Pluggable Authentication Modules ( PAM )In the linux machines we can login in multiple ways - CLI Way - SSH keys, Password based Web UI Way - Cockpit tool Desktop Way - GDM All of these programs depend on PAM (Pluggable Authentication Modules). PAM is a central, pluggable framework: the ap...Aug 18, 2025·7 min read
TomcatWhat is tomcat and why do we need tomcat? Tomcat is an application server where we can deploy our war( web archive ) file, with maven we can generate war, jar, and ear but Tomcat supports war files only, we can run jar with the help of, java -jar jar...Jan 23, 2025·4 min read
Maven Build ToolIn this blog, we will see what a maven is and why we need maven Let’s say we have got a requirement to build an application ., as per requirement we finished the coding part. For the application to run, we need application servers like tomcat , JBoss...Jan 21, 2025·5 min read
ShellScript - 1What is a Shell? Shell is a program that takes the commands whatever the user is typing and it will give to the OS to execute. It acts as an interface between the user and the OS. In most of the Linux systems bash is the default shell., Linux support...Jan 19, 2025·6 min read
CronTabLet’s say we need to run a shell script exactly at 8:00 PM every day., shell script is a file that contains a series of commands. Rather than keeping an alarm at 8:00 a.m. every day, logging into the server, and saying hello.sh ., which is difficult,...Jan 15, 2025·5 min read
EC2 InstanceAWS Offers various services and each service has its use cases. EC2 — Compute Service EBS — Storage Service VPC — Network Service CloudFront — CDN Service EC2 ( Elastic Compute Cloud ) : It’s a Virtual Machine in AWS Cloud., It provides scalable comp...Jan 12, 2025·4 min read
Infrastructure as CodeFirst of all lets see the Application Delivery process with Traditional Infrastructure - Suppose a company wants to develop an application and business people comes with the requirement. Business Analyst — Analyze the requirements of the application,...Jan 11, 2025·3 min read
