Issue Description I have been using Docker Swarm for quite some time to manage a cluster of applications running on EC2 instances on AWS. Everything was fine with my docker swarm cluster until I have enabled AWS Auto-Scaling on docker... Read more about Docker Swarm ECR Auto-Login
Issue Recently I was working on project where I needed to get the default active ethernet interface using SaltStack. Finding the default interface is quite important when it comes to configuring networks or applications. I wanted something similar to route... Read more about How to find the default active ethernet interface using Salt State
I am big fun of Docker, it makes development fast and reliable. Since I am a big fan, I am trying to use docker whenever I get the chance. I have a many automated jobs running on daily basis. I... Read more about How to run cron jobs with Docker and AWS ECS
Recently I automated a java application that runs everyday at certain times. The java application was running as Docker container on AWS ECS. Since the java application was communicating with 3party service through REST API, there was a chance that... Read more about Logback email alert using Gmail
In my previous post how to setup DHT11 with Raspberry PI, I promised that I will post another article once I finished a small using this sensor. Before jumping to the full tutorial, let me explain how I end up... Read more about How to create serverless realtime temperature graph using AWS and RaspberryPi
Recently I have decided to make small project to measure my apartment temperature. so I started looking for a module to achieve this. I found that DHT11, which is the most common and efficient module, it’s very cheap and it... Read more about How to setup DHT11 humidity temperature sensor on Raspberry PI
Finally I purchased a Raspberry PI, I have to admit that this device is very power full and there is so much you can do with it. Once I complete any project I will share with you the complete Tutorial.... Read more about How to install Raspbian and SSH to Raspberry Pi
SSH is very secure protocol to access and administrate remotely your servers. as result the ssh daemon must exposed to internet. Any service exposed to internet it’s unfortunately exposed also to security threats. Brute force attacks can be run against... Read more about How to prevent unauthorized SSH login attempts - Fail2Ban
JVisualVM is a great tool for monitoring JVM regarding memory issues, threads and GC … etc. There are two modes of communication between VisualVM and the JVM either over JMX or jstatd. In this post I will only go through... Read more about How to monitor a remote JVM over SSH with JVisualVM
I find AWS CloudWatch very useful when it comes to monitor system/application logs. CloudWatch service provides a friendly UI to search inside your logs. Also it offers very flexible way to select logs of specific date or date range. What... Read more about How to setup up AWS CloudWatch Logs
What I m trying to do Rotate my logs everyday at midnight, archive the rotated files. then upload them to an S3 bucket. all archived files on S3 will be referenced with a timestamp, to make the search process easy... Read more about How to setup up logroate with aws s3