Gtop, a command line dashboard for system monitoring

Those who are familiar with Linux system must know the top command. We can monitor our system usage by using top command like cpu, memory etc. There is another command which does the similar things like top, but instead of displaying the output in a raw text format, gtop produce …

CONTAINERIZATION: MEET THE FUTURE VIRTUALIZATION

Over the past decade virtualization technologies have gone from educational tools to full blown IT solutions. Virtualization has many benefits, among them application isolation and utilization of hardware resources are most valuable cause it gives more operational flexibility. Many organizations invest their money in virtualization technology. Virtual environment is easier …

Linux firewall for ipv6 traffic

iptables, The most common and widely used Linux firewall for IPv4 traffic. Like iptables, Linux has another firewall utility called ip6tables which is used for IPv6 traffic. These two tables need to configure separately for IPv4 and IPv6 packet. In this tutorial we will see how to configure ip6tables in Ubuntu …

How to deploy MHN (Modern Honey Network) Server on EC-2 Instances

A honeypot is a computer software or device that exists only for attack. Yes, that’s the main goal of a honeypot. When you deploy a honeypot the main goal of the system is to be attacked. When a hacker interact with the honeypot, it starts logging the activity of the …

How to deploy multi node OpenStack cloud on your laptop (Part-1)

Deploying a cloud solution like OpenStack is hard. You have to install different services on different server, perform many different functions to orchestrate the cloud. It is a common question for those who wants to deploy OpenStack that how to start? How can I ensure that everything is in order  or every component …

How to implement 2 factor authentication for SSH on Ubuntu 16.04

Hello everyone. Today I’ll show you how to implement 2 factor authentication for SSH on Ubuntu 16.04 server using the Google Authenticator app. We will use ssh key (1st factor) and a randomly generate code (2nd factor) by Google Authenticator to login to our Ubuntu server. I use Amazon EC2 …

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