16 years ago
Saturday, September 6, 2008
How the "INTERNET" Works
This video is the best in providing information about how actually the packets are sent over internet and that too with animation. What else can one ask for!!
How to find the IP address of the sender in Gmail Or Yahoo! mail
When you receive an email, you receive more than just the message. The email comes with headers that carry important information that can tell where the email was sent from and possibly who sent it. For that, you would need to find the IP address of the sender. The tutorial below can help you find the IP address of the sender. Note that this will not work if the sender uses anonymous proxy servers.
First of all, the IP address is generally found in the headers enclosed beween square brackets, for instance, [129.130.1.1
Finding IP address in Gmail
1. Log into your Gmail account with your username and password.
2. Open the mail.
3. To display the email headers,
* Click on the inverted triangle beside Reply. Select Show Orginal.
4. Look for Received: from followed by the IP address between square brackets [ ].
Received: from [69.138.30.1] by web31804.mail.mud.yahoo.com
6. If you find more than one Received: from patterns, select the last one.
Finding IP address in Yahoomail
1. Log into your Yahoo! mail with your username and password.
2. Click on Inbox or whichever folder you have stored your mail.
3. Open the mail.
4. If you do not see the headers above the mail message, your headers are not displayed. To display the headers,
* Click on Options on the top-right corner
* In the Mail Options page, click on General Preferences
* Scroll down to Messages where you have the Headers option
* Make sure that Show all headers on incoming messages is selected
* Click on the Save button
* Go back to the mails and open that mail
5. You should see similar headers like this:
Yahoo! headers : Arul John
6. Look for Received: from followed by the IP address between square brackets [ ]. Here, it is 202.65.138.109.
That is be the IP address of the sender.
If there are many instances of Received: from with the IP address, select the IP address in the last pattern.
First of all, the IP address is generally found in the headers enclosed beween square brackets, for instance, [129.130.1.1
Finding IP address in Gmail
1. Log into your Gmail account with your username and password.
2. Open the mail.
3. To display the email headers,
* Click on the inverted triangle beside Reply. Select Show Orginal.
4. Look for Received: from followed by the IP address between square brackets [ ].
Received: from [69.138.30.1] by web31804.mail.mud.yahoo.com
6. If you find more than one Received: from patterns, select the last one.
Finding IP address in Yahoomail
1. Log into your Yahoo! mail with your username and password.
2. Click on Inbox or whichever folder you have stored your mail.
3. Open the mail.
4. If you do not see the headers above the mail message, your headers are not displayed. To display the headers,
* Click on Options on the top-right corner
* In the Mail Options page, click on General Preferences
* Scroll down to Messages where you have the Headers option
* Make sure that Show all headers on incoming messages is selected
* Click on the Save button
* Go back to the mails and open that mail
5. You should see similar headers like this:
Yahoo! headers : Arul John
6. Look for Received: from followed by the IP address between square brackets [ ]. Here, it is 202.65.138.109.
That is be the IP address of the sender.
If there are many instances of Received: from with the IP address, select the IP address in the last pattern.
Wednesday, September 3, 2008
A Little About Linux
It all dates back to some 30 years ago...the dawn of a new era!!
By the initial 90s, Linus Torvalds, a young man studying computer science at the university of Helsinki, thought it would be a good idea to have some sort of freely available academic version of UNIX, and promptly started to code.
Current Situation
On the server side, Linux is well-known as a stable and reliable platform, providing database and trading services for companies like Amazon, the well-known online bookshop, US Post Office, the German army and many others. Especially Internet providers and Internet service providers have grown fond of Linux as firewall, proxy- and web server, and you will find a Linux box within reach of every UNIX system administrator who appreciates a comfortable management station. Clusters of Linux machines are used in the creation of movies such as "Titanic", "Shrek" and others.
By the initial 90s, Linus Torvalds, a young man studying computer science at the university of Helsinki, thought it would be a good idea to have some sort of freely available academic version of UNIX, and promptly started to code.
Current Situation
On the server side, Linux is well-known as a stable and reliable platform, providing database and trading services for companies like Amazon, the well-known online bookshop, US Post Office, the German army and many others. Especially Internet providers and Internet service providers have grown fond of Linux as firewall, proxy- and web server, and you will find a Linux box within reach of every UNIX system administrator who appreciates a comfortable management station. Clusters of Linux machines are used in the creation of movies such as "Titanic", "Shrek" and others.
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