What are Docker and Containers: An introduction

Docker Error: Failed to determine cgroup for the ‘cpu’ subsystem: Failed to read /proc/1232/cgroup.


Failed to determine cgroup for the ‘cpu’ subsystem: Failed to read /proc/1232/cgroup: Failed to open file: No such file or directory.  Container b8d8339ac8e6cbfb17111456dcd919b51231232131231233931cee8cfc3f87 failed to exit within 40 seconds of signal 15 – using the force Recently I came across this error which lead to a lot of debugging and at the end I found

Reverse Proxy Server

Reverse proxy vs forward proxy.


You may have heard the name of proxy servers and what they do. In this part of article we will be talking about the difference between reverse proxy server and forward proxy server. Why are they used and how you can setup a proxy server. Lets see Reverse proxy vs forward proxy. Forward Proxy Server: Forward

Unable to do ssh into machine.


Unable to do ssh into machine? I have seen this problem many time and i know this is one of the problems that everyone faces. Below are my personal list of things that you can try to solve this problem. Check for key permissions. This happens if you key or pem file does not have

What is a nameserver and how to run one

What is a nameserver and how to run one?


If you are working with websites and networking, you must have heard of the name of ‘NAMESERVERS’. We will try to figure out what exactly are these and how to install one and use it. Lets see what is a nameserver and how to run one What is a nameserver? These are the servers running

What is chef-server and how chef-server works

What are chef servers and how to work with chef?


When you come in the world of infra/machine provisioning one of the big things that you hear talk about is Chef. In this article we will see what exactly is chef and how it works to make you provision your machines faster. Lets see what are chef server and how to work with chef?  

What exactly are APIS and how to build one?

What are APIS and how to build API?


If you are working in software or IT industries, this is one of the word that you may hear alot. Many of you are well aware of what exactly are apis and how to build one. For those who are not aware, In this article i will try to tell you the basics of apis.

build desktop notifier using python

Build desktop notifier using python and notify2.


You must have heard about desktop notifier, today we are going to build one and see how it works. We are going to do it using python and we will do it on ubuntu for now. So, lets start to build desktop notifier using python. Lets build desktop notifier using python For building this we