Updating ROOT Certificates in Websphere

locations :
/opt/was51/AppServer/java/jre/bin
/opt/was51/AppServer/java/jre/lib/security/cacerts
just in case make a copy of the file cacerts

copy the new certs to this folder
/opt/was51/AppServer/java/newCerts


Command to view the current Root certificates
/opt/was51/AppServer/java/jre/bin/keytool -list -v -keystore /opt/was51/AppServer/java/jre/lib/security/cacerts -storepass changeit


Command to update cacerts with new certificate
/opt/was51/AppServer/java/jre/bin/keytool -import -file /opt/was51/AppServer/java/newCerts/Domain-ROOT.cer -keystore /opt/was51/AppServer/java/jre/lib/security/cacerts -alias DomainRoot -trustcacerts