Author: Hitesh Jethva

A virtual private network (VPN) is a protocol used to add security and privacy to private and public networks. VPNs send traffic between two or more devices on a network in an encrypted tunnel. Once a VPN connection is made, all of the network traffic is encrypted on the client’s end. VPNs mask your IP address so that your online actions are virtually untraceable. It provides encryption and anonymity, and protects your online activities, online shopping, sending emails, and also helps to keep your Web browsing anonymous. In this tutorial, we will show you how to install and configure the…

A VPN also is known as a “Virtual Private Network” is a technology that allows you to create a secure private network over the public internet. This will helps you to encrypt your internet traffic and protect your online identity. It is primarily used to connect two business networks securely over the internet and allows you to connect a business network from home. In simple terms, a VPN connects your Mobile, Computer, and Tablet to another computer (server) over the internet and allows you to access the internet using that computer’s internet and also access the local network resource by…

Hadoop is a free, open-source and Java-based software framework used for storage and processing of large datasets on clusters of machines. It uses HDFS to store its data and process these data using MapReduce. It is an ecosystem of Big Data tools that are primarily used for data mining and machine learning. It has four major components such as Hadoop Common, HDFS, YARN, and MapReduce. In this guide, we will explain how to install Apache Hadoop on RHEL/CentOS 8. Step 1 – Disable SELinux Before starting, it is a good idea to disable the SELinux in your system. To disable…

Zabbix is a free and open-source monitoring solution designed for real-time monitoring of servers, virtual machines, networks, and cloud services. It was developed by Alexei Vladishev and actively supported by Zabbix SIA. It is based on the client-server model and capable of monitoring millions of metrics, such as CPU load, network utilization and disk space consumption from tens of thousands of servers. Features Supports MySQL, SQLite, PostgreSQL and IBM DB2. Monitor different system matrics including, Memory, CPU, Disk, Process. Monitor network devices, hardware, virtual machines, VMware hypervisor and VMware vCenter. Supports multiple authentication methods like, LDAP and Active Directory. Provide…