Check MD5SUM of Image File in Linux

Some of the files which is used in our daily life especially those files consists of installation of a specific operating system are in ISO image format.  Moreover, the size of those files most of them are large. Because the size is not your average file which normally exists as one single file it also tends to corrupt.

Especially if those files acquired from download process from any link across the internet or any kind of copy process from other media such as folder sharing over the network , there will be slight a chance that those files corrupt and cannot be used in a normal way.

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PyCharm Software Installation

Pycharm is an IDE which can be used for Python programming language as we can actually see from its name which is started with “Py”. Definitely it is an utility which helps Python programmer develop their application based on python programming language. Pycharm is an IDE (Integrated Development Enviroment) developed by JetBrains. They claim it as a Python IDE for Professional Developers.

Below is details on installing Pycharm IDE in Ubuntu 16.04. I am using the Pycharm Community Edition in the installation. Basically, the installation itself involves downloading and extracting freemind and placing it in /opt directory. Below are the steps and details of the installation :

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Create Bootable Operating System Installer

Creating Bootable Flashdisk for Operating System Installation

Most of the times we are relying on device such as CD or DVD player to be able to install a fresh and new operating system. Certainly in those moments we faced a harsh reality when we do not even have any CD or DVD Player to use. The situation will also be similar if we have the CD or DVD player in our hands to be used for the operating system installation but we do not have the CD or DVD contains the bootable operating system installation.

Below we will display steps on creating a bootable flashdisk device for a new operating system installation. Since every server or workstation exists must have at least a USB interface to be used. By using the USB interface available in the server or workstation, we can plug the already configured flashdisk as bootable operating system installer to install a fresh and new operating system.

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Workstation Serial Number in Windows

Check Serial Number of your workstation in Windows Operating System

There is a command which can be used to check serial number of your workstation when you are in Windows or you are installing Windows as your currently running operating system. Below is the command which you need to type in the CLI (Command Line Interface) when you want to check the serial number of your workstation. Windows has one utility which is well-known for having its function as a command line interface.  Below is the step which is needed to be done :

  1. The utility which needs to be executed is called the Command Prompt and it can be executed by running Ctrl-R in Windows operating system. Below is the image of callable dialog box which you can use to type the utility you want to execute :


Type cmd in the textfield as shown above.

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MySQL Database Remote Access from a Network Segment

Configuring MySQL Database Remote Access from a certain Network Segment

RDBMS        : MySQL

Version          :

I am using the following version which can be found by executing the following command :

mysql --version
[root@localhost ~]# mysql --version
mysql  Ver 14.14 Distrib 5.6.26, for Linux (x86_64) using  EditLine wrapper
[root@localhost ~]#

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PostgreSQL Database Remote Access from a Network Segment

Configuring PostgreSQL Database to be accessed remotely from a limited network segment

In this article, I try to give an alternative on how to configure your remote PostgreSQL Database Server to be accessed remotely.

RDBMS                    : PostgreSQL

Version                     : 9.4

By executing the following command we will get the version which is used or which is installed in the running operating system in Linux Distribution :

We can check the version while using root account or event postgres account as follows :

[root@hostname ]# psql --version
psql (PostgreSQL) 9.2.15
[root@hostname]# su - postgres
Last login: Mon Apr 11 20:01:09 2016 on pts/0
-bash-4.2$ psql --version
psql (PostgreSQL) 9.2.15

Operating System   : CentOS 7.2.1511 (Core)

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Check Linux CentOS Operating System Version

Checking your Linux CentOS Operating System’s Version from a Command Line Interface

CentOS is one of the most popular Linux Distribution which is used as an open source operating system. It is one sample of Linux Distribution from many other which is derived from RedHat Linux family and it is maintained by Open Source Community.

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