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       Steps for making a Java Key Store[JKS] and adding certificates.     In this process main this you need to remember that the alias name . Because in some application using alias name for binding with domain certificate. a.       Command for normal domain certificate keytool -genkeypair -keyalg RSA -keysize 2048 -alias mydomain -keystore mydomain.jks b.       Command for wildcard domain certificate       keytool -genkeypair -keyalg RSA -keysize 2048 -alias mydomain   -keystore mydomain.jks -ext "san=dns:test1.mydomain.com,dns:test2.mydomain.com,ip:192.168.1.1" When executing above both command you will get some questions, in that, make sure you are giving your domain name like www.mydomain.com and in the case of wildcard *.mydomain.com as your first and last name. c.       Generation of certificate request file with normal KeyStore...