TCP Segment format:The figure below show the TCP segment format. It show the differentfield within the TCP header.bit 0 bit 16 bit 32------------------------------------------------------------------Source port (16) Destination port (16) ________________________________________________________________Sequence...
Tcp tutorial part 1
TRANSMISSION CONTROL PROTOCOL (TCP):TCP takes large blocks of information from an application andbreaks them into segments. It numbers and sequences eachsegment so that the destinations TCP protocol can put thesegments back into the order the application intended.After these segments are sent, TCP...
Share an Internet Connection With Multiple Computers
Share an Internet Connection With Multiple Computers
Linux offers the ability to act as both firewall and router for multiple computers. You can easily set this up using iptables. Execute the following commands on your Linux box. This example assumes that eth0 is the network interface...
How to "Delete administrator Password" without any software
Boot up with DOS and delete the sam.exe and sam.log files from Windows\system32\config in your hard drive. Now when you boot up in NT the password on your built-in administrator account which will be blank (i.e No password). This solution works only if your hard drive is FAT kind.Method 2Step 1. Put...
Linux Commands
How to search files for specific terms:
grep -r [search term] .
How to add items such as svn, mvn, java, etc. to your PATH and set environment variables for all users:
Edit the /etc/profile file and then run .[space]/etc/profile with
export PATH=$PATH:/usr/java/jdk1.5.0_07/bin
How to set an environment...
Linux Mounted Driver cannot remove directory error message
When running rm -rf [directory name] the following error message occurs:rm: cannot remove directory '[directory name]': File existsIf this occurs when trying to remove a file from a mounted drive, try unmounting the drive and remounting i...
Windows Vista Connect.dll Error Message
Error message
Component GUID:{7071ECA3-663B-4BC1-A1FA-B97F3B917C55}Component file: [C:\Windows\system32\connect.dll]Error: (0x8007277B) .Additional Info:Failed to detect Internet connectivity
Description
Received the following error message when trying to connect to the Internet on a...
Surface Pro Sales Reach 400,000 in Only a Month

Since its launch, the Surface tablet from Microsoft has reached 400,000 sales, which isn't a bad start for a tablet that is definitely on the pricey side with an $899 price tag. What's even more impressive...
New Wireless Solar Keyboard from Logitech
Logitech is a Swiss peripheral device manufacturer that makes PC accessories including keyboards, mice, microphones, game controllers, and webcams. They also produce home and computer speakers,...
Microsoft's Summer Xbox Deal Is Back!

Microsoft had a nifty back to school special last year that awarded customers a brand new Xbox 360 with the purchase of any new Windows PC. Well, it seems as though the promotion was a success, enough...
Just what is Dropbox?
For those of you who don't know, Dropbox is a simple online virtual storage utility that allows you to make your files accessible from almost anywhere. Designed for those who are tired of e-mailing files...
How much does it cost to run a computer?

Here's something that has always hung around in my mind, but I never got around to looking up the answer. How much will running PCs add to your power bill?Anandtech posted an article where they calculated...
Windows 8 Pro Discount Officially Ended

Well, it's official, you can no longer purchase an upgrade to Windows 8 Pro for the discounted price of $39.99. As of February 1, Microsoft has quintupled the price to $199.99. Just upgrading to...
Apple Mac mini/2.5GHz Core i5 (Late 2012) specs
MANUFACTURER’S DESCRIPTION ...
Top 5 all-in-one PCs
Big-screen all-in-one PCs are increasingly dual-purpose devices: You can use them as computers for playing PC games, using productivity apps, surfing the web and more. But thanks to HDMI inputs, you...