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.

pressflow varnish installation and configuration

Rumi, March 24, 2013March 24, 2013

Installation Varnish is the key software that speeds up your web site. It is Open Source, built on industry standards and requires very few resources. Varnish is distributed in the EPEL (Extra Packages for Enterprise Linux) package repositories. However, while EPEL allows new versions to be distributed, it does not…

Munin Installation on Linux

Rumi, March 24, 2013

Installation on Debian/Ubuntu? If you are running Debian/Ubuntu?, you are in luck. Munin node Since "Munin Node" is in the standard repository, you can just type: # apt-get install munin-node Munin master Since "Munin master" is in the standard repository, you can just type: # apt-get install munin Installation on…

Munin to monitor mysql on Debian 6

Rumi, March 19, 2013

First we need to install some Mysql-Munin perl libraries: apt-get install libipc-sharelite-perl Also some Perl stuff will be needed: perl -MCPAN -eshell install IPC::ShareLite Next let’s activate Munin Mysql plugin: Assuming you have already installed both munin & mysql ln -s /usr/share/munin/plugins/mysql_* /etc/munin/plugins Restart both Apache & Munin: /etc/init.d/apache2 restart…

MySQL Root Password Reset

Rumi, March 18, 2013

First things first. Log in as root and stop the mysql daemon. Now lets start up the mysql daemon and skip the grant tables which store the passwords. mysqld_safe –skip-grant-tables You should see mysqld start up successfully. If not, well you have bigger issues. Now you should be able to…

Hide the Apache Web Server Version number with ServerSignature and ServerTokens directives

Rumi, March 7, 2013

You can easily hide Apche (httpd) version number and other information. There are two config directives that controls Apache version. The ServerSignature directive adds a line containing the Apache HTTP Server server version and the ServerName to any server-generated documents, such as error messages sent back to clients. ServerSignature is…

Load Balanced IIS behind ldirectord loadbalancer

Rumi, February 25, 2013

Cluster Nodes Configurations (IIS6/7 Real Web Server Configuration) 1. Create text file by using Notepad and name it "check.txt" 2. Fill this file with "webserverisworking" string. 3. Move file to "C:\inetpub\wwwroot" or anywhere your web files are. If you are using Windows XP/2003 IIS web server then you should do…

Securing directory using .htaccess file

Rumi, February 25, 2013October 20, 2013

First make sure your Apache configuration is set for allowing .htaccess. Read this Article first before you move to the next steps. .htaccess File Creation: Let's assume /test-dir1 is to be password protected. $ cd /var/www/html/test-dir1 $ vi .htaccess Write the following lines into this file: AuthName "Authorized Users Only."…

Install htop in Linux- Redhat/CentOS/SL and Debian/Ubuntu

Rumi, February 18, 2013

There are times you want to have a better control over the system processes and usage and also having a better visual of RAM and CPU usage on your server.As You may already know there is a Linux command called top which will show the resources and users cpu usage…

Many-To-One Mappings IIS

Rumi, February 13, 2013February 13, 2013

Many-to-one Client certificate mapping is used by the Internet Information Services (IIS) to associate an end user to a windows account when the client certificate is used for the user authentication. The user session is executed under the context of this mapped windows account by IIS. For this to work…

Apache Web Server .htaccess File functional

Rumi, February 8, 2013

.htaccess is Apache's directory-level configuration file. It allows end user to configure authentication and other options without editing main httpd.conf file. Make sure AccessFileName set to .htaccess Search httpd.conf for AccessFileName directive. It defines name of the distributed configuration file: # grep -i AccessFileName httpd.conf Make sure users are allowed…