Wi-Fi - Revision history

Hamilr3: /* External Links */

2009-04-13T00:19:31Z

External Links

← Older revision		Revision as of 00:19, 13 April 2009
Line 129:		Line 129:


-	--[[User:Hamilr3\|Hamilr3]] 00:51, 10 April 2009 (EDT)	+	--[[User:Hamilr3\|Hamilr3]] 20:19, 12 April 2009 (EDT)

Hamilr3: /* History */

2009-04-13T00:18:56Z

History

← Older revision		Revision as of 00:18, 13 April 2009
Line 11:		Line 11:
	Wi-Fi was invented by Vic Hayes (dubbed 'the father of Wi-Fi') at the NCR Corporation/AT & T (later Lucent & Agere Systems), in 1991. Hayes had been designing IEEE standards for 802.11b, 802.11a and 802.11g and subsequent technology, initially meant for cashier systems. NCR initially released the technology under the name of 'WaveLAN' which operated in a range of 1Mbps-2 Mbps. <sup>[2]</sup> The Wi-Fi alliance was created soon after the technology.		Wi-Fi was invented by Vic Hayes (dubbed 'the father of Wi-Fi') at the NCR Corporation/AT & T (later Lucent & Agere Systems), in 1991. Hayes had been designing IEEE standards for 802.11b, 802.11a and 802.11g and subsequent technology, initially meant for cashier systems. NCR initially released the technology under the name of 'WaveLAN' which operated in a range of 1Mbps-2 Mbps. <sup>[2]</sup> The Wi-Fi alliance was created soon after the technology.

-	The alliance is a consortium of separate, independent companies that promotes and develops IEEE 802.11 standards. The alliance also tests products to establish interoperability and certifies products that pass. The 'Wi-Fi' logo is allowed to be used by manufacturers who subscribe to the alliance and whose products pass testing. There exists sever unofficial "Wi-Fi" products that may work, but lack true certification.	+	The alliance is a consortium of separate, independent companies that promotes and develops IEEE 802.11 standards. The alliance also tests products to establish interoperability and certifies products that pass. The 'Wi-Fi' logo is allowed to be used by manufacturers who subscribe to the alliance and whose products pass testing. There exists sever unofficial "Wi-Fi" products that may work, but lack true certification.<sup>[6]</sup>

	The term "Wi-Fi" was coined by Interbrand Corporation in August 1999 when hired by the Alliance to change the name from 'IEEE 802.11b Direct Sequence.' Interbrand also created the official 'Wi-Fi' logo. It is often assumed that Wi-Fi stands for "Wireless Fidelity", however officially Wi-Fi is an abstract term and the Wi-Fi alliance is trying to downplay any association to "Hi-Fi" (High Fidelity).		The term "Wi-Fi" was coined by Interbrand Corporation in August 1999 when hired by the Alliance to change the name from 'IEEE 802.11b Direct Sequence.' Interbrand also created the official 'Wi-Fi' logo. It is often assumed that Wi-Fi stands for "Wireless Fidelity", however officially Wi-Fi is an abstract term and the Wi-Fi alliance is trying to downplay any association to "Hi-Fi" (High Fidelity).

Hamilr3: /* Advantages and Challenges */

2009-04-13T00:18:20Z

Advantages and Challenges

← Older revision		Revision as of 00:18, 13 April 2009
Line 29:		Line 29:

	==Advantages and Challenges==		==Advantages and Challenges==
-	Wi-Fi uses an unlicensed radio spectrum (unlike packet radio systems) and does not require regulatory approval for individual developers, which makes Wi-Fi products widely available. Different brands are able to make products that are interoperable at a basic service level because of the technological foundations in Wi-Fi. Competition amounsts vendors has also considerably lowered prices of Wi-Fi products, and they continue to drop as technology improves.	+	Wi-Fi uses an unlicensed radio spectrum (unlike packet radio systems) and does not require regulatory approval for individual developers, which makes Wi-Fi products widely available. Different brands are able to make products that are interoperable at a basic service level because of the technological foundations in Wi-Fi. Competition amounsts vendors has also considerably lowered prices of Wi-Fi products, and they continue to drop as technology improves. <sup>[3]</sup>

	Wi-Fi allows local area networks (LANs) to be set up without wires, which simultaneously lowers costs (of creating and exapnding) and allows much freedom in where a network can be accessed. The Wi-Fi certification aheres to a global set of standards as well so Wi-Fi products are compatible in any region.		Wi-Fi allows local area networks (LANs) to be set up without wires, which simultaneously lowers costs (of creating and exapnding) and allows much freedom in where a network can be accessed. The Wi-Fi certification aheres to a global set of standards as well so Wi-Fi products are compatible in any region.

Hamilr3: /* Uses */

2009-04-13T00:17:40Z

Uses

← Older revision		Revision as of 00:17, 13 April 2009
Line 26:		Line 26:
	Wi-Fi devices can operate in different modes such as peer-to-peer mode, which allows a direct connection between two people. In ad-hoc mode Wi-Fi devices are able to make client-to-client connections without a router.		Wi-Fi devices can operate in different modes such as peer-to-peer mode, which allows a direct connection between two people. In ad-hoc mode Wi-Fi devices are able to make client-to-client connections without a router.

-	Wi-Fi can enable wireless voice application (VoIP). The widespread growth of Wi-Fi now allows access to the internet outside 'traditional' setups (such as the bathroom). Wi-Fi installations can ultimately provide: a sequre computer networking gateway, firewall, DHCP server, intrusion detection system and many other services.	+	Wi-Fi can enable wireless voice application (VoIP). The widespread growth of Wi-Fi now allows access to the internet outside 'traditional' setups (such as the bathroom). Wi-Fi installations can ultimately provide: a sequre computer networking gateway, firewall, DHCP server, intrusion detection system and many other services.<sup>[7]</sup>

	==Advantages and Challenges==		==Advantages and Challenges==

Hamilr3: /* DNS Spoofing and Kaminsky Attack */

2009-04-13T00:16:11Z

DNS Spoofing and Kaminsky Attack

← Older revision		Revision as of 00:16, 13 April 2009
Line 87:		Line 87:
	'''Patch fixing Kaminsky attack'''		'''Patch fixing Kaminsky attack'''

-	Most computers have 63, 536 ports, but DNS commonly uses only port 53 for all queries and responses. The patch works by randomly changing the port number for each DNS request. Now any response to a request must contain an accurate transaction ID number and return to the same port. The change increases the odds of beating the system from one in 65, 536 to one in 4 billion.<sup>[~~numb~~]</sup>	+	Most computers have 63, 536 ports, but DNS commonly uses only port 53 for all queries and responses. The patch works by randomly changing the port number for each DNS request. Now any response to a request must contain an accurate transaction ID number and return to the same port. The change increases the odds of beating the system from one in 65, 536 to one in 4 billion.<sup>[4]</sup>

	===Piggybacking===		===Piggybacking===

Hamilr3: /* Piggybacking */

2009-04-13T00:15:49Z

Piggybacking

← Older revision		Revision as of 00:15, 13 April 2009
Line 92:		Line 92:
	Piggybacking refers to accessing a wireless internet connection by bringing a wireless device in range of another connection and using the service without the owners knowledge or permission. Piggybacking is completely outlawed in some jurisdictions, but allowed in others. It is not considered piggybacking if a bussiness offers a Wi-Fi hotspot for free or as a pay service.		Piggybacking refers to accessing a wireless internet connection by bringing a wireless device in range of another connection and using the service without the owners knowledge or permission. Piggybacking is completely outlawed in some jurisdictions, but allowed in others. It is not considered piggybacking if a bussiness offers a Wi-Fi hotspot for free or as a pay service.

-	Piggybacking ofter goes unnoticed since most people only use a fraction of their upstream bandwidth. Piggybacking may also be carried out unintentionally, as most access points are configured without encryption (WPA2) and operating systems can automatically connect to wireless networks. The danger in piggybacking exists in users logging into an insecure network where illicit activity is conducted (danger for network owner) or sensitive information is broadcast (danger for user).<sup>[~~ffffffff~~]</sup>	+	Piggybacking ofter goes unnoticed since most people only use a fraction of their upstream bandwidth. Piggybacking may also be carried out unintentionally, as most access points are configured without encryption (WPA2) and operating systems can automatically connect to wireless networks. The danger in piggybacking exists in users logging into an insecure network where illicit activity is conducted (danger for network owner) or sensitive information is broadcast (danger for user).<sup>[5]</sup>

	===The Wi-Fi Scam, Home Security Scam and Bluetooth Scam===		===The Wi-Fi Scam, Home Security Scam and Bluetooth Scam===

Hamilr3: /* References */

2009-04-13T00:14:15Z

References

← Older revision		Revision as of 00:14, 13 April 2009
Line 115:		Line 115:
	# Davis, Joshua (Dec 2008). Collapse. ''WIRED Magazine'' (pp. 200-205,224, 231)		# Davis, Joshua (Dec 2008). Collapse. ''WIRED Magazine'' (pp. 200-205,224, 231)
	# "[http://en.wikipedia.org/wiki/Piggybacking_(internet_access) Piggybacking]". Retrieved on 2009-04-07		# "[http://en.wikipedia.org/wiki/Piggybacking_(internet_access) Piggybacking]". Retrieved on 2009-04-07
		+	# "[http://www.wi-fi.org/about_overview.php Overview of the Wi-Fi Alliance]". Retrieved on 2009-04-08
		+	# "[http://computer.howstuffworks.com/municipal-wifi.htm How Municipal Wi-Fi works]". Retrieved on 2009-04-09

	==See Also==		==See Also==

Hamilr3: /* See Also */

2009-04-13T00:10:41Z

Hamilr3: /* References */

2009-04-13T00:08:58Z

References

← Older revision		Revision as of 00:08, 13 April 2009
Line 114:		Line 114:
	# "[http://networkbits.net/wireless-printing/80211-g-pros-cons-of-a-wireless-network-in-a-business-environment/ Pros and Cons...]". Retrieved on 2009-04-07		# "[http://networkbits.net/wireless-printing/80211-g-pros-cons-of-a-wireless-network-in-a-business-environment/ Pros and Cons...]". Retrieved on 2009-04-07
	# Davis, Joshua (Dec 2008). Collapse. ''WIRED Magazine'' (pp. 200-205,224, 231)		# Davis, Joshua (Dec 2008). Collapse. ''WIRED Magazine'' (pp. 200-205,224, 231)
		+	# "[http://en.wikipedia.org/wiki/Piggybacking_(internet_access) Piggybacking]". Retrieved on 2009-04-07

	==See Also==		==See Also==

Hamilr3: /* Piggybacking */

2009-04-13T00:08:18Z

Piggybacking

← Older revision		Revision as of 00:08, 13 April 2009
Line 92:		Line 92:
	Piggybacking refers to accessing a wireless internet connection by bringing a wireless device in range of another connection and using the service without the owners knowledge or permission. Piggybacking is completely outlawed in some jurisdictions, but allowed in others. It is not considered piggybacking if a bussiness offers a Wi-Fi hotspot for free or as a pay service.		Piggybacking refers to accessing a wireless internet connection by bringing a wireless device in range of another connection and using the service without the owners knowledge or permission. Piggybacking is completely outlawed in some jurisdictions, but allowed in others. It is not considered piggybacking if a bussiness offers a Wi-Fi hotspot for free or as a pay service.

-	Piggybacking ofter goes unnoticed since most people only use a fraction of their upstream bandwidth. Piggybacking may also be carried out unintentionally, as most access points are configured without encryption (WPA2) and operating systems can automatically connect to wireless networks. The danger in piggybacking exists in users logging into an insecure network where illicit activity is conducted (danger for network owner) or sensitive information is broadcast (danger for user).	+	Piggybacking ofter goes unnoticed since most people only use a fraction of their upstream bandwidth. Piggybacking may also be carried out unintentionally, as most access points are configured without encryption (WPA2) and operating systems can automatically connect to wireless networks. The danger in piggybacking exists in users logging into an insecure network where illicit activity is conducted (danger for network owner) or sensitive information is broadcast (danger for user).<sup>[ffffffff]</sup>

	===The Wi-Fi Scam, Home Security Scam and Bluetooth Scam===		===The Wi-Fi Scam, Home Security Scam and Bluetooth Scam===

← Older revision		Revision as of 00:10, 13 April 2009
Line 122:		Line 122:
	* [http://www.cas.mcmaster.ca/wiki/index.php/Peer_To_Peer_Network_Security Peer To Peer Network Security]		* [http://www.cas.mcmaster.ca/wiki/index.php/Peer_To_Peer_Network_Security Peer To Peer Network Security]
	* [http://www.cas.mcmaster.ca/wiki/index.php/Man_in_the_Middle_Attack Man in the Middle Attacks]		* [http://www.cas.mcmaster.ca/wiki/index.php/Man_in_the_Middle_Attack Man in the Middle Attacks]
		+	* [http://www.cas.mcmaster.ca/wiki/index.php/Domain_Name_System Domain Name System (DNS)]

	==External Links==		==External Links==