What are the three basic LAN topologies? 2. What common WAN
... What network model draws a clear distinction between devices that share their resources and devices that do not? ...
... What network model draws a clear distinction between devices that share their resources and devices that do not? ...
L16_Security
... a transferred file are subject to these threats encryption masks the contents of what is transferred so even if obtained by someone, they would be unable to extract information ...
... a transferred file are subject to these threats encryption masks the contents of what is transferred so even if obtained by someone, they would be unable to extract information ...
... those of Ethernet. Wi-Fi support and compatibility are provided at this moment by many, if not all, new hardware mobile devices, routers and operating systems. All new laptops and wireless devices have also a built-in Wi-Fi card that allows automatic usage of the service, with the possibility to con ...
Symposium CfP - IEEE Globecom 2016
... Cloud & Outsourcing Security, Wireless & Wearable Systems Security, and Mobile Sensing & Crowdsourcing. His research has been supported by NSF, DoE, AFRL, MSR, and Amazon. He was a recipient of SEAS Senior Researcher of the Year, UB in 2015, Sigma Xi/IIT Research Excellence Award in 2012, and NSF CA ...
... Cloud & Outsourcing Security, Wireless & Wearable Systems Security, and Mobile Sensing & Crowdsourcing. His research has been supported by NSF, DoE, AFRL, MSR, and Amazon. He was a recipient of SEAS Senior Researcher of the Year, UB in 2015, Sigma Xi/IIT Research Excellence Award in 2012, and NSF CA ...
of the Internet
... 1.5.2 3G mobile phone networks (4) Security SIM (Subscriber Identity Module) card Authentication Cryptographic keys on the chip are used to encrypt transmissions Encryption cell phone ...
... 1.5.2 3G mobile phone networks (4) Security SIM (Subscriber Identity Module) card Authentication Cryptographic keys on the chip are used to encrypt transmissions Encryption cell phone ...
Protocol Overview
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
... using secret-key cryptography. • Before a network connection is opened between two entities, Kerberos establishes a shared secret key through a Ticket Granting Server (TGS) that is used for authenticating the parties in the subsequent communications • Versions of Kerberos also have extensions to uti ...
Assignment 3 - Network Components
... What is a Network Gateway? A network gateway is an internetworking system capable of joining together two networks that use different base protocols. A network gateway can be implemented completely in software, completely in hardware, or as a combination of both. Depending on the types of protocols ...
... What is a Network Gateway? A network gateway is an internetworking system capable of joining together two networks that use different base protocols. A network gateway can be implemented completely in software, completely in hardware, or as a combination of both. Depending on the types of protocols ...
Chapter 6
... • An access control list (ACL) is a list or database of people who can access the files and resources. Click to see Figure 6-20: ...
... • An access control list (ACL) is a list or database of people who can access the files and resources. Click to see Figure 6-20: ...
Preventative controls
... • Disasters are different from disruptions since the entire site can be destroyed. • The best solution is to have a completely redundant network that duplicates every network component, but in a different location. • Generally speaking, preventing disasters is difficult. The most fundamental princip ...
... • Disasters are different from disruptions since the entire site can be destroyed. • The best solution is to have a completely redundant network that duplicates every network component, but in a different location. • Generally speaking, preventing disasters is difficult. The most fundamental princip ...
Edge Port Security using IEEE 802.1x
... - If credentials are valid, RADIUS Access-Accept message (possibly with Filter-ID or Tunnel attributes) is returned to switch ...
... - If credentials are valid, RADIUS Access-Accept message (possibly with Filter-ID or Tunnel attributes) is returned to switch ...
CIS 1140 Network Fundamentals
... ESS with several authorized access points – Must allow station association with any access point ...
... ESS with several authorized access points – Must allow station association with any access point ...
Wireless Network
... traffic that can be used to either route traffic on PSTN or provide new services between network nodes and end users ISDN has 2 types of channels: o Information bearing channels called Bearer channels (B channels) –64kbps o Out of band signaling channels, called data channels (D channels) ...
... traffic that can be used to either route traffic on PSTN or provide new services between network nodes and end users ISDN has 2 types of channels: o Information bearing channels called Bearer channels (B channels) –64kbps o Out of band signaling channels, called data channels (D channels) ...
SECURITY
... “Identify the risk then either accept it, or reduce it or insure against it.” “Security does not have to be perfect but risks have to be manageable.” “Outsource to experts!” ...
... “Identify the risk then either accept it, or reduce it or insure against it.” “Security does not have to be perfect but risks have to be manageable.” “Outsource to experts!” ...
Crowd Management System
... Scalability much beyond any other wired or wireless network solution Zero infrastructural requirement Self configurable and Self healing networks Global networking parameters determined by purely local decision making Minimal external computation required ...
... Scalability much beyond any other wired or wireless network solution Zero infrastructural requirement Self configurable and Self healing networks Global networking parameters determined by purely local decision making Minimal external computation required ...
Wireless Security
... To/From AP defines meaning of address fields 802.11 allows for fragmentation at the link layer ...
... To/From AP defines meaning of address fields 802.11 allows for fragmentation at the link layer ...
Wireless LAN and IEEE 802.11
... Also the mobile agent registers itself with that foreign agent. ...
... Also the mobile agent registers itself with that foreign agent. ...
SE 4C03 Winter 2004
... vulnerability due to its complexity. It is made complicated because of the convenience windows wants to provide, however, that became its downfall. On the other hand, Linux and Unix operating systems are known to be safe because a user has total control over operating system. In this aspect, the use ...
... vulnerability due to its complexity. It is made complicated because of the convenience windows wants to provide, however, that became its downfall. On the other hand, Linux and Unix operating systems are known to be safe because a user has total control over operating system. In this aspect, the use ...
Data Link Layer
... measure signal strengths, compare transmitted, received signals: easy in wired LANs difficult in wireless LANs: receiver shut off while transmitting Most used protocol in Ethernet ...
... measure signal strengths, compare transmitted, received signals: easy in wired LANs difficult in wireless LANs: receiver shut off while transmitting Most used protocol in Ethernet ...
ch07 - Cisco Academy
... • Secure system should be simple enough for those on the inside to understand and use • Challenge is to make the system simple from the inside but complex from the outside – Will reap a large benefit in information security ...
... • Secure system should be simple enough for those on the inside to understand and use • Challenge is to make the system simple from the inside but complex from the outside – Will reap a large benefit in information security ...
LVRJ Case study
... actionable control panel for a single view of all user activity and security incidents across the Review-Journal LAN. About ConSentry Networks ConSentry Networks secures enterprise LANs with a purpose-built system that preserves data integrity, ensures network availability and supports regulatory co ...
... actionable control panel for a single view of all user activity and security incidents across the Review-Journal LAN. About ConSentry Networks ConSentry Networks secures enterprise LANs with a purpose-built system that preserves data integrity, ensures network availability and supports regulatory co ...
INFO 2225 - Metropolitan Community College
... Research Terminal Emulation Client Software and Configure the SSH Client Secure Cisco IOS Image and Configure Files on R1 and R3’ Configure a Synchronized Time Source Using NTP Configure Automated Security Features Use the CCP Security Audit Tool on R1 to Identify Security Risk ...
... Research Terminal Emulation Client Software and Configure the SSH Client Secure Cisco IOS Image and Configure Files on R1 and R3’ Configure a Synchronized Time Source Using NTP Configure Automated Security Features Use the CCP Security Audit Tool on R1 to Identify Security Risk ...
cture11 - Philadelphia University Jordan
... The security zone closest to the company is called the intranet. This is also known as the internal network, private network, local area network (LAN), trusted network, protected network, and company or organizational network. The intranet is typically the network (or networks) that contains most of ...
... The security zone closest to the company is called the intranet. This is also known as the internal network, private network, local area network (LAN), trusted network, protected network, and company or organizational network. The intranet is typically the network (or networks) that contains most of ...
Wireless security
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Wireless security is the prevention of unauthorized access or damage to computers using wireless networks. The most common types of wireless security are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WEP is a notoriously weak security standard. The password it uses can often be cracked in a few minutes with a basic laptop computer and widely available software tools. WEP is an old IEEE 802.11 standard from 1999, which was outdated in 2003 by WPA, or Wi-Fi Protected Access. WPA was a quick alternative to improve security over WEP. The current standard is WPA2; some hardware cannot support WPA2 without firmware upgrade or replacement. WPA2 uses an encryption device that encrypts the network with a 256-bit key; the longer key length improves security over WEP.Many laptop computers have wireless cards pre-installed. The ability to enter a network while mobile has great benefits. However, wireless networking is prone to some security issues. Hackers have found wireless networks relatively easy to break into, and even use wireless technology to hack into wired networks. As a result, it is very important that enterprises define effective wireless security policies that guard against unauthorized access to important resources. Wireless Intrusion Prevention Systems (WIPS) or Wireless Intrusion Detection Systems (WIDS) are commonly used to enforce wireless security policies.The risks to users of wireless technology have increased as the service has become more popular. There were relatively few dangers when wireless technology was first introduced. Hackers had not yet had time to latch on to the new technology, and wireless networks were not commonly found in the work place. However, there are many security risks associated with the current wireless protocols and encryption methods, and in the carelessness and ignorance that exists at the user and corporate IT level. Hacking methods have become much more sophisticated and innovative with wireless access. Hacking has also become much easier and more accessible with easy-to-use Windows- or Linux-based tools being made available on the web at no charge.Some organizations that have no wireless access points installed do not feel that they need to address wireless security concerns. In-Stat MDR and META Group have estimated that 95% of all corporate laptop computers that were planned to be purchased in 2005 were equipped with wireless cards. Issues can arise in a supposedly non-wireless organization when a wireless laptop is plugged into the corporate network. A hacker could sit out in the parking lot and gather information from it through laptops and/or other devices, or even break in through this wireless card–equipped laptop and gain access to the wired network.