In this article, we will learn about how to install and configure Go (golang) which is developed by Google and its open source programming language. It’s a simple, efficient and reliable programming language for development with minimalist.PrerequisitesA CentOS machine installed.A non-root user with Sudo permission on the CentOS machine.Downloading and Installing the GOThe Go (golang) is not up to date on the CentOS repository, so we will manually download and install the package directly from the Go lang website and also make sure that we have the latest version which is compatible with our system architecture.Let’s move to the writable ... Read More

In this article we will learn how to use ‘systemctl’ command, ‘systemctl’ is a new command which is available in the new version of Linux distributions which is used to control the system and services, we will explore some possible ways to use the ‘systemctl’ command in Linux.Checking Services StatusWe can verify the status of the services using this command. Below is the command to check the service.# systemctl status httpd httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled) Active: active (running) since Thu 2016-06-02 06:48:58 EDT; 27s ago    Docs: man:httpd(8)    man:apachectl(8) Main ... Read More

This article will help us to understand the multiplex SSH sessions by setting up a master session, then having subsequent sessions by using multiplexer to speed up the SSH connection on Linux.MultiplexingMultiplexing is nothing but send more than or more over a single connection of SSH and can reuse the existing TCP/IP connection for multiple concurrent SSH connection. This will reduce the load of creating new TCP connections on the server.Advantages of Multiplexer on SSH Connection.It uses the existing *inx socket to connect.IT uses existing TCP/IP connection no more new TCP/IP.No more key exchanges.No need of authentications.Configuring MultiplexingIf the config ... Read More

Cat command is a well known Unix utility that reads files sequentially. Writing them to conventional output. The name is derived from its function for concatenating and listing the documents. Tac (that is “cat” backwards) concatenates every record to traditional output much like the cat command. However in opposite: line-by means of-line, printing the last line first. This article explains about “How to use ‘cat’ and ‘tac’ commands with examples”.The basic example of cat command should be like this –$ cat text.txtThe above command is to read files and display them to stdout, meaning to display the content of files ... Read More

To install speed test CLI command line, it should require Python ppi. Use the following command to install Python ppi .$ sudo apt-get install python-pipThe sample output should be like this –Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required:    libbs2b0 libopusfile0 libqmmp-misc libqmmpui0 libsidplayfp    linux-headers-4.2.0-27 linux-headers-4.2.0-27-generic    linux-image-4.2.0-27-generic linux-image-extra-4.2.0-27-generic    linux-signed-image-4.2.0-27-generic php7.0-opcache Use 'apt-get autoremove' to remove them. The following extra packages will be installed:    python-chardet-whl python-colorama python-colorama-whl python-distlib    python-distlib-whl python-html5lib python-html5lib-whl python-pip-whl    python-requests-whl python-setuptools python-setuptools-whl python-six-whl    python-urllib3-whl python-wheel Suggested packages:    python-genshi Recommended packages: ... Read More

In this article, you will learn about how to set up Apache virtual hosts on an Ubuntu Linux. During this process, you will learn how to serve different sites to different users depending on the domain/site they are requesting.Apache Web ServerThe Apache web server is the most popular and powerful way of serving web sites on the internet. It is used for more than half of all the active websites on the internet and is extremely powerful and flexible.Apache gives its functionality and the components to individual units which can be customized and configured independently. The basic unit that describes ... Read More

Text editors can be utilized for writing code, enhancing text files such as configuration records, developing person guideline documents and plenty of extra. In Linux, text editors are of two kinds ie., graphical user interface (GUI) and command line text editors. This article explains about how to install best Open Source Text Editors.Vi/Vim EditorVim is designed for use of both command-line interface and as a standalone application in a graphical user interface. Vim is free and open source software and is released under a license that includes some charity ware clauses. To install vim editor, use the following command –$ ... Read More

In this tutorial, I will be explaining about – how to set up a secure connection to MySQL server using an SSH connection for encryption so that data in the database will be in safe and which is impossible for hackers to steal the data. SSL is used to verify the means of SSL certificates which can protect against phishing attacks. This will also show you – how to enable SSL on MySQL server also.Enabling SSL SupportConnect to the MySQL server and check that SSL status of the MySQL server# mysql -u root -p mysql> show variables like '%ssl%'; Output: ... Read More

In this article, we will allow you to configure a password-less login for Linux system with SSH keys to connect to a remote Linux server without entering a password which will also increase the trust between two Linux servers for easy file transfer.SSH is an open source and trusted network protocol that is used to login into remote servers for executing of commands and programs. This is also used to transfer files from one computer to another computer over the network using secure copy (SCP).Creating SSH Keys# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to ... Read More

Atom is a free and open-source text and source code editor for OS X, Linux, and Windows with support for plug-ins written in Node.js, and embedded Git Control, developed by GitHub. Atom is a desktop application built using web technologies. Most of the extended packages have free software licenses and are community-built and maintained. It is having a simple and intuitive graphical user interface and a bunch of interesting features for writing − CSS, HTML, JavaScript and other web programming languages. Among others, it provides support for macros, auto-completion – a split screen feature which integrates with the file manager.This ... Read More