Have you ever experienced that the site2site VPN connection performance is poor despite the Internet connection between the two sides is good and both equipment works properly? I met this situation once. And it turned out to be caused by the settings of MTU (Maximum Transfer Unit). The default MTU of Ethernet is 1,500 Bytes. … Continue reading MTU May Impact VPN Connection Performance
Category: Microsoft
Batch Script: Windows AD Migration
I worked on a Windows domain migration project several months ago. The P company acquired the B company, and request to migrate all former B company’s employees’ desktops and laptops to P company’s AD domain. Firstly, I created all new AD accounts for B company’s employees in P company’s AD. Then I wrote the following … Continue reading Batch Script: Windows AD Migration
AD User Get Locked Out?
As a Windows domain administrator, unlocking locked user account is part of the routine work. Besides user continually type in the wrong passwords, the below three senarios also can lead to the issue. First, some users tend to keep their password remembered in applications like Internet browser. As this saves their time to type password … Continue reading AD User Get Locked Out?
Offline Address Book (oab) Settings
One of the common issues that I have seen for Outlook users is that the offline address book in their local machine is out of date. This may cause the user can not find a new contact in the address book, or send mail to the outdated email address. The simplest way to solve the … Continue reading Offline Address Book (oab) Settings
Mail for Exchange on E72
Many smartphones naturely support Exchange AtiveSync, it includes iPhone, Symbian, Android and Windows Mobile. In my office, we enabled the ActiveSync on Exchange 2010, and the users who have smartphone can send/receive mails in anywhere at anytime. My phone is Nokia E72 (S60 V3). The setup process is pretty straightforward: 1) Go to ‘Menu – … Continue reading Mail for Exchange on E72
Jackie Chen's IT Workshop 