Category: Techno Babble

You’ve finally made the bold decision to make a switch from Windows 10 to CentOS 7, which is a cool decision by the way. You may have tried running CentOS 7 as a virtual machine …

A “LAMP” stack is a collection of open-source software that is generally installed together to allow a system to deploy dynamic applications. This term is an acronym which describes the Linux operating system, Apache web …

Have you ever fancied a portable instance of a CentOS 7 installation in your USB pen drive? You probably might not have known it, but you can easily install CentOS 7 in a USB drive …

Angular is an open-source, popular and highly-extensible front-end application development framework, used for building mobile and web applications using TypeScript/JavaScript and other common languages. Angular is an umbrella term for all Angular versions that come …

One of the simplest ways of watching against out-of-memory problems in applications is to increase some swap size in your server. In this article, we will explain how to add a swap file to an …

One of the commonest errors CentOS users encounter when using YUM package manager (for example running yum update command), especially on a freshly installed system is the “Cannot find a valid baseurl for repo: base/7/x86_64”. …

If your data center depends on VirtualBox and your virtual machines depend on the USB device, you’ve perhaps noticed that USB doesn’t support by default unless you’ve manually enabled it. In this article, we will …

User Directory or Userdir is an Apache module, which allows user-specific directories to be retrieved through an Apache web server using the http://example.com/~user/ syntax. For example, when the mod_userdir module is enabled, users accounts on …

TLS 1.3 is the latest version of the Transport Layer Security (TLS) protocol and it is based on the existing 1.2 specifications with proper IETF standard: RFC 8446. It provides stronger security and higher performance …

Redis (which means REmote DIctionary Server) is an open-source, well known and advanced in-memory data structure store, used as a database, cache and message broker. You can consider it as a store and a cache: …

A Linux administrators task is to typically install, upgrade, and monitor a company’s software and hardware while maintaining the essential applications and functions which include security tools, emails, LANs, WANs, web servers, etc. Read Also: …

A Node.js process manager is a useful tool to ensure that a Node.js process or script runs continuously (forever) and can enable it to auto-start at system boot. It allows you to monitor the running …

Node.js is a lightweight and powerful JavaScript run-time environment platform which is based on Chrome’s V8 JavaScript engine and it is used to create scalable network applications. In this article, we will guide you on …

In RedHat Enterprise Linux 8, Python doesn’t come preinstalled. The main reason for this is that the RHEL 8 developers didn’t want to set a default Python version for users. Therefore as a RHEL user, …

DNS (Domain Name System) is a fundamental facilitator of several networking technologies such as mail servers, Internet browsing, and streaming services e.g. Netflix and Spotify, among others. It works on a special computer called a …

SSH is the most secure means of connecting to Linux servers remotely. And one of the common errors encountered while using SSH is the “ssh: connect to host port 22: No route to host”. In …

In our last article, we have described in detail on how to install and configure an FTP server in RHEL 8 Linux. In this article, we will explain how to secure an FTP server using …

In our first part of this article, we have described in detail on how to install and configure the latest OpenNMS network monitoring platform on CentOS/RHEL as well as on Ubuntu/Debian server. In this article, …