Suppose you have a piggy bank containing a lot of coins and you want to count them. You store your coins in a dictionary. Once you finish adding them in the dictionary, you want to know how much you have of each denomination. How do you do it? To see this example in real life … Read more
You may be asking yourself…why do I need a laser printer? It’s going to be very expensive. I usually buy an inkjet printer. I see laser printers at the office. They are big and bulky. I just need something to print occasionally. It’s not like I’m going to be printing everyday. Sure, they are all … Read more
If your Internet Service Provider (ISP) is Time Warner Cable (TWC), you have the option to either lease the cable modem or buy your own. If you buy your own modem, you can save $5.99 per month in monthly fees. However, you need to buy a modem that is approved by TWC. There are many … Read more
When you are having a problem sending a mail message, the first thing you want to do is test the SMTP (Simple Mail Transfer Protocol) connectivity. By default, SMTP listens on port 25. By using telnet, you can connect to port 25 on the mail server and test whether or not you can send a message. This step is done on your own workstation. If you are having a problem sending mail from a web form, run this step from the server that is storing the web form.
The Open Systems Interconnection model (OSI model) by developed by the International Organization for Standardization (ISO) in 1984. OSI reference model is a way of sub-diving network communication and grouping them into logical layers. On each layer, an instance provides the services the instances to the layer above it and requests services to the layer below it.
Are you still using Secure Socket Layer (SSL) version 2 on your web server? If so, you need to read this article. It can save your life. Okay, maybe not that dramatic but it will show you how to disable SSLv2. Why? There are vulnerabilities in this version. If you don’t disable it, your web server might get compromised. This vulnerability exists whether you are running Apache or IIS. The steps to disable it are fairly trivial. So go ahead and tr
If you do Microsoft SQL Server Administration, you know how easy it is to back up your databases using the Enterprise Manager. Using the GUI comes with a price though. You sacrifice the ability to script what you are doing to other servers. What if you have other servers you want to backup all your SQL Server databases? How would you do it in the most effective way?
If you use Microsoft Outlook 2003, you may be wondering how to back up your email. This situation can come up if you are getting a new computer and you want to move your files to your new computer. This situation also applies if you want to archive your email for safe keeping. If you … Read more