Installing an SSL on Tomcat

With Tomcat there are a number of different ways to install and use a SSL but I will show you how to do this the easy way.

1) Login to your IONOS Control Panel and go to Domains & SSL > Select your Domain > Create and Download .PFX File > Download

2) Save the file and make a note of the password you used when saving.

3) Transfer the file to your server. In this example the file is being saved to /opt/tomcat/myssl/ssl.pfx

4) SSH into your server

5) vi /opt/tomcat/conf/server.xml

<Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol"
               maxThreads="150"
               SSLEnabled="true"
               scheme="https"
               secure="true"
               clientAuth="false"
               sslProtocol="TLS"
               keystoreFile="/opt/tomcat/myssl/ssl.pfx"
               keystorePass="mySSLPassword"
               keystoreType="PKCS12"/>

Make a note of the Connector port, keystoreFile, and keystorePass as your entries may be different. Its possible your Tomcat may also be run as a proxy on a port other than 443 such as 8443.

Next you will need to restart Tomcat

6) cd /opt/tomcat/bin

7) ./shutdown.sh

8) ./startup.sh