transparencies - Indico
... – Both to and from machine – Several ways to do this • Assuming static port number - block port • Limited outside connections – restrict IP addresses • Limited services – block all ports by default ...
... – Both to and from machine – Several ways to do this • Assuming static port number - block port • Limited outside connections – restrict IP addresses • Limited services – block all ports by default ...
Top-Down Network Design
... The availability and security of these services are crucial to the success of a business. Managing and securing numerous distributed servers at various locations within a business network is difficult. Recommended practice centralised servers in server farms. Server farms are typically located in co ...
... The availability and security of these services are crucial to the success of a business. Managing and securing numerous distributed servers at various locations within a business network is difficult. Recommended practice centralised servers in server farms. Server farms are typically located in co ...
SECURITY METRICS FOR ENTERPRISE INFORMATION SYSTEMS Interdisciplinarity – New Approaches and Perspectives
... Analysis Scale Ratings) by offering an open framework that can be used to rank vulnerabilities in a consistent fashion while at the same time allowing for personalization within each user environment. As CVSS matures, these metrics may expand or adjust making it even more accurate, flexible and repr ...
... Analysis Scale Ratings) by offering an open framework that can be used to rank vulnerabilities in a consistent fashion while at the same time allowing for personalization within each user environment. As CVSS matures, these metrics may expand or adjust making it even more accurate, flexible and repr ...
Slides
... Examine how packets are routed and how congestion is controlled Analyze scalability, reliability and fault-tolerance over Internet ...
... Examine how packets are routed and how congestion is controlled Analyze scalability, reliability and fault-tolerance over Internet ...
User`s Guide - Amped Wireless
... The Basic Settings page allows you to adjust settings for your 2.4GHz local wireless network. Disable 2.4GHz Wireless Connections: Disabling will turn off all 2.4GHz Wi-Fi activity. Users will no longer be able to connect wirelessly to your 2.4GHz network. Band: Select the compatible Wi-Fi standard ...
... The Basic Settings page allows you to adjust settings for your 2.4GHz local wireless network. Disable 2.4GHz Wireless Connections: Disabling will turn off all 2.4GHz Wi-Fi activity. Users will no longer be able to connect wirelessly to your 2.4GHz network. Band: Select the compatible Wi-Fi standard ...
Beyond Pilots: Keeping Rural Wireless Networks Alive
... Addressing these challenges requires looking at all levels of the system, starting from the power supply and base hardware, up through the software and user interface, all the way to training and remote management. Although remote management, reliable power and training of staff is hard in general, ...
... Addressing these challenges requires looking at all levels of the system, starting from the power supply and base hardware, up through the software and user interface, all the way to training and remote management. Although remote management, reliable power and training of staff is hard in general, ...
Rr.destination
... Examine how packets are routed and how congestion is controlled Analyze scalability, reliability and fault-tolerance over Internet ...
... Examine how packets are routed and how congestion is controlled Analyze scalability, reliability and fault-tolerance over Internet ...
Collision domains vs. broadcast domains.
... address) which are used by Layer 2 network devices to deliver network packets to the correct nodes on the network. The MAC address is composed of the OUI, which is assigned by the IEEE and the EUI, which is assigned by the manufacturer. IPv6 requires an EUI-64 format address. ...
... address) which are used by Layer 2 network devices to deliver network packets to the correct nodes on the network. The MAC address is composed of the OUI, which is assigned by the IEEE and the EUI, which is assigned by the manufacturer. IPv6 requires an EUI-64 format address. ...
4th Edition: Chapter 1
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
Bruno Nowak ICT 2006 11 10 - Docbox
... Designed to user needs; not profit based Extensive planning Additional capability beyond traditional network coverage “…I think the most salient point [of having your own system] is the ability to maintain a service level without a profit motive” Steve Jennings, CIO Harris County, TX ICT Worksh ...
... Designed to user needs; not profit based Extensive planning Additional capability beyond traditional network coverage “…I think the most salient point [of having your own system] is the ability to maintain a service level without a profit motive” Steve Jennings, CIO Harris County, TX ICT Worksh ...
4th Edition: Chapter 1
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
4th Edition: Chapter 1
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
... client host requests, receives service from always-on server client/server e.g. Web browser/server; email client/server ...
Using Dial-up Networking With Ethernet Capable PLCs
... create a new entry in the phone book using your PC’s modem as the dial-out device. Specify a user name and password for authentication. Dial-up server type is PPP, network protocol is TCP/IP. Next, configure the LAN Modem. As the LAN Modem is currently shipped, it is not set up to answer an incoming ...
... create a new entry in the phone book using your PC’s modem as the dial-out device. Specify a user name and password for authentication. Dial-up server type is PPP, network protocol is TCP/IP. Next, configure the LAN Modem. As the LAN Modem is currently shipped, it is not set up to answer an incoming ...
Introduction
... Optical links from central office to the home Two competing optical technologies: Passive Optical network (PON) Active Optical Network (PAN) Much higher Internet rates; fiber also carries ...
... Optical links from central office to the home Two competing optical technologies: Passive Optical network (PON) Active Optical Network (PAN) Much higher Internet rates; fiber also carries ...
3gpp - BNRG
... Introduces Packet Switching to Cellular Networks -- the 3GPP way! Concept: Hide cellular specifics from the legacy PS (PDN) domain Migrate from GSM to UMTS access with the same GPRS Core Network Use legacy PDN as infrastructure for the CN Many design decisions made “pre-Internet boom” -- IP not give ...
... Introduces Packet Switching to Cellular Networks -- the 3GPP way! Concept: Hide cellular specifics from the legacy PS (PDN) domain Migrate from GSM to UMTS access with the same GPRS Core Network Use legacy PDN as infrastructure for the CN Many design decisions made “pre-Internet boom” -- IP not give ...
Mobile IP: Introduction
... – What commitments that the mobile network has made in terms of service quality E.g. user’s QoS profile ...
... – What commitments that the mobile network has made in terms of service quality E.g. user’s QoS profile ...
Teaching Computer Security using Minix
... Each project adds a new functionality to the base system or replaces a functionality It is NOT a toy system, and it is NOT so complicated (some of the instructional OS has been used in some embedded systems) ...
... Each project adds a new functionality to the base system or replaces a functionality It is NOT a toy system, and it is NOT so complicated (some of the instructional OS has been used in some embedded systems) ...
Network Security Fundamentals
... For a single address space of 192.168.45.0 that you need to divide into multiple networks, do the following: – The default subnet mask is 255.255.255.0, which means you’re using 24 bits as the network ID and 8 bits as the host ID. – This gives you 254 different hosts addresses. – If you use a subnet ...
... For a single address space of 192.168.45.0 that you need to divide into multiple networks, do the following: – The default subnet mask is 255.255.255.0, which means you’re using 24 bits as the network ID and 8 bits as the host ID. – This gives you 254 different hosts addresses. – If you use a subnet ...
Summary of Network Layer Concepts
... prevents others in queue from moving forward queueing delay and loss due to input buffer overflow! ...
... prevents others in queue from moving forward queueing delay and loss due to input buffer overflow! ...
2.1 Idiosyncrasies of Ad Hoc Networks
... availability" [6]. Intrusion protection techniques work as the first line of defense. However, intrusion protection alone is not sufficient because there is no perfect security in any network system, especially in the ad hoc networks. Intrusion detection can be used as the second line of protection ...
... availability" [6]. Intrusion protection techniques work as the first line of defense. However, intrusion protection alone is not sufficient because there is no perfect security in any network system, especially in the ad hoc networks. Intrusion detection can be used as the second line of protection ...
Link asymmetry - GIST Networked Computing Systems Laboratory
... By measuring the quality of each link in both directions of the link ...
... By measuring the quality of each link in both directions of the link ...
Enabling the Network to Be More Agile for services
... 1+N MPU backup in a cluster: The system works as long as one MPU runs normally. The industry's first 2-layer AS architecture. Device reuse: Original access/core device can be used through software upgrades. Manages 64 ASs and 2K APs. The only vendor that supports centralized management of APs. Only ...
... 1+N MPU backup in a cluster: The system works as long as one MPU runs normally. The industry's first 2-layer AS architecture. Device reuse: Original access/core device can be used through software upgrades. Manages 64 ASs and 2K APs. The only vendor that supports centralized management of APs. Only ...
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.