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Nikkei Network

July 2007

FEATURE 1

 

How do you set the time? Is it possible to verify the recorded time?

 

The Secrets of Internet Time

 

Isn’t the time on your personal computer inaccurate?  An inaccurate clock or a fake time can lead to big trouble. There are mechanisms available on the Internet, such as “setting the time” and “checking the time” that were designed to prevent this from happening. Both of them are fairly easy to use. Let’s get an understanding of the basics of the technology, and make full use of time information.

 

Prologue: Internet “time” is surprisingly important

Part 1: Looking for the secrets of network time protocol (NTP)

Part 2: The secrets of time verification services

Bonus Article: The mechanisms for setting the “standard time” that is used in setting clocks

 

Beginners’ Question

 

What is the difference between packets and frames?

 

FEATURE 2

 

Fully understanding the selection criteria

 

A thorough dissection of SPAM countermeasures

 

A large volume of SPAM continues to circulate on the net. SPAM continues to flow, using ever-changing means. A constant stream of new countermeasure technologies is appearing to deal with these. This feature thoroughly dissects these measures. By understanding the mechanisms of the countermeasures, the points for fighting back against SPAM should become clear.

 

Part 1: The increasing ingenuity of SPAM

Part 2: SPAM countermeasures for the recipient

Part 3: SPAM countermeasures for the sender

Bonus Articles:

How to deal with the popular graphic SPAM?

Where should you install appliance products?

 

FEATURE 3

 

Learning Network Infrastructure in Charts

 

Cookies

A mechanism for grasping the conditions of users who are active in shopping on the web

 

Nikkei Network

July 2007

FEATURE 1

 

How do you set the time? Is it possible to verify the recorded time?

 

The Secrets of Internet Time

 

Isn’t the time on your personal computer inaccurate?  An inaccurate clock or a fake time can lead to big trouble. There are mechanisms available on the Internet, such as “setting the time” and “checking the time” that were designed to prevent this from happening. Both of them are fairly easy to use. Let’s get an understanding of the basics of the technology, and make full use of time information.

 

Prologue: Internet “time” is surprisingly important

Part 1: Looking for the secrets of network time protocol (NTP)

Part 2: The secrets of time verification services

Bonus Article: The mechanisms for setting the “standard time” that is used in setting clocks

 

Beginners’ Question

 

What is the difference between packets and frames?

 

FEATURE 2

 

Fully understanding the selection criteria

 

A thorough dissection of SPAM countermeasures

 

A large volume of SPAM continues to circulate on the net. SPAM continues to flow, using ever-changing means. A constant stream of new countermeasure technologies is appearing to deal with these. This feature thoroughly dissects these measures. By understanding the mechanisms of the countermeasures, the points for fighting back against SPAM should become clear.

 

Part 1: The increasing ingenuity of SPAM

Part 2: SPAM countermeasures for the recipient

Part 3: SPAM countermeasures for the sender

Bonus Articles:

How to deal with the popular graphic SPAM?

Where should you install appliance products?

 

FEATURE 3

 

Learning Network Infrastructure in Charts

 

Cookies

A mechanism for grasping the conditions of users who are active in shopping on the web