Author: Rumi

Hasan T. Emdad is an ICT Solution Architect, Project Manager with 12+ year expertise in HW selection, OS expertise on Linux and MS, Supervising Application SW on Pearl, Java, dot Net and PHP with DB experience of MySQL, Postgre, MS and Oracle. He was involved in setting up several Turn Key ICT including Telecom based projects on various government and autonomous bodies in the country. Developed more than 50 applications running with different operators and users. Managing a team of more than 10 in-house engineers and developers and manages an outsourcing team experts and contributors. Very recently engineered Public Key Infrastructure (PKI) on Enterperise and Root Certifying Authority and deployed scalable Cloud Computing and Managed Services. He has post graduated (MBA) from University of Dhaka, Bangladesh.

BIND ACL to restrict zone trasfer with IP address

Rumi,

You need to define ACL in /etc/named.conf or /etc/bind/named.conf.local file. Let us say IP 1.2.3.4 and 1.2.3.5 are allowed to transfer your zones. # vi named.conf or vi /etc/bind/named.conf.local Here is sample entry for domain domain.org.bd (ns1 configuration): acl trusted-servers { 1.2.3.4; //ns1 1.2.3.5; //ns2 }; zone “domain.org.bd” { type…

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LEMP on Centos 6

Rumi,

In this guide, we’ll walk you through installing all of these components (except for Linux, which is already installed as your OS when you create the server). Install the Extra Packages for Enterprise Linux Repository (or EPEL for short):sudo yum install epel-release Run a yum update to sync your packages with the…

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Setup Percona on Debian 7

Rumi,

MySQL multi-master replication is an excellent feature within MySQL. However, there is only one problem; standard multi-master replication seems to never be as stable as something like master-slave replication. It is always in need of attention. That is where Percona comes into play. The Percona team has developed an amazing…

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Install LEMP with phpmyadmin on CentOS 7

Rumi,

To add the CentOS 7 EPEL repository, open terminal and use the following command: yum install epel-release Since we are using a sudo command, these operations get executed with root privileges. It will ask you for your regular user’s password to verify that you have permission to run commands with root privileges….

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stress test your web server with httperf

Rumi,

Httperf is a tool for measuring web server performance. It provides a flexible facility for generating various HTTP workloads and for measuring server performance. NOTE : for accurate results, it’s best to run httperf from a remote machine and not from the localhost to install httperf in red-hat based distributions…

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