How Linux Has Influenced the Development of Web Open Source Technology

On January 16th 2016, The Linux Foundation has announced The Extended Learning Linux Foundation Scholarship Program – an educational program aimed to help people from unprivileged backgrounds in acquiring the skills they need to start their careers in information technology. The Foundation hopes to expand the program throughout the world in a couple of years, […]

CVE-2014-7169 BASH Vulnerability for Linux & How to fix it

CVE-2014-7169: BASH Vulnerability Affecting Linux & OS X Systems What is CVE-2014-7169 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the […]

Even Secure is not Secure anymore: Heartbleed bug

Heartbleed Bug: All you want to know about Till now, whenever we did any transaction on Internet whether it will be online shopping or doing money transfer using online banking or logging into Gmail or Facebook we have always checked the LOCK  , which gave us an assurance that all our transactions and information we […]

Howto Install Wave in a box (Apache) on CentOS

Install Wave in a box (Apache) on CentOS Google had unveiled a real time messaging platform in 2009, and in April 2012 Google discontinued wave and released its source code to open source community. Apache Software Foundation consequently accepted Google Wave into its incubator program. Apache Wave is a distributed, near-real-time, rich collaboration platform that […]

Another operation involving the object is currently in progress

If any VM shows error “Another operation involving the object is currently in progress” during a reboot/shutdown on Citrix Xen (XCP) based host, please perform following actions to fix the issue Get the VM UUID: Use the command “xe vm-list name-label=<VM NAME LABEL>”. Output of the command will show the UUID, name-label and power-state of […]

How-To Setup and Configure DNS Server for Oracle RAC

DNS setup is a important part of Oracle (11g 2RAC) configuration as it is used for Single Client Access Name (SCAN). In this post I am going to explain how you can configure DNS server for Oracle RAC. I have created two Cirtix XEN based VM and installed Oracle Database on them. I have created […]

Ubuntu Forums Hacked and Down

_ – The official community forum of Ubuntu Operating System has been hacked by an external attacker. Following is the notification (notifying Ubuntu Forums Hacked) have sent to all the registered users: You are receiving this message because you have an account registered with this address on The Ubuntu forums software was compromised by an […]

How-to create your own systemd service files

Many Linux operating systems, like OpenSuse, Fedora are using Systemd daemon instead of Linux init based daemon (known as systemV). Systemd is meant to provide a better framework for expressing services’ dependencies, allow more work to be done in parallel (concurrently) at system startup, and to reduce shell overhead. I use a script (I made […]

Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

Recently I have worked on a project where I have to stream a video on Internet which will be then accessed by the Servers on different locations and those servers will then stream the same video to the sub-ordinate systems simultaneously. Using this we can reduce the Load on Main Streaming Server as well as […]

How to Convert/Migrate/Move/Copy MSSQL Database to MySQL Database?

Scenario Your Company/Organization/Institute maintains certain data in MSSQL 2000 but now on suggestion of System Analyst or database administrator you want to move the data to MySQL 5.x. Questions? 1) How to migrate the data? 2) Do we need to recreate the complete database schema? 3) Can we use any third Party Application to convert […]

Error: Cannot fork: Resource temporarily unavailable

Recently my friend (a Developer) came to me with a problem he was facing on his testing server which executing a Perl script. I have checked and found that the Perl script was throwing error “Cannot fork: Resource temporarily unavailable” while executing it. [~]# /usr/local/bin/perl /home/test/cr/ Cannot fork: Resource temporarily unavailable at /usr/lib/perl5/site_perl/5.8.8/Parallel/ line […]

BlueProximity: Lock Computer using your Phone

BlueProximity is a tool which detects your mobile phone via bluetooth and locks your computer when your bluetooth phone is out of bluetooth reach. If you move away from your Desktop of computer and the distance between you and computer is more than a certain limit for a given time, BlueProximity will lock it automatically. […]