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How to enable DNS-over-HTTPS on Firefox?

A vital aspect of Internet surfing today is privacy. However, many people who are unaware of the advanced use of computers neglect the security...

How to Install OpenNMS on Centos / RHEL 8.

What is OpenNMS? OpenNMS is a free & open source highly configurable, scaleable, extensible and cross-platform network Monitoring and network management platform. It is built...

How To Install Nagios 4 on Centos 8 / RHEL 8.

Nagios is network monitoring tool. In this tutorial, we will learn how to Install and configure Nagious 4 on Centos / RHEL ...

How to Setup Icinga 2 Web interface on Centos / RHEL 8.

Prerequisites: Web ServerPHP 5.6.0 and above with cURL, gettext,intl,mbstring,OpenSSL, and XML support.LDAP libray(PHP) or Active Directory Authentication.PHP libraries for MySQL or PostgreSQL Installing PHP...

How to Install Cacti on Centos / RHEL 8

What is Cacti?  Cacti is an open source monitoring tool which covers network as well as graphing.  It was designed to provide an easy...

How to install NTopng on Debian 10?

Analyzing data for information can be a cumbersome task on a computer network. However, it can be easier if we have the necessary tools...

OneDrive Personal Vault. How to use it.

Hello, how are you? Let's talk about cloud storage. This is one of the most modern and comfortable options to store our data. It...

How to Install GCC & Development Tools on Centos 8 / RHEL 8

How to install GCC & Development Tools on Centos 8 / RHEL 8. RHEL is the best one for developing critical application also it...

Overwrite in Windows 10. A program that overwrites empty space on the disk.

Hello, I hope you're all right! Today we are going to talk about security. Specifically we'll see about hard disk space. The white space...

Discovered vulnerability in sudo. Upgrade your system now!

One of the great advantages of using open source software is that its code is customizable by anyone. This brings the great advantage that...

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