Tomcat

Create a serlf signed SSL certificate for Tomcat.

mkdir ssl
cd ssl
openssl req -new -out REQ.pem -keyout KEY.pem
openssl req -x509 -in REQ.pem -key KEY.pem -out CERT.pem
openssl req -verify -in REQ.pem
openssl req -verify -in REQ.pem -key KEY.pem
openssl req -text -in REQ.pem

Backup old SSL key just in case something goes wrong

mkdir old_ssl
cp /usr/local/tomcat/.keystore old_ssl/keystore

Stop Tomcat

/etc/init.d/tomcat stop

Delete the Tomcat certificate from the keystore and install new one

sudo ln /usr/local/tomcat/.keystore /root/.keystore
sudo /usr/java/jdk1.6.0/bin/keytool -delete -alias tomcat
sudo /usr/java/jdk1.6.0/bin/keytool -import -v -trustcacerts -alias tomcat -file CERT.pem

Start Tomcat

sudo /etc/init.d/tomcat start