Tcp tutorial part 2

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...

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...

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...

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...