NetworkSecurity - Computing Sciences
... • May be stashed away in lockable wiring closet along with switch to which the server is connected ...
... • May be stashed away in lockable wiring closet along with switch to which the server is connected ...
slides: wireless network topics
... • Some hosts may be far way from their AP so that the quality of their radio transmission is low • Current IEEE802.11 clients degrade the bit rate from the nominal 11Mbps to 5.5, 2, 1Mbps Such degradation also penalizes fast hosts and privileges the slow one ...
... • Some hosts may be far way from their AP so that the quality of their radio transmission is low • Current IEEE802.11 clients degrade the bit rate from the nominal 11Mbps to 5.5, 2, 1Mbps Such degradation also penalizes fast hosts and privileges the slow one ...
IEEE 802.11 based WLANs
... independent of topology, medium, and chosen MAC access method Data to higher level protocols ...
... independent of topology, medium, and chosen MAC access method Data to higher level protocols ...
SW architecture
... device. Applications include wireless light switches, electrical meters with inhome-displays, traffic management systems, and other consumer and industrial equipment that requires short-range wireless transfer of data at relatively low rates. Zigbee is for personal area networks built from small, lo ...
... device. Applications include wireless light switches, electrical meters with inhome-displays, traffic management systems, and other consumer and industrial equipment that requires short-range wireless transfer of data at relatively low rates. Zigbee is for personal area networks built from small, lo ...
NETWORK DEVICES.doc
... A router can be used on any size network. On the largest scale, routers along the internet backbone forward data packets to their destination using the fastest available path. For smaller business and home networks, a router allows multiple computers to share a single highspeed Internet connection s ...
... A router can be used on any size network. On the largest scale, routers along the internet backbone forward data packets to their destination using the fastest available path. For smaller business and home networks, a router allows multiple computers to share a single highspeed Internet connection s ...
mathe_CoDesignForSecureEmbeddedSystems_TrustApril06Poster
... Introducing security at design level • Consistent and automatic configuration of security services offered by the operating system and middleware • Investigating design tradeoffs between performance and security properties • Verifying required security properties using explicit security models ...
... Introducing security at design level • Consistent and automatic configuration of security services offered by the operating system and middleware • Investigating design tradeoffs between performance and security properties • Verifying required security properties using explicit security models ...
Computer Security - University at Albany
... IP Spoofing – Source Routing Definition: Attacker spoofs the address of another machine and inserts itself between the attacked machine and the spoofed machine to intercept replies Attacker intercepts packets as they go to 10.10.20.30 ...
... IP Spoofing – Source Routing Definition: Attacker spoofs the address of another machine and inserts itself between the attacked machine and the spoofed machine to intercept replies Attacker intercepts packets as they go to 10.10.20.30 ...
eRouter-200TM
... with Port Address Translation (PAT), Network Address Translation (NAT) (up to 5000 sessions), IP routing over Frame Relay, Point-toPoint Protocol (PPP), and High-Speed Data ...
... with Port Address Translation (PAT), Network Address Translation (NAT) (up to 5000 sessions), IP routing over Frame Relay, Point-toPoint Protocol (PPP), and High-Speed Data ...
Security considerations for M2M - IEEE 802 LAN/MAN Standards
... Physical Attacks such as insertion of valid authentication tokens into a manipulated device, inserting and/or booting with fraudulent or modified software (“re-flashing”), and environmental/side-channel attacks, both before and after in-field deployment. Compromise of Credentials comprising brute fo ...
... Physical Attacks such as insertion of valid authentication tokens into a manipulated device, inserting and/or booting with fraudulent or modified software (“re-flashing”), and environmental/side-channel attacks, both before and after in-field deployment. Compromise of Credentials comprising brute fo ...
Wireless Networks
... compliant frames before transmitting them on the WLAN. Accepts 802.11 frames from the WLAN and converts them into Ethernet frames before placing them onto the wired network. APs support wireless connections within a limited area, known as a cell or Basic Service Set (BSS) ...
... compliant frames before transmitting them on the WLAN. Accepts 802.11 frames from the WLAN and converts them into Ethernet frames before placing them onto the wired network. APs support wireless connections within a limited area, known as a cell or Basic Service Set (BSS) ...
anti bullying policy - Boskenwyn Primary School
... a) Users must login with their own user ID and password, where applicable, and must not share this information with other users. They must also log off after their session has finished. b) Users finding machines logged on under other users username should log off the machine whether they intend to u ...
... a) Users must login with their own user ID and password, where applicable, and must not share this information with other users. They must also log off after their session has finished. b) Users finding machines logged on under other users username should log off the machine whether they intend to u ...
Lecture 7 - cda college
... phone or other mobile device or computer Picture messaging allows users to send pictures and sound files Video messaging allows users to send short video clips Wireless instant messaging allows wireless users to exchange real-time messages with one or more other users ...
... phone or other mobile device or computer Picture messaging allows users to send pictures and sound files Video messaging allows users to send short video clips Wireless instant messaging allows wireless users to exchange real-time messages with one or more other users ...
Networking on the International Space Station
... Very fast but non-routable Self-tuning and self-configuring Suitable for small networks such as OPS LAN Uses broadcasts to locate other computers on the network. TCP/IP (Transmission Control Protocol / Internet Protocol) Most common network protocol in the world Routable ...
... Very fast but non-routable Self-tuning and self-configuring Suitable for small networks such as OPS LAN Uses broadcasts to locate other computers on the network. TCP/IP (Transmission Control Protocol / Internet Protocol) Most common network protocol in the world Routable ...
NETWORKING I
... Looking at the web server example, HTTP does not specify what programming language is used to create the browser, which web server software should be used to serve the web pages, what operating system the software runs on, or the hardware requirements necessary to display the browser. It also does n ...
... Looking at the web server example, HTTP does not specify what programming language is used to create the browser, which web server software should be used to serve the web pages, what operating system the software runs on, or the hardware requirements necessary to display the browser. It also does n ...
Security In Wireless Sensor Networks
... – Transmit malicious routing information into the network resulting in routing inconsistencies – Authentication might guard against injection attacks, but some routing protocols are vulnerable to replay by the attacker of legitimate routing messages ...
... – Transmit malicious routing information into the network resulting in routing inconsistencies – Authentication might guard against injection attacks, but some routing protocols are vulnerable to replay by the attacker of legitimate routing messages ...
Slide 1
... each computer in the network can act as a client or server for the other computers in the network, allowing shared access to various resources such as files, peripherals, and sensors without the need for a central server. P2P networks can be set up within the home, a business, or over the Internet. ...
... each computer in the network can act as a client or server for the other computers in the network, allowing shared access to various resources such as files, peripherals, and sensors without the need for a central server. P2P networks can be set up within the home, a business, or over the Internet. ...
Pre-list
... Class A: network 1 – 126 (Network 127 is reserved for loopback and internal testing) Class B: network 128 – 191 Class C: network 192 – 223 Class D: network 224 - 239 (Reserved for multicast) Class E: network 240 – 255(Reserved for Experimental, used for research) 2. There are public IP address used ...
... Class A: network 1 – 126 (Network 127 is reserved for loopback and internal testing) Class B: network 128 – 191 Class C: network 192 – 223 Class D: network 224 - 239 (Reserved for multicast) Class E: network 240 – 255(Reserved for Experimental, used for research) 2. There are public IP address used ...
Chapter 11 Outline
... IPSec connection is established, it is possible to tunnel across other networks at lower levels of the OSI model. C. The set of security services provided by IPSec occurs at the network layer of the OSI model, so higher layer protocols, such as TCP, UDP, ICMP, and BGP, are unaffected by the implemen ...
... IPSec connection is established, it is possible to tunnel across other networks at lower levels of the OSI model. C. The set of security services provided by IPSec occurs at the network layer of the OSI model, so higher layer protocols, such as TCP, UDP, ICMP, and BGP, are unaffected by the implemen ...
Taxonomy of Computer Security Incidents
... • Incident Category Type (e.g., CAT 1, CAT 2, etc.) • Incident Timestamp • Source IP, Destination IP, port, and protocol • Operating System, including version, patches, etc. • System Function (e.g., DNS/web server, workstation, etc.) • Antivirus software installed, including version, and latest upda ...
... • Incident Category Type (e.g., CAT 1, CAT 2, etc.) • Incident Timestamp • Source IP, Destination IP, port, and protocol • Operating System, including version, patches, etc. • System Function (e.g., DNS/web server, workstation, etc.) • Antivirus software installed, including version, and latest upda ...
C N+1
... No inherent physical protection physical connections between devices are replaced by logical associations sending and receiving messages do not need physical access to the network infrastructure (cables, hubs, routers, etc.) Broadcast communications wireless usually means radio, which has ...
... No inherent physical protection physical connections between devices are replaced by logical associations sending and receiving messages do not need physical access to the network infrastructure (cables, hubs, routers, etc.) Broadcast communications wireless usually means radio, which has ...
basic configuration guide for adsl router - aw4062
... This document is guideline of use and configuration of the ADSL router - AW4062 through the web interface. For the configuration of the ADSL service provided by your ISP, it is recommended to follow the instructions in the Installation Guide provided in the router´s Kit. The present document is a co ...
... This document is guideline of use and configuration of the ADSL router - AW4062 through the web interface. For the configuration of the ADSL service provided by your ISP, it is recommended to follow the instructions in the Installation Guide provided in the router´s Kit. The present document is a co ...
eHealth Network Monitoring
... Prevent outages and ensure availability by identifying which resources are at risk of failure Manage servers supporting network services, such as firewalls, DNS, and DHCP servers, on Windows and UNIX ...
... Prevent outages and ensure availability by identifying which resources are at risk of failure Manage servers supporting network services, such as firewalls, DNS, and DHCP servers, on Windows and UNIX ...
WEP Insecurities
... • "EAP is used to select a specific authentication mechanism, typically after the authenticator requests more information in order to determine the specific authentication method to be used." –RFC 3748, page 3 (Step 0) Link Control Phase w/ AP to initiate “EAP-Start” (EAPoL-Start) - AP usually just ...
... • "EAP is used to select a specific authentication mechanism, typically after the authenticator requests more information in order to determine the specific authentication method to be used." –RFC 3748, page 3 (Step 0) Link Control Phase w/ AP to initiate “EAP-Start” (EAPoL-Start) - AP usually just ...
Riviera Utilities Position Description IT Network Engineer RIVIERA
... 8. Ability to demonstrate empathy and responsiveness to internal and external customer needs by being timely, delegating if necessary, and following through on customer satisfaction. 9. Ability to give full attention to what other people are saying, taking time to understand the points being made, a ...
... 8. Ability to demonstrate empathy and responsiveness to internal and external customer needs by being timely, delegating if necessary, and following through on customer satisfaction. 9. Ability to give full attention to what other people are saying, taking time to understand the points being made, a ...
Wireless security
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.