Author: Rahul

DNS caching is a technique used by operating systems and applications to temporarily store DNS query results to reduce latency and improve the overall performance of internet browsing. However, sometimes it may become necessary to clear the DNS cache, especially when the cached records are outdated or causing connectivity issues. In this article, we will provide a step-by-step guide on how to flush the DNS cache in Ubuntu and Linux Mint. Understanding DNS Caching Unlike Windows and macOS, Ubuntu and Linux Mint do not cache DNS queries at the operating system level by default. However, many Linux distributions, including Ubuntu…

This tutorial will help you to install Let’s encrypt client on your Ubuntu system and issue SSL certificate for the domain running on Nginx web server. Apache with Let’s Encrypt SSL Manual Setup Let’s Encrypt SSL on Ubuntu Step 1 – Prerequisites Before starting work on this task, I assume you already have: Running Ubuntu system with sudo privileges shell access. A domain name registered and pointed to your server’s public IP address. For this tutorial, we use example.com and www.example.com, which is pointed to our server. Running Nginx web server with VirtualHost configured for example.com and www.example.com for Port…

Let’s Encrypt is a certificate authority (CA) providing free SSL/TLS certificates for enhanced security freely. You can generate CA-singed SSL certificate for any domain, subdomain without any cost and use on your server. It also provides an option to auto-renew SSL certificates for long time use. Nginx with Let’s Encrypt SSL Manual Setup Let’s Encrypt SSL on Ubuntu This tutorial will help you to install Let’s encrypt client on Ubuntu system. Also issue a free ssl certificate and configure with Apache server. Step 1 – Prerequisites Before starting work on this task, I assume you already have: Running Ubuntu system…

In the realm of Linux system administration, performance management plays a critical role in ensuring that servers and applications run smoothly and efficiently. One of the most powerful tools at your disposal for this task is Sysstat, a collection of utilities designed to monitor system performance and usage activity. This guide will introduce you to Sysstat, covering its installation, key components, and how to use it for effective Linux system performance management. What is Sysstat? Sysstat is a versatile toolset that allows system administrators to gather performance data and statistics about their Linux systems. It includes several utilities such as…

A frequent visit of search engine crawlers is most impotent for the quick index your site. As quick visits of crawlers to your websites makes quickly index and visible on search engines. But this depends on many key factors like quality and posts, how frequent you add new content to your site. Please find below some important tips to increase search engine crawl rate for your website. 1. Regular Site Update The first and very important is to keep update your site content regularly. All the search engines always love new content. Try to update your site on daily basis,…

Eclipse is a powerful IDE for various programming languages. In this how-to guide, we used Eclipse for Java EE developers. You can download Eclipse version required for your and the remaining steps are similar for all. Let’s follow the tutorial to install Eclipse Oxygen 4.8 on Fedora 28,27,26,25 and CentOS 7,6. Step 1 – Prerequisites Eclipse required Java to be installed on your system. Make sure you have proper Java installed. If you don’t have Java installed, Use below link for the JDK/JRE installation on your system. Install Java 8 on CentOS, RHEL, and Fedora Install Java 9 on CentOS,…

Installing the latest Nvidia drivers on Ubuntu can significantly enhance your computing experience, especially if you’re into gaming, graphic design, or video editing. Not only do the latest drivers improve the performance of your Nvidia graphics card, but they also ensure compatibility with the newest software and games. This guide will walk you through the process step by step, making it easy even for those new to Ubuntu or Linux in general. Prerequisites Before proceeding, ensure that you have: A system running Ubuntu (the steps are applicable to most Ubuntu versions, but it’s recommended to use the latest stable release).…

DNS (Domain Name System) caching is a technique used by operating systems and applications to store the resolved domain names’ IP addresses, reducing the time it takes to access websites and services. While it can be advantageous in certain situations, you may want to disable local DNS caching on your Ubuntu or Linux Mint system for various reasons, such as troubleshooting DNS issues, ensuring accurate results during development, or enhancing privacy. In this step-by-step guide, we will walk you through the process of disabling local DNS caching on Ubuntu and Linux Mint systems. You can also clear current DNS cache…

Every blogger and author wants their posts to get indexed as quickly as possible. So their new content will be visible on search engines. Generally, search engines crawlers come to website and index the new content found. But this process takes times. Using the ping services you can inform the search engines that your website have new content, so they can visit your site quickly. How to Increase Search Engine Crawl Rate for Your Website? For static sites, you can use services like Ping-o-Matic to ping the search engines. But this is a manual process. WordPress users can use this…

Note- This is a continuous updated article till the Linux Mint 19 final release available. Visit this article regularly to get latest updates. Summary The Linux Mint Team has announced the codename “Tara” for upcoming release Linux Mint 19. The new version will be based on Ubuntu 18.04 LTS release. The Linux Mint development team has started working on new release and will available after the release of Ubuntu 18.04 LTS. A comment by Linux Mint team – Mint 18.3 was full of new features. Don’t expect as many in Mint 19. We’ll focus mostly on the base, GTK, possibly…