This section describes how to install a certificate from a Certificate Authority into Tomcat. Self-signed certificate is already installed in $NFO_HOME/tomcat/conf/.tomcat_keystore, the keystore password is “password” and private key password is the same.
If you want to replace self-signed certificate to a new one from a Certificate Authority, use following steps from http://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html
HTTPS parameters are configured in the tomcat/conf/server.xml configuration file (Connector section). All Connector attributes are described here: https://tomcat.apache.org/tomcat-7.0-doc/config/http.html. If keystore path or password are changed, corresponding Connector attributes should be modified.
In order to obtain a Certificate from the Certificate Authority of your choice you have to create a so called Certificate Signing Request (CSR). That CSR will be used by the Certificate Authority to create a Certificate that will identify your website as "secure". To create a CSR follow these steps:
Delete preinstalled self-signed certificate:
$NFO_HOME/java/jre8/jre/bin/keytool -delete -alias tomcat \-keystore $NFO_HOME/tomcat/conf/.tomcat_keystore
Create a local Certificate:
$NFO_HOME/java/jre8/jre/bin/keytool -keysize 2048 -genkey -alias tomcat \-keyalg RSA -keystore $NFO_HOME/tomcat/conf/.tomcat_keystore
Note: In some cases you will have to enter the domain of your website (i.e. www.domain.org) in the field "first- and lastname" in order to create a working Certificate.
The CSR is then created with:
$NFO_HOME/java/jre8/jre/bin/keytool -certreq -keyalg RSA -alias tomcat \-file certreq.csr -keystore $NFO_HOME/tomcat/conf/.tomcat_keystore
Now you have a file called certreq.csr that you can submit to the Certificate Authority (look at the documentation of the Certificate Authority website on how to do this). In return you get a Certificate.
Now that you have your Certificate you can import it into your local keystore. First of all you have to import a so called Chain Certificate or Root Certificate into your keystore. After that you can proceed with importing your Certificate.
Download a Chain Certificate from the Certificate Authority you obtained the Certificate from.
For Verisign.com commercial certificates go to:
For Verisign.com trial certificates go to:
For Trustcenter.de go to:
For Thawte.com go to:
Import the Chain Certificate into your keystore
$NFO_HOME/java/jre8/jre/bin/keytool -import -alias root \-keystore $NFO_HOME/tomcat/conf/.tomcat_keystore \-trustcacerts -file <filename_of_the_chain_certificate>
And finally import your new Certificate
$NFO_HOME/java/jre8/jre/bin/keytool -import -alias tomcat \-keystore $NFO_HOME/tomcat/conf/.tomcat_keystore \-file <your_certificate_filename>