Showing posts with label network. Show all posts
Showing posts with label network. Show all posts

Jul 28, 2010

D-Link DIR-655 Wireless-N Router with SharePort

by Thom Hiatt, Guest Writer

Years ago my father-in-law had his house wired for internet access in each room of the house. Then came wireless routers, and he installed a G-band unit. Three years have passed and the family is tired of having some "dead spots" around the house. Plus, they wanted the benefit of sharing the printer, without having to purchase a wireless printer. Being a nice son-in-law, I offered to pick up a Wireless N router with a USB port so that they could share the family printer.

My FIL was looking for a great price, and wanted to see what Fry's had to offer. So we made our visit and I must say that the management at Fry's sure is doing something better than in years past. I've avoided that dreaded F-word of a store for years simply due to their sales tactics, rude behavior, and ridiculous return policies. But things have changed a bit and they seem to be nicer over there.

While looking at 'N' routers, we told the salesman that we needed to be able to share the printer. He pointed us to the only option in the house, the D-Link DIR-655 Wireless-N Router with SharePort. $90 plus tax.

After installing it at my FIL's house, we set up access on four laptop computers. Then it was time to plug in the printer. That's where the nightmare begins.

The router comes with SharePort software on CD, necessary for each laptop that needs access to the printer... which means that netbooks can't readily use it because they don't have CD-ROM drives.

After installing SharePort on both full-sized laptops, we started to run test prints. This is where it gets downright ridiculous.

On Laptop 'A' we type a note in Notepad and then click print. Going through the dialog boxes, we print, no problem.

Laptop 'B' now wants to print. What? You mean you want to simply be able to click the print icon and watch your beautiful masterpiece come out of the printer? No, you're not going to get off that easily, pal.

Before printing, Laptop 'B' must open the SharePort program, see that Laptop 'A' is currently connected, then right-click on the Laptop 'A' listing, then request PERMISSION to use the DAMN PRINTER, then wait for Laptop 'A' to GRANT PERMISSION. Once this has all happened, only then can I click the print icon on my document and print away, assuming it works.

In fact, it's so unusually difficult that SharePort has it's own web page with 4 tabs full of instructions. At the very bottom of tab 2, it says, "[when you are connected] This means that no other PC on your network can access it. If you have more than one PC connected to your network and want to print from that computer, you must ask for access."

WTF? So in my house, I have to ask my wife for permission to connect to the printer? Or in my office I have to ask my intern for permission?

Dear D-Link, this is just stupid. Why do you and other companies continue to make tasks so incredibly difficult? Is it that much more complex to put a print server in the router, perhaps like the Apple Airport Extreme?

What's most frustrating is that the D-Link packaging clearly promotes that you can share your printer, but fails to tell you that it will be a pain in the ass to do so. It's also frustrating that the Fry's salesman didn't know enough to warn us.

So the $90 D-Link is going back to the store, for a refund. And now my father in law will need to decide if he wants to 1) buy an Aiport Extreme for $180, or 2) buy a cheaper wireless router and upgrade to a wireless all-in-one printer for a total cost of around $150-200.

Bottom line: I really wish employees of brands would actually use their own products. If they did so, D-Link employees would realize how much SharePort sucks, and they would provide a better solution.

I offer a new slogan for SharePort:

"Share a printer or mass storage device! Sure, it's kind of a pain, and embarrassingly old-school technology, but it's the best we were willing to do!"

Mar 13, 2009

How To Setup Bridge Networking for Virtualbox in Windows

I am a big fan of Sun's Virtualbox. I have written about it in the past. I still like it better than VMWare when running it on my local workstation to create test boxes and such on the fly. It is lighter, and simpler than VMWare desktop for the most part. The thing it doesn't do too well is bridged networking.

The bridged networking never bothered me before. I just would use NAT and be done with it. However today I had to do some testing of an antivirus suite I am evaluating and needed to have a machine I could infect with Antivirus 2009. This machine needed to be bridged so it could successfully report back to my test server.

You can however configure Virtualbox for bridged networking, you just have to do some simple fenagling. To configure your Virtual machine for bridged network in Windows do the following:

  • Open Virtualbox, select the VM you need bridged networking on.
  • In the right panel, click on "Network".
  • The settings box will pop up.
  • Look under Host Interfaces. You will not see anything listed there.
  • Click the "Add New Host Interface (Ins)" button.



  • Give the interface a name. I called mine "VirtualBox Host Interface 0". Click Ok.
  • Changed the "Attached to" drop down box to Host Interface. Click Ok.



  • Now click on Start>Control Panel>Network Connections.
  • Click on your NIC, then hold down control and click on your new VirtualBox host interface you just created. Right click and select "Add to Bridge".



  • A new network bridge will be created, and now your VirtualBox will operate in Bridged mode!
I hope that helped you out. If you know of a good write up on how to do this on Ubuntu I would like to know. Hit me up with a link in the comments.

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Dec 21, 2007

Know More About Load Balancing

Load balancing, by definition, is the process of spreading the amount of work that is conducted by a computer system between a number of different computer systems to increase the speed that the work is completed in. There are several different methods in which load balancing can be accomplished by and the technique can use many different types of computer components, including both hardware and software applications. Load balancing is typically completed using a cluster of computer servers that may or may not be located in the same location. Some load balancers provide a mechanism for doing something special in the event that all backend servers are unavailable. This might include forwarding to a backup load balancer, or displaying a message regarding the outage. Load balancing can be useful when dealing with redundant communications links.


There are many different companies that see the benefits of using load balancing and implement the procedure for their companies. Companies that conduct business transactions in large numbers using the internet are prime candidates to use load balancing to ensure that all of their clients and customers will be able to conduct their transactions in a quickly and accurately manner. Companies that need to network a great deal of computers for individual users also typically use load balancing to ensure that all computers will work properly and have the right amount of power to be able to perform the functions that they are intended to perform. It also ensures that the company will still be able to do business if one server becomes corrupted or goes down for an extended period of time.


There are several different methods that are widely used for load balancing. One of the most popular methods of load balancing is Global Server Load Balancing. This technique distributes the incoming tasks to a group of servers in a particular geographic location. This technique is widely used by companies that have a global presence and have a need to satisfy customers or employees in many different geographical locations. Using Global Server Load Balancing ensures that the work load is distributed throughout the entire server system in an easy to manage manner and ensures that all geographical locations are obtaining the correct information from the correct set of servers.


Another load balancing technique that is commonly used is called Persistence Load Balancing. This technique assigns each new client to a different server in a round robin (distributed page requests evenly to one of three Squid cache servers) type of allocation. This client is then assigned to this specific server for the future of their relationship with the business. This ensures that no one server is overloaded with a particular type of client, such as those in a certain geographical area or use a specific type of service and ensures that the clients are distributed evenly through out all of the servers that the business possesses. These server assignments are typically monitored by using the customers IP address as the customer's unique identification code.



By Amy Nutt

About the Author:

Managed IT services can include: Managed Hosting and Infrastructure, Application Services, Disaster Recovery and Professional Services. See the benefits of using load balancing and implement the procedure for your clients.

Article Source: www.articlesbase.com



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