10 tut - SHARING TIP AND TUT

When setting up SSL certificate for a website, we mainly use two types of SSL certificate one is x509 mostly used with applications support OpenSSL library and other is Keystore which is used with Java 1.6+ applications.
Apache/Nginx uses x509 pem/crt files which is is very different than a Jetty/Tomcat (Java 1.6+) system that uses keystores and differences start right from generating a Certificate Signing Request (CSR). So, you could either generate separate CSR request...

Ways to kill parent and child processes in one command
On linux, kill a process is simple, but sometimes, when something goes wrong, a process could fork hundreds and thousands child processes, you can either create a script to kill them all, or find some quick ways to kill them all in one command....

Configuring Tomcat To Use SSL
Setting up SSL for Tomcat can be pided into two main tasks: creating a functional keystore, and configuring the Tomcat connectors and applications. Let's tackle them one at a time.
PART I - The Keystore

Many times systems faced low memory issues of Linux systems running a while. The reason is that Linux uses so much memory for disk cache is because the RAM is wasted if it isn’t used. Cache is used to keep data to use frequently by the operating system...