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Exam Tip A Windows 2000 server that has been updated with the L2TP/IPSec update cannot become a Routing and Remote Access VPN server. The update is only meant for a client.

A Windows Server 2003 group policy locks out a user account when the user violates the policy, for example, if the user exceeds the limit that a Group Policy allows for bad logon attempts. When a user account is locked out, Windows Server 2003 displays an error message. For further information on using Group Policy, see 13, Admin istering Security with Group Policy.

Windows XP and the L2TP/IPSec update Windows 2000 and the L2TP/IPSec update Windows NT 4.0 and the L2TP/IPSec VPN client Windows 98 and the L2TP/IPSec VPN client

To unlock a user s account 1. Click Start, point to Administrative Tools, and then click Active Directory Users And Computers. 2. Expand the appropriate domain, and then click the appropriate OU. 3. In the details pane, select the locked user account that you want to unlock. Click Action. 4. On the Action menu, click Properties. 5. In the Properties dialog box, click the Account tab, where the Account Is Locked Out check box is selected. Clear the check box and click OK.

*/ public interface BlackjackGameLocalBusiness { //--------------------------------------------------------------------------|| // Constants ---------------------------------------------------------------|| //--------------------------------------------------------------------------|| /** * Name to which we'll bind in JNDI */ String JNDI_NAME = "PokerGameLocal"; //--------------------------------------------------------------------------|| // Contracts ---------------------------------------------------------------|| //--------------------------------------------------------------------------|| /** * Places a single bet, returning if the bet won or lost. If the result * is a win, the amount specified will be transferred from the Blackjack Service * account to {@link User#getAccount()}, else it will be deducted from the user account * and placed into the Blackjack Service account. * * @return Whether the bet won or lost * @param userId The ID of the user placing the bet * @param amount The amount of the bet * @throws IllegalArgumentException If either the user of the amount is not specified or * the amount is a negative number. * @throws InsufficientBalanceException If the user does not have enough in his/her account * to cover the bet */ boolean bet(long userId, BigDecimal amount) throws IllegalArgumentException, InsufficientBalanceException; }

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7-11

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See Also For more information about the L2TP/IPSec VPN client, see Microsoft L2TP/ IPSec VPN Client on the Windows 2000 page of the Microsoft Web site at http: //www.microsoft.com/windows2000/server/evaluation/news/bulletins/l2tpclient.asp.

package org.jboss.ejb3.examples.ch17.transactions.api; import javax.ejb.ApplicationException; /** * Exception thrown when attempting to invoke an operation that requires * more funds than are currently available * * @author <a href="mailto:andrew.rubinger@jboss.org">ALR</a> * @version $Revision: $ */ @ApplicationException(rollback = true) public class InsufficientBalanceException extends Exception {

If a user s password expires before he or she can change it, or if a user forgets his or her password, you need to reset the password. You do not need to know the old password to reset a password. After the password has been set for a user account, either by the administrator or by the user, the password is not visible to any user, including the administrator. This improves security by preventing users, including the administrator, from learning another user s password.

To reset a user password 1. Click Start, point to Administrative Tools, and then click Active Directory Users And Computers. 2. Expand the appropriate domain, and then click the appropriate OU. 3. In the details pane, select the user account for which you want to reset a password. Click Action. 4. On the Action menu, click Reset Password. 5. In the Reset Password dialog box, shown in Figure 7-14, type a new password for the user in the New Password box. Confirm the password in the Confirm Password box. Select User Must Change Password At Next Logon to force the user to change his or her password the next time he or she logs on. Click OK.

For information about the L2TP/IPSec update for Windows XP and Windows 2000, see Microsoft Knowledge Base Article 818043 on the support page of the Microsoft Web site at http://support.microsoft.com/default.aspx scid=kb;en-us;818043.

Note If a user logs on through the Internet only, do not select the User Must Change Password At Next Logon option.

//--------------------------------------------------------------------------|| // Class Members -----------------------------------------------------------|| //--------------------------------------------------------------------------|| /** * serialVersionUID */ private static final long serialVersionUID = 1L; //--------------------------------------------------------------------------|| // Constructor -------------------------------------------------------------|| //--------------------------------------------------------------------------|| /** * Creates a new {@link InsufficientBalanceException} with the specified message */ public InsufficientBalanceException(final String message) { super(message); } }