Kafka: Running multiple instances of Kafka in the same host
In situations where you want run a cluster of brokers, but do not have spare hosts, you may run multiple brokers nodes in the same server host. For this you will require seperate copies of…
Kafka: Basics – terminologies
Kafka is a middle-ware application developed by Apache Foundation, used for building real-time data pipelines and streaming apps, which is scalable and has fault-tolerant capabilities. Posted below are the basic terminologies used by Kafka,…
Python : Basics of File Handling
In this tutorial we will be showing how to work with files stored in the host, such as reading the contents of the file, adding more lines, etc. Listed below are few of the syntax…
Python : Installing Fabric library in CentOS 7
Fabric is a Python library that can be used to execute shell commands remotely over SSH. This is a very helpful module that can be used in Python by System Administrators to execute command in local…
Jenkins : Workshop – CI/CD – Using Git, Maven and Tomcat
In this example we will first use Git CLI to upload source code to GitHub repository. Then we will use Jenkins which will check for any new code uploaded to GitHub repository every 15 minutes,…
Maven: Use Maven to package a “.war” file (Ready to deploy in Tomcat)
Tomcat is an application server that requires the jave (.jsp) and related files to be packaged in to a “.war” file before uploading then to the server. Once the war file is uploaded, the server…
Apache Tomcat : Installation and application deployment basics
Tomcat is a web application server in which you can run Java applications, or in other words used to deploy your Java Servlets and JSPs. In this tutorial we will learn to install Tomcat in…
Linux Performance monitoring using SAR
The tool sar is a very powerful tool that can be used to monitor performance of various Linux components such as CPU, Memory, IO, etc in real-time, and also collect data on an on-going basis…
Linux Performance Monitoring
Listed below are few handy tools to monitor Linux system performance: System Monitoring: This is a graphical tool available in GUI mode, similar to Taskbar iin Windows,where we are have a real time monitoring of…
Adding a CentOS 7 host to AD using realmd
A CentOS host can be added to an AD for suthentication using samba-winbind or realmd packages. In this tutorial we will learn the simple way of using AD aunthentication using realmd packages using the below…