Fix: Cannot start container Subnet sandbox join failed error from docker
Error : Few docker containers don’t start up. In the /var/log/syslog they give the error “Cannot start container Subnet sandbox join failed…&#...
Category: Technology
React Ajax call on load gives : “Error: Should not already be working.”
Problem : On page refreshes, the ajax calls in the componentDidMount functions throws the error : “Error: Should not already be working.” Reason : P...
Fix : The repository ‘http://archive.ubuntu.com/ubuntu disco-backports Release’ no longer has a Release file.
Issue : When doing an apt update, we get the this error.The repository ‘http://archive.ubuntu.com/ubuntu disco-backports Release’ no longer has a Re...
Cannot connect to DB from a process inside Docker container ? This could fix it.
I had recently hit a blocker to production deployment, when my processes just won’t connect to my Cassandra DB from within their containers. This is how I...
Open ports in Ubuntu’s firewall using IP Tables
On the terminal, do the following to open port 80 sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT sudo iptables -F Persisting the rule changes across boot cy...
Make a new disk available in Ubuntu on AWS or Azure
To make a new disk you just added to the Ubuntu device, please go through the following steps – Check whats the /dev path of the disk. On terminal, run- Y...
Ubuntu : retain host-name change after a reboot
Problem: The newly set hostname reverts back to older one after reboot Reason : Hostname is reset by cloud-init Solution : Inactivate cloud-init. On terminal, k...
Machine Learning – the basics
Hey there ! So you are a programmer, wanting to master machine learning ? You are at the right place. Lets get started. So, what exactly is machine learning ? W...
Fixing Cqlsh Import Error
Problem: Running Cqlsh exits with the error : Fix: Set right python path KjKj [/.] Sreekumar programs computers as a hobby and profession. Into programming from...
Planning conversational Automation – Here’s what you should look for !
Are you planning to bring in conversational automation using AI to make your processes more cost effective and consistent ? There are certain things I would lik...