Setting SSL in Tomcat with Java apps

Good afternoon, at least in Spain. Today we are going to learn how to set up SSL security on a Apache Tomcat server running our Java, or similar, app.
First of all, we must create a Keystore file using Java. Go to your JDK folder: cd $JAVA_HOME/bin. Now, create the keystore file: keytool -genkey -alias tomcat -keyalg RSA -keystore. Bare in mind that the password for the keystore must be the same as the key password. This is a tomcat limitation that I didn’t find anywhere. Took me a whole morning to find out. If everything is correct, you should have the .keystore file in the folder you where in (JDK/bin). The next step is to copy this .keystore file wherever you want it to be.
There is a possibility to change the password for the key file using the following command: keystore -keypasswd -alias tomcat -keystore
Now, let’s move on. Open your server.xml file. Inside the conf folder, in $CATALINA_HOME. You have to declare a new Connector:

Our last step to follow is  to configure the web.xml file for our app. Then we will be able to run SSL. It should be inside your webapps/appFolder folder. Insert the following lines after declaration.

 
  securedapp
  /*
 

 
  CONFIDENTIAL
 
If you want to quit SSL, just change CONFIDENTIAL to NONE, so you don’t have to delete all the code written. Hope you found it interesting.

Resources:
Resource 1
Resource 2

Startup script in Ubuntu

Today I learned how to make a script run on sytem startup. This way you can run your script after rebooting automatically. Let’s take a look at the steps:

1. Open /etc/init.d/rc.local file.

2. Add the script you want to run on boot process there. For example:

    sh /usr/share/apache-tomcat-7.0.27/bin/startup.sh
    echo ‘Apache Tomcat Running’

3. Save the file. Your script will run on boot process.