I'm trying to setup SSL in my local Tomcat 6 installation. For this, I followed the official How-To doing the following: $JAVA_HOME/bin/keytool -genkey -v -keyalg RSA -alias tomcat -keypass changeit -storepass changeit $JAVA_HOME/bin/keytool -export -alias tomcat -storepass changeit -file /root/server.crt Then changing the $CATALINA_BASE/conf/server.xml, in-commenting this: <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" keystoreFile="/root/.keystore" keystorePass="changeit" /> After starting Tomcat, I get this Exception: INFO: Initializing Coyote HTTP/1.1 on http-8080 30.06.2011 10:15:24 org.apache.tomcat.util.net.jsse.JSSESocketFactory getStore SCHWERWIEGEND: Failed to load keystore type JKS with path /root/.keystore due to Invalid keystore format java.io.IOException: Invalid keystore format at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:633) at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:38) at java.security.KeyStore.load(KeyStore.java:1185) When I look into the keystore with keytool -list I get root@host:~# $JAVA_HOME/bin/keytool -list Enter key store password: changeit Key store type: gkr Key store provider: GNU-CRYPTO Key store contains 1 entry(ies) Alias name: tomcat Creation timestamp: Donnerstag, 30. Juni 2011 - 10:13:40 MESZ Entry type: key-entry Certificate fingerprint (MD5): 6A:B9:...C:89:1C Obviously, the keystore types are different. How can I change the type and will this fix my problem? Thank you!