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.

Installing Squish

Rumi, November 9, 2008November 9, 2008

Well, install squint is quite simple! But installing squish is quite tricky- the document provided is not sufficient to cover few steps. I’ll try to summerize it (I’ve tested it on FC-5 distro)- Step -1 Make backup of your squid.conf for in case things go wrong. Install perl GD module….

Installing GD.pm on Fedora-5 distro

Rumi, November 9, 2008

Using “yum install GD” or “yum install perl-GD” or any other didn’t help me installing GD perl module. However, an exceptional tricky yum did give me a success. So, let me put it here before I forget to do it in the future! yum -y install perl-GD

Squint and Squish 2 cute admin tool for Linux :)

Rumi, November 9, 2008November 9, 2008

Well, Leading Edge Business Solution from South Africa- do created 2 excellent and to my view most essential tools for network administration to sniff users and warn them! Actually they run on linux environment with Squid Proxy server running on the network to serve clients (likely network clients).

How smart is Your Right Foot?

Rumi, November 6, 2008

Just try this. It is from an orthopaedic surgeon………… This will boggle your mind and you will keep trying over and over again to see if you can outsmart your foot, but, you can’t. It’s pre-programmed in your brain!

Obama makes history; turns to sobering challenges

Rumi, November 5, 2008November 5, 2008

WASHINGTON – His name etched in history as America’s first black president, Barack Obama turned from the jubilation of victory to the sobering challenge of leading a nation worried about economic crisis, two unfinished wars and global uncertainty.

Be Careful when eating apples!

Rumi, October 28, 2008

Please don’t eat the skin of the apple because it’s coated with wax. Check before you eat many of the fruits. WAX is being used for preservation purposes and cold storage. You might be surprised especially apples from USA and other parts are more than one year old, though it…

mynetworks issue!

Rumi, October 28, 2008

Need to allow the entire IPv-4 in postfix set-up? You should be crazy to do that 🙂 Anyway, here goes the net mask calculaitons,

Postfix 2.2.3 main.cf configured sample file

Rumi, October 28, 2008

queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix mail_owner = postfix myhostname = server.domain.com mydomain = domain.com myorigin = $mydomain inet_interfaces = all mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, mail. $mydomain, www.$mydomain, ftp.$mydomain local_recipient_maps = unknown_local_recipient_reject_code = 550 mynetworks = 192.168.1.0/24 127.0.0.0/8 #relay_domains = $mydestination #relayhost = $mydomain #relayhost…

Suexec error when Checking Configuration

Rumi, October 27, 2008October 27, 2008

I am running Virtualmin 3.62 GPL on CentOS 5.2 After the upgrade to Virtualmin 3.62 today, the system ported me to run configuration re-check. When I do it it returns the error below:

Search for a File in Linux

Rumi, October 27, 2008October 27, 2008

Locating any file on a linux operating system can be done quickly from the command line. Step 1 Index your file system with updatedb. This makes a list of files so that later searches won’t have to look in the entire span of directories each time.