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Howto delete a column from a table in MySQL/MariaDB Databases
In this post, I’ll show you how to drop a column from a table in MySQL/MariaDB databases. Sometimes you need to drop a wrongly created column in your table, or sometimes when you deploy a rails application and there is a database migration, if the deploy fail for any reasonRead More
How to Install the Latest Stable Google Chrome on Ubuntu 16.04 LTS
In this post, we will show you how to install the latest stable google chrome browser on Linux systems (Debian Family “Ubuntu 16.04 LTS and Debian 8 Jessie ”). This tutorial is for Linux beginners and experts, showing 2 ways to install Google Chrome on Ubuntu 16.04 LTS Xenial Xerus.Read More
How to Upgrade MariaDB 5.5 to MariaDB 10.1 on CentOS 7 Linux Systems
In this post, we will show you how to Upgrade MariaDB 5.5 to MariaDB 10.1 on Linux systems (RPM Family “Redhat /CentOS /Scientific Linux 7 and newer releases of Fedora ”). This tutorial will help you to upgrade the default shipped MariaDB 5.5 with CentOS/RHEL 7 to The latest stableRead More
How to Create and Drop database in MongoDB NoSQL Database Servers
In earlier articles we have provided the steps to install MongoDB on CentOS and RHEL or Ubuntu and Debian Systems. Now find this article to how to create and drop database in MongoDB NoSQL database server in a very easy steps 1. Create Database in MongoDB It’s strange to listenRead More
How to Create and Drop Users in MongoDB NoSQL Database Servers
In this post, we’ll show you the users administration basics in MongoDB database server. MongoDB is a nosql database server. The default installation provides you the access of database using mongo command through command line without authentication. In this tutorial you will learn how to create users in Mongodb serverRead More
How to Configure Static DNS on CentOS/Redhat/Fedora Linux Systems
If you want to hard-code DNS servers to use on CentOS or Fedora, the method can differ, depending on whether you use Network Manager or network service. On RHEL based systems, Network Manager is used to manage network interfaces by default, while you can switch to network service. Configure staticRead More
How to Use Wget Command on Linux Systems with Examples (Wget Download Examples)
In this post, we’ll show you how to use wget command on Linux systems. Here’s you’ll find some important examples. wget utility is the best option to download files from internet. wget can pretty much handle all complex download situations including large file downloads, recursive downloads, non-interactive downloads, multiple fileRead More
How to prevent a package from being updated in Debian/Ubuntu Linux Systems
If you want to update all the packages other than one in your Debian server follow this procedure There are three ways of holding back packages, with dpkg, aptitude or with dselect. Option1: Using dpkg Put a package on hold echo “package hold” | dpkg –set-selections Example echo “apache2 hold”Read More
How to Manage Packages in Debian/Ubuntu Linux Systems Using apt-get and dpkg Commands
In this post, we’ll show you how to manage packages in Debian/Ubuntu Linux systems. Being able to install, remove, update, etc.. packages in Debian Linux systems is very important task for everyone “users and administrators” which increase your OS performance and removes security threads. Debian and Ubuntu Linux provides aRead More
How to Use CURL Command on Linux Systems with Examples (CURL Download Examples)
In this post, we’ll show you how to use curl command on Linux systems. Here’s you’ll find some important examples. CURL is a software package which consists of command line tool and a library for transferring data using URL syntax. cURL supports various protocols like, DICT, FILE, FTP, FTPS, Gopher,Read More
