Linux is an open source operating system that requires minimum hardware requirement to work which makes it more robust and its license makes it free for everyone to install and use it on their computers. Linux is available in various flavors and Ubuntu is very popular among them due to its user-friendly environment and vast support for hardware and software. At times, you may feel exhausted with Windows or you might need Linux for some of your projects, in such case you want to install Linux/Ubuntu and do not want to lose the already installed Windows. You can return to the… [Read More]
Tips on How to Speed Up Your WordPress Site
Everyone needs their sites to load and work as quickly as possible. But this will not happen by itself, especially if the site is filled with quite heavy content and it is visited by a huge number of people. CMS WordPress is not a sample of an ideal fast platform, but there are ways to help speed up the site load. Remember that this affects not only the loyalty of visitors but also the place of your site in the search results since Google uses the page load time as one of the ranking factors. You can check the download speed of the… [Read More]
20 Awesome Nmap Command Examples for Linux
Nmap (Network Mapper) is a free open source utility for scanning networks and auditing network security. Nmap uses a variety of different scanning methods (UDP, TCP, TCP SYN, FTP, ICMP, etc.), and also supports a large number of additional features. Most nmap operations require root authority. When you run nmap on behalf of a normal user, a large number of functions will not be available. Below you will find 20 basic examples of using the Nmap command. You will learn how to use Nmap from the command line in Linux to find active hosts on the network and scan open ports. You will learn… [Read More]
Deploy Your First Docker Container
The command docker runserves to launch Docker containers from images. In this article, We’ll show you how to run a container from an image using the example of the latest official base Docker image of Ubuntu. We’ll show you how to install apache2inside a container with Ubuntu and how to save this container as a new image. And in the end, you will be able to run containers from this new image in the interactive and background modes. Good advice: An image vs. Container … What’s the difference? Read More → Running the Container from the Image into the Docker Do not Confuse: The Docker image… [Read More]
Install Docker in CentOS 7
For those who want to build and run Docker-containers in CentOS-7 – first of all, it is necessary to install the Docker itself. To install the latest version of Docker and be able to update it in the future without any problems – it is recommended to install Docker from the official repository. Tip: Install Docker on Ubuntu 16.04 Xenial Xerus Read More → In this tutorial, I’ll show you how to install a free Docker CE (Community Edition) in CentOS-7 from a stable official repository, how to make sure that it is installed correctly and that you usually need to do… [Read More]
How to add a Service to Startup in Ubuntu or CentOS
Very often there is a need to remove or add some service to startup in Linux. There are different initsystems, but in Ubuntu and CentOS the most common are SysV, Upstartand systemd. Depending on the Linux distribution, the behavior of the service during system startup can be configured using the systemctlor commands chkconfig. This tutorial shows you how to remove or add a service to startup in the most popular Linux distributions – Ubuntu and CentOS. Good advice: Do you want to become a DevOps engineer? Then you must know Git! This article will help to really quickly master the basics of Git! Read more → Ubuntu-16.04 Supported releases: Ubuntu-15.04, 15.10,… [Read More]