Wednesday, 26 November 2008

Using E-mail at Risk

Electronic mail, often abbreviated to e-mail, email or originally eMail, is a store-and-forward method of writing, sending, receiving and saving messages over electronic communication systems. Email applies to the Internet e-mail system based on the Simple Mail Transfer Protocol, to network systems based on other protocols and to various mainframe, minicomputer, or internet by a particular systems vendor, or on the same protocols used on public networks.

Email Security Consist of 4 Major Risks which are Email Spoofing, Spreading Malwares, Email Bombing and Email Spamming.

Email Spoofing
Email spoofing is a kind of forgery. Mails appear to be sent from a known sender but they are actually not so. Spoofing involves forging the email headers, by altering the header information.

Spreading Malware
Malware is a form of computer code that is aimed at Internet users and results in unsolicited outcomes. Malicious codes such as Trojans, Virus and Worms spread fast via emails.

Email Bombing
It refers to transferring a huge amount of emails to victim, ensuing the victim's email account crash. An easy way of attaining this would be to subscribe the victim's email address to a huge number of mailing lists.

Email Spamming
It uses electronic communications medium to transmit unwanted messages to someone in bulk. The most common form of Spam is transmitted in the form of email as a form of the commercial advertising.

Using E-mail at Risk

Electronic mail, often abbreviated to e-mail, email or originally eMail, is a store-and-forward method of writing, sending, receiving and saving messages over electronic communication systems. Email applies to the Internet e-mail system based on the Simple Mail Transfer Protocol, to network systems based on other protocols and to various mainframe, minicomputer, or internet by a particular systems vendor, or on the same protocols used on public networks.

Email Security Consist of 4 Major Risks which are Email Spoofing, Spreading Malwares, Email Bombing and Email Spamming.

Email Spoofing
Email spoofing is a kind of forgery. Mails appear to be sent from a known sender but they are actually not so. Spoofing involves forging the email headers, by altering the header information.

Spreading Malware
Malware is a form of computer code that is aimed at Internet users and results in unsolicited outcomes. Malicious codes such as Trojans, Virus and Worms spread fast via emails.

Email Bombing
It refers to transferring a huge amount of emails to victim, ensuing the victim's email account crash. An easy way of attaining this would be to subscribe the victim's email address to a huge number of mailing lists.

Email Spamming
It uses electronic communications medium to transmit unwanted messages to someone in bulk. The most common form of Spam is transmitted in the form of email as a form of the commercial advertising.

Using E-mail at Risk

Electronic mail, often abbreviated to e-mail, email or originally eMail, is a store-and-forward method of writing, sending, receiving and saving messages over electronic communication systems. Email applies to the Internet e-mail system based on the Simple Mail Transfer Protocol, to network systems based on other protocols and to various mainframe, minicomputer, or internet by a particular systems vendor, or on the same protocols used on public networks.

Email Security Consist of 4 Major Risks which are Email Spoofing, Spreading Malwares, Email Bombing and Email Spamming.

Email Spoofing
Email spoofing is a kind of forgery. Mails appear to be sent from a known sender but they are actually not so. Spoofing involves forging the email headers, by altering the header information.

Spreading Malware
Malware is a form of computer code that is aimed at Internet users and results in unsolicited outcomes. Malicious codes such as Trojans, Virus and Worms spread fast via emails.

Email Bombing
It refers to transferring a huge amount of emails to victim, ensuing the victim's email account crash. An easy way of attaining this would be to subscribe the victim's email address to a huge number of mailing lists.

Email Spamming
It uses electronic communications medium to transmit unwanted messages to someone in bulk. The most common form of Spam is transmitted in the form of email as a form of the commercial advertising.

Lenovo Thinkpad X300 is an ultraportable masterpiece

Advantages: Lightweight; built-in DVD burner; dual cursor controllers; host of advanced features.

Useful feature are dedicated switches to turn on the notebook’s wireless LAN and Bluetooth connectivity.

It also has the usual Thinkpad features, including the blue backup button (Vantage) to restore the OS and applications in a jiffy, as well as the light switch (now in a brighter white LED) to comfortably see the keyboard when typing in the dark.

Additionally, there is a dedicated volume control button on top as well as keys to control the media player together with the function (Fn) key.

On the productivity side, the X300 performed as expected — the machine is able to run all the regular productivity apps, surf the Web, play DVDs and MP3s, as well as run photo-editing software on average performance.

When it comes to battery life, it did not disappoint either as we managed to squeeze out more than three hours on a single charge.

Additionally, the DVD burner powers off when not in use to conserve battery life.


Disadvantages: Pricey; no memory card reader, default OS is Windows Vista (currently known as the worst OS in the world) and it is hard to recustomize for other operating system such as Windows XP or Linux unless you run it using on VMware. As with most products, however, the X300 has its fair share of drawbacks.

For starters, the X300 does not come with a built-in Flash memory card reader, which is really a shame as it is one of the must-have features in today’s laptops.

Then, there is the RM9,588 price tag, which clearly means it is targeted at the high-end market.


Conclusion

Ultraportable notebooks usually sacrifice a lot especially for multiple externals ports to keep their slimness and stay lightweight, but the X300 is really in a class of its own. It is very useful for technical troubleshooting guy. It is not meant for multimedia purposes. For photo editing, it is still cannot compete with Mac Book Pro.

Still, if you are willing to look past some of the drawbacks, the X300 is an ideal choice for road warriors who are looking for the ultimate thin and light notebook without sacrificing much of the features they need to be productive. 


THINKPAD X300 Default Specification

Ultraportable notebook

Processor: Intel Core 2 Duo processor SL7100 (1.2GHz, 4MB, 800MHz FSB)
Memory: 2GB DDR2 RAM
Graphics: Intel Graphics Media Accelerator X3100
Display: 13.3in with LED backlight (1,440 x 900pixels)
Storage: 64GB Solid State SATA Drive
Connectivity: WiFi, 10/100 Ethernet, 56k modem, Bluetooth
I/O ports: Three USB 2.0 ports, legacy ports.
Operating System: Microsoft Windows Vista Business
Battery: Lithium-polymer
Other features: Ultrathin DVD burner, built-in webcam, biometric fingerprint reader, TrackPoint and TrackPad combo
Dimensions (w x d x h): 318 x 231 x 23.4mm
Weight: 1.42kg

Lenovo Thinkpad X300 is an ultraportable masterpiece

Advantages: Lightweight; built-in DVD burner; dual cursor controllers; host of advanced features.

Useful feature are dedicated switches to turn on the notebook’s wireless LAN and Bluetooth connectivity.

It also has the usual Thinkpad features, including the blue backup button (Vantage) to restore the OS and applications in a jiffy, as well as the light switch (now in a brighter white LED) to comfortably see the keyboard when typing in the dark.

Additionally, there is a dedicated volume control button on top as well as keys to control the media player together with the function (Fn) key.

On the productivity side, the X300 performed as expected — the machine is able to run all the regular productivity apps, surf the Web, play DVDs and MP3s, as well as run photo-editing software on average performance.

When it comes to battery life, it did not disappoint either as we managed to squeeze out more than three hours on a single charge.

Additionally, the DVD burner powers off when not in use to conserve battery life.


Disadvantages: Pricey; no memory card reader, default OS is Windows Vista (currently known as the worst OS in the world) and it is hard to recustomize for other operating system such as Windows XP or Linux unless you run it using on VMware. As with most products, however, the X300 has its fair share of drawbacks.

For starters, the X300 does not come with a built-in Flash memory card reader, which is really a shame as it is one of the must-have features in today’s laptops.

Then, there is the RM9,588 price tag, which clearly means it is targeted at the high-end market.


Conclusion

Ultraportable notebooks usually sacrifice a lot especially for multiple externals ports to keep their slimness and stay lightweight, but the X300 is really in a class of its own. It is very useful for technical troubleshooting guy. It is not meant for multimedia purposes. For photo editing, it is still cannot compete with Mac Book Pro.

Still, if you are willing to look past some of the drawbacks, the X300 is an ideal choice for road warriors who are looking for the ultimate thin and light notebook without sacrificing much of the features they need to be productive. 


THINKPAD X300 Default Specification

Ultraportable notebook

Processor: Intel Core 2 Duo processor SL7100 (1.2GHz, 4MB, 800MHz FSB)
Memory: 2GB DDR2 RAM
Graphics: Intel Graphics Media Accelerator X3100
Display: 13.3in with LED backlight (1,440 x 900pixels)
Storage: 64GB Solid State SATA Drive
Connectivity: WiFi, 10/100 Ethernet, 56k modem, Bluetooth
I/O ports: Three USB 2.0 ports, legacy ports.
Operating System: Microsoft Windows Vista Business
Battery: Lithium-polymer
Other features: Ultrathin DVD burner, built-in webcam, biometric fingerprint reader, TrackPoint and TrackPad combo
Dimensions (w x d x h): 318 x 231 x 23.4mm
Weight: 1.42kg

Lenovo Thinkpad X300 is an ultraportable masterpiece

Advantages: Lightweight; built-in DVD burner; dual cursor controllers; host of advanced features.

Useful feature are dedicated switches to turn on the notebook’s wireless LAN and Bluetooth connectivity.

It also has the usual Thinkpad features, including the blue backup button (Vantage) to restore the OS and applications in a jiffy, as well as the light switch (now in a brighter white LED) to comfortably see the keyboard when typing in the dark.

Additionally, there is a dedicated volume control button on top as well as keys to control the media player together with the function (Fn) key.

On the productivity side, the X300 performed as expected — the machine is able to run all the regular productivity apps, surf the Web, play DVDs and MP3s, as well as run photo-editing software on average performance.

When it comes to battery life, it did not disappoint either as we managed to squeeze out more than three hours on a single charge.

Additionally, the DVD burner powers off when not in use to conserve battery life.


Disadvantages: Pricey; no memory card reader, default OS is Windows Vista (currently known as the worst OS in the world) and it is hard to recustomize for other operating system such as Windows XP or Linux unless you run it using on VMware. As with most products, however, the X300 has its fair share of drawbacks.

For starters, the X300 does not come with a built-in Flash memory card reader, which is really a shame as it is one of the must-have features in today’s laptops.

Then, there is the RM9,588 price tag, which clearly means it is targeted at the high-end market.


Conclusion

Ultraportable notebooks usually sacrifice a lot especially for multiple externals ports to keep their slimness and stay lightweight, but the X300 is really in a class of its own. It is very useful for technical troubleshooting guy. It is not meant for multimedia purposes. For photo editing, it is still cannot compete with Mac Book Pro.

Still, if you are willing to look past some of the drawbacks, the X300 is an ideal choice for road warriors who are looking for the ultimate thin and light notebook without sacrificing much of the features they need to be productive. 


THINKPAD X300 Default Specification

Ultraportable notebook

Processor: Intel Core 2 Duo processor SL7100 (1.2GHz, 4MB, 800MHz FSB)
Memory: 2GB DDR2 RAM
Graphics: Intel Graphics Media Accelerator X3100
Display: 13.3in with LED backlight (1,440 x 900pixels)
Storage: 64GB Solid State SATA Drive
Connectivity: WiFi, 10/100 Ethernet, 56k modem, Bluetooth
I/O ports: Three USB 2.0 ports, legacy ports.
Operating System: Microsoft Windows Vista Business
Battery: Lithium-polymer
Other features: Ultrathin DVD burner, built-in webcam, biometric fingerprint reader, TrackPoint and TrackPad combo
Dimensions (w x d x h): 318 x 231 x 23.4mm
Weight: 1.42kg

Monday, 24 November 2008

WiMAX Roaming Check List

As a first step to enable roaming, two WiMAX operators which desire to provide roaming service on each others’ networks must share information about their specific requirements and capabilities. This is an important step in determining whether their networks will support roaming services for each others’ subscribers. This includes information regarding frequency bands, devices, services and protocols. For example, devices of a WiMAX operator must be capable of operating on the frequencies and within the channel bands of their roaming partner. Two operators must also agree on services to be provided, IP address assignment mechanism, method of interconnection and the format and method for sharing information to track subscriber usage and to exchange information required for billing and settlement.
The following is a check list of items to be completed in order to implement roaming.
  1. Identify and contact roaming partners.
  2. Operator Information – to be shared with potential roaming partners to determine compatibility for roaming (see list below).
  3. Decide whether roaming will be through a direct connection with the roaming partner or via a third-party roaming exchange provider (WRX). If through a WRX, establish relationship with WRX provider.
  4. Use WiMAX Roaming Guidelines and Roaming Specifications as reference in ensuring your network is roaming capable.
  5. Establish a Roaming Agreement with roaming partner. (Roaming Agreement Template)
  6. Establish connectivity with roaming partner.
  7. Test roaming service (Test Plan).
  8. Begin service.