DEAR VISITOR , YOU ARE WATCHING : How to create a simple security realm that uses a file in a safe place in the app server to store the credentials | File realm & role based security with Glassfish 3.1 .
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https://j2ee-tutorials-videos.blogspot.com/2012/10/how-to-create-simple-security-realm.html
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http://www.youtube.com/watch?v=1lrqjIdGkl4endofvid [starttext]This is a Video Tutorial explains File realm & role based security with Glassfish 3.1 [endtext]