DKIM or DomainKeys Identified Mail is an authentication protocol used to validate the identity of a sender. It’s an important…
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Composer is a dependency management tool for PHP that allows you to declare the libraries your project depends on and…
Apache Kafka is an open-source, distributed event streaming platform developed by the Apache Software Foundation. This is written in Scala…
An environment variable contains a value, that is used to change the behaviors of the processes at run time. Similar…
Apache Solr is an open-source search platform written on Java. Solr provides full-text search, spell suggestions, custom document ordering and…
Microsoft .NET Core is a free and open-source software framework designed with keeping Linux and macOS in mind. It is…
The latest Ubuntu systems use GNOME as a default theme. GDM3 is the default display manager which is responsible for…
The Problem: While upgrading the Ubuntu OS version, I faced the following issue with the do-release-upgrade command. Even all the…
LightDM is a free, opensource and lightweight X Display Manager for Linux Desktop systems. It is also used as a…
Recently I created a Ubuntu desktop virtual machine in the Hyper-V platform. After login to the desktop realises that the…