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