Outlook PST: Do you know maximum size?


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Is a Google Talk Contact Invisible?

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Is a Google Talk Contact Invisible? Sometimes error messages can reveal more than they were supposed to. Rahul Bansal writes about a simple trick that helps you find out if one of your Google Talk contacts is offline or uses the invisible mode. The trick takes advantage of Google's off the record feature which lets you chat with your contacts without saving the conversations in Gmail. "Chats that have been taken off the record aren't stored in your Gmail chat history, or in the Gmail chat history of your contact. You and the person you're talking to can both see when a chat is taken off the record, and you'll be notified if off the record mode is disabled. Your off the record settings will apply whenever you chat with this person, until one of you makes a change." Let's say you want to know if your co-worker Michael is really offline. If you start a chat when he is online and select "go off the record", none of your messages will be saved in Mi
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IP Addresses

The Internet Client Servers IP Addresses To keep all of these machines straight, each machine on the Internet is assigned a unique address called an IP address. IP stands for Internet protocol, and these addresses are 32-bit numbers, normally expressed as four "octets" in a "dotted decimal number." A typical IP address looks like this: 216.27.61.137 The four numbers in an IP address are called octets because they can have values between 0 and 255, which is 28 possibilities per octet. Every machine on the Internet has a unique IP address. A server has a static IP address that does not change very often. A home machine that is dialing up through a modem often has an IP address that is assigned by the ISP when the machine dials in. That IP address is unique for that session -- it may be different the next time the machine dials in. This way, an ISP only needs one IP address for each modem it supports, rather than for each customer. If you are working on a Windows machi
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How Web Works

Inside This Article 1. Introduction to How Web Servers Work 2.The Basic Process 3.Behind the Scenes 4.The Internet 5.Clients and Servers 6.IP Addresses 7.Domain Names 8.Name Servers 9.Ports 10.Protocols 11.Putting It All Together 12.Extras: Security 13.Extras: Dynamic Pages 14.Lots More Information 15.See all Internet articles Basic Process Your browser formed a connection to a Web server, requested a page and received it. Behind the Scenes If you want to get into a bit more detail on the process of getting a Web page onto your computer screen, here are the basic steps that occurred behind the scenes: • The browser broke the URL into three parts: 1. The protocol ("http") 2. The server name ("www.howstuffworks.com") 3. The file name ("web-server.htm") • The browser communicated with a name server to translate the server name "www.howstuffworks.com" into an IP Address, which it uses to connect to the server machine. • The browser then formed a conn
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