28 พ.ค. 2556

เปลี่ยน Password Policy ของ Windows 2008 R2 Domain Controller

Step 1: Go to Start > Administrative Tools > Group Policy Management.

Step 2: Click the Little Arrow on Forest: your domain > Click the Little Arrow on Domains > Click the Little Arrow on your domain > Default Domain Policy.

Step 3: Press Settings then Right Click Inside the Settings Tab and Press Edit.

Step 4: Click the Little Arrow on Computer Configuration > Click the Little Arrow on Policies > Click the Little Arrow on Windows Settings > Click on Security Settings then Double Click Account Policies.

Step 5: Double Click Password Policy then Double Click Password must meet complexity requirements.

Step 6: Click the Disabled Box then Press Apply > OK

Step 7: Open Start > Run > CMD > OK 

Step 8: In CMD type gpupdate /force when its done updating the policy, you will be able to set a password to anything you want.

ที่มา.;http://www.youtube.com/watch?v=3Wu49Ir3Oa8

15 พ.ค. 2556

Poor network performance on Windows 2008 Server virtual machine


Symptoms

A virtual machine on a Windows 2008 Server may experience these symptoms:
  • Poor network performance
  • Slow network transfers

Resolution

To resolve this issue, ensure that the virtual machine:

To disable TCP Segmentation Offloading in Windows 2008:
  1. Run the command:
  2. 1. netsh int tcp set global chimney=disabled
    2. netsh int tcp set global rss=disabled
    3. netsh int tcp set global netdma=disabled
  3. Reboot the virtual machine.

Note: Using the provided registry value only changes one of many parameters, while the above command updates all the necessary parameters.