How to block USB access in MAC????

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For OS X the guide describes disabling USB and Firewire storage:

1. Log on with an administrator account.
2. Browse to ‘/System/Library/Extensions’ folder on the system disk.
3. Trash both IOUSBMassStorageClass.kext and IOFireWireSerialBusProtocolTransport.kext which are found in this directory.
4. Empty the trash.
5. Reboot the machine.

Disabling USB storage on a Windows platform is only a little more complicated:

What If You Forget Mysql Root !!!!!

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If you have set a root password, but forgot what it was, you can set a new password with the following procedure:

1. Take down the mysqld server by sending a kill (not kill-9) to the mysqld. The pid is stored in a `.pid’ file, which is normally in the MySQL database directory: shell> kill `cat /mysql-data-directory/hostname.pid` You must be either the root user or the same user mysqld runs as to do this.

2. Restart mysqld with the –skip-grant-tables option.

3. Set a new password with the mysqladmin password command: shell> mysqladmin -u root password ‘mynewpassword’

4. Now you can either stop mysqld and restart it normally, or just load the privilege tables with: shell> mysqladmin -h hostname flush-privileges

5. After this, you should be able to connect using the new password. Alternatively, you can set the new password using the mysql client:

(1. Take down and restart mysqld with the –skip-grant-tables option as described above.

2. Connect to the mysqld server with: shell> mysql -u root mysql

3. Issue the following commands in the mysql client: mysql> UPDATE user SET Password=PASSWORD(‘mynewpassword’) WHERE User=’root’; mysql> FLUSH PRIVILEGES;

4. After this, you should be able to connect using the new password.

5. You can now stop mysqld and restart it normally.)

How to block USB access in windows????

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Disabling USB storage on a Windows platform is only a little more complicated:

1. From Explorers folder options ensure that hidden files and folders are displayed, file extensions are not hidden and simple file sharing is disabled.
2. Open up the properties for %systemroot%\Inf\Usbstor.inf (%systemroot% would normally be ‘C:\Windows’).
3. Select the security tab and make sure that all options for all users are set to deny. This must include administrators and SYSTEM.
4. Repeat the above for %systemroot%\Inf\Usbstor.pnf
5. If USB storage devices have been used on this machine previously then open up the registry editor otherwise ignore steps 6 and 7.
6. Browse to the registry location ‘HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor’.
7. Open up the registry key ‘Start’ and change the data value to ‘4′. Close the registry editor.

That’s it! If simple file sharing was enabled previously then don’t forget to re-enable it.