Hi all , i am a beginner in java , and i don't manage to do a mysql connection with red5 on a debian etch, please can you give me a clue :) My test : Here is a simple application to test "ApplicationAdapter" , the method : "public boolean appConnect( IConnection conn , Object[] params )" refused the connection if i don't put the true param in the_nc.connect("rtmp://stream.hpifrance.com/myTest",true); so it works but nothing is loggued in my mysql database ... If someone can help me , i desperate about this //source code : Application.java package org.red5.server.webapp.myTest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.red5.server.api.IConnection; import org.red5.server.adapter.ApplicationAdapter; import org.red5.server.api.IScope; import org.red5.server.api.IClient; import org.red5.server.api.stream.ISubscriberStream; import org.red5.server.api.service.IServiceCapableConnection; import org.red5.server.api.scheduling.IScheduledJob; import org.red5.server.api.scheduling.ISchedulingService; import java.util.Map; import java.util.Vector; import java.util.Iterator; import org.red5.io.utils.ObjectMap; import java.sql.*; public class Application extends ApplicationAdapter { static { try { Class.forName("com.mysql.jdbc.Driver"); } catch ( ClassNotFoundException exception ) { log.error( "ClassNotFoundException " + exception.getMessage( ) ); } } public boolean appStart ( ) { log.info( "Red5First.appStart" ); return true; } public void appStop ( ) { log.info( "Red5First.appStop" ); } public boolean appConnect( IConnection conn , Object[] params ) { log.info( "Red5First.appConnect " + conn.getClient().getId() ); boolean accept = (Boolean)params[0]; try{ Connection connexion = DriverManager.getConnection("jdbc:mysql://127.0.0.1/red5","red5","supervisorred5"); Map properties = conn.getConnectParams(); //connection time Long stamp = System.currentTimeMillis( ); // client ip String ip = (String)conn.getRemoteAddress( ); // agent String agent = (String)properties.get( "flashVer" ); // referrer String referrer = (String)properties.get( "swfUrl" ); Statement sttmnt = connexion.createStatement( ); String insert = "INSERT INTO " + "`test`.`red5first_users` " + "(`counter`,`ip`,`referrer`,`flashversion`,`connection`)" + "VALUES(NULL,'" + ip + "','" + referrer + "','" + agent + "','" + stamp + "')"; // execute query sttmnt.executeUpdate( insert ); } catch ( SQLException exception ) { log.error( "SQLException at appConnect: " + exception.getMessage( ) ); } if ( !accept ) rejectClient( "you passed false..." ); return true; } public void appDisconnect( IConnection conn , Object[] params ) { log.info( "Red5First.appDisconnect " + conn.getClient().getId() ); } } //end source code /////////////compilation ok javac -classpath /usr/lib/red5/lib/mysql-connector-java-5.0.6-bin.jar:/usr/lib/red5/red5.jar Application.java no error /////////////jar ok jar -cfv myTest.jar no error but when i connect with rtmp://stream.hpifrance.com/myTest nothing is log in Mysql :( Best regard .