:39 +0000

I just upgrading my VMware ESXi 5.0 to VMware ESXi 5.1 using installation disc and I found one of my VM inside this machine cannot be started using vSphere client with following error:

Cannot open the disk '/vmfs/volumes/4a365b5d-eceda119-439b-000cfc0086f3/examplevm/examplevm-000002.vmdk' or one of the snapshot disks it depends on.

Further troubleshooting required me to SSH into the [...]

CentOS: Install OpenLDAP with Webmin – The Simple Way

SecaGuy — Wed, 30 Jan 2013 04:48:40 +0000

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 [...]

Clone VM in VMware ESXi 5 using vSphere Client

SecaGuy — Tue, 22 Jan 2013 04:07:04 +0000

I am a free VMware ESXi user. Cloning VM is no way to be as easy as VMware Workstation or vCenter. As you know, for free user, you can only manage your ESXi host directly using vSphere client. Cloning will save your time tremendously when you want to have several machines with same configuration inside [...]

CentOS 6: Install Remote Logging Server (rsyslog)

SecaGuy — Tue, 08 Jan 2013 09:36:43 +0000

In my office network, we have a lot of small devices like router and switches in our environment. My boss wants me to have a report on all of our network device for auditing purposes. To accomplish this objective, I need to have a server which run as logging server, accepting various type of logging [...]