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70-620 15% off
70-640 15% off
70-642 15% off
70-643 20% off
70-646 25% off
70-647 25% off

Offer valid worldwide
Offer Good until December 31, 2009
Customers must register, schedule and take their discounted exams by
December 31, 2009.

Detail information is here
http://www.prometric.com/microsoft/careeroffer.htm

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PHP正则表达式介绍：

1.中括号

• [0-9]匹配0-9
• [a-z]匹配a-z小写字母
• [A-Z]匹配A-Z大写字母
• [a-zA-Z]匹配所有大小写字母
• 可以使用ascii来制定更多

2.量词

• p+匹配至少一个含p的字符串
• p*陪陪任何包含0个或多个p的字符串
• p?匹配任何包含0个或一个p的字符串
• p{2}匹配包含2个p的序列的字符串
• p{2,3}匹配任何包含2个或3个的字符串
• p$匹配任何以p结尾的字符串
• ^p匹配任何以p开头的字符串
• [^a-zA-Z]匹配任何不包含a-zA-Z的字符串
• p.p匹配任何包含p、接下来是任何字符、再接下来有又是p的字符串
• ^.{2}$匹配任何值包含2个字符的字符串
• (.*)匹配任何被包围的字符串
• p(hp)*匹配任何一个包含p,后面是多个或0个hp的字符串
  阅读全文 »

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Got an error in even log ton DC 2003

Google the problem and get a newsgroup post: “One of my staff members called Microsoft and they said that this is a bug that they are working on. You can turn the error off by going to the “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SrmSvc\Settings” registry key and setting “DisableSearchDfs=1″”.

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When you try to install Powershell 2.0, you are prompted to uninstall other versions of Powershells before going ahead with the installation. But neither does powershell appear in Add/Remove programs nor is there an uninstall shortcut in the programs menu.

To uninstall powershell 1.0 run add/remove programs (appwiz.cpl from Win+R) and click the “show updates” checkbox. Powershell will now be shown. It can be removed by clicking on remove.

The entry for PowerShell is displayed as “Hotfix for Windows Server 2003 (KB926139)” in Windows 2003 Server.

Enjoyyy!!!

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This problem is caused by the firmware not loading correctly. Follow the steps below to fix this:
Note: This process must be done on a computer plugged into the router directly.

Preparation

1. You first need to establish a connection to the Internet and download firmware for your router.
   To get online, bypass the router and plug directly into your Cable or DSL modem.
2. Download the latest firmware upgrade for your router from http://www.linksys.com/download.
   Be sure to select the WRT54G and the correct version number that matches your router. Look on the bottom of the router to verify the model and version (no version number means version 1.0).
3. Click on Downloads for this Product. When the Downloads page loads, click on the Firmware button.
4. Click Download to download the firmware.
5. Before performing the upgrade, we recommend you assign your computer a static IP address like 192.168.1.2.

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1. Identify the Secondary Name Server
2. Install DNS on the Secondary Name Server
3. Configure the Forward Lookup Zone
4. Configure the Reverse Lookup Zone
5. Troubleshoot

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如果你给你的XP设置了密码，那么每次在进入XP桌面之前，都会出现一个用户登录界面，要求输入密码，这样加大了系统的安全性，也为多人共用一台电脑提供了方便，但如果只有你一个人使用，这样每次要输入密码，的确有点不大方便。要取消这个登录步骤，有两种方法：

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By default Microsoft Windows system automatically creates hidden “administrative shares” for its logical drives C:, D: … with share names C$, D$ … It also creates the admin$ hidden share for to the \winnt or windows folder. These shares are designed for remote access support by domain administrators. You can manually delete these shares by using our solution 1. If you delete these admin shares, they will be recreated when you reboot. To disable permanently so they will not be recreated on the next reboot, use the following procedure solution 2.

Here is a list of the default administrative shares, accessible only to administrator:

• C$: To access to a partition or root directory. Other partitions are also accessible via their letter, followed by the character “$”.
• ADMIN$: To access to% systemroot%, to manage a machine on the network.
• IPC$: Allowing the communication network between processes.
• PRINT $: Remote access to printers.

To view and manage the administrative shares of the computer, simply go to Control Panel / Administrative Tools / Computer Management / Shared Folders / Shares. Another alternative is to right click on the My Computer icon on desktop and select Manage.

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