![Denial of Service Attacks](http://s1.studyres.com/store/data/008733028_1-1250d57f7846f9cac8c118cd9b7ff40e-300x300.png)
Denial of Service Attacks
... on a single host in under 5 seconds. In other words, several thousand hosts can be compromised in under an hour. Enlisting numerous computers in a DDoS assault makes it both more devastating and harder to stop due to its distributed nature. It also makes tracing the original source of the attack v ...
... on a single host in under 5 seconds. In other words, several thousand hosts can be compromised in under an hour. Enlisting numerous computers in a DDoS assault makes it both more devastating and harder to stop due to its distributed nature. It also makes tracing the original source of the attack v ...
Network Design Proposal
... With the increased growth of complex networks, network security has taken the centre stage leading to further concerns regarding data privacy and security. It is imperative therefore for business organizations to possess the knowledge on securing their networks. The good thing is that there exist al ...
... With the increased growth of complex networks, network security has taken the centre stage leading to further concerns regarding data privacy and security. It is imperative therefore for business organizations to possess the knowledge on securing their networks. The good thing is that there exist al ...
Monitoring and Controlling of Air Pollution Using Intelligent Control
... especially in industrial areas like Pune. To detect percentage of pollution, we used the array of sensor to measure gas quantity in the physical environment in surrounding the sensor and convert them into electrical signals for processing. Such a signal reveals some properties about interested gas m ...
... especially in industrial areas like Pune. To detect percentage of pollution, we used the array of sensor to measure gas quantity in the physical environment in surrounding the sensor and convert them into electrical signals for processing. Such a signal reveals some properties about interested gas m ...
Zigbee - K.f.u.p.m. OCW
... central controller, called the PAN coordinator. The PAN coordinator may be main powered while the devices will most likely be battery powered. Each start network chooses a PAN identifier, which is not currently used by any other network within the radio sphere of influence. This allows each star ...
... central controller, called the PAN coordinator. The PAN coordinator may be main powered while the devices will most likely be battery powered. Each start network chooses a PAN identifier, which is not currently used by any other network within the radio sphere of influence. This allows each star ...
ECMM6018 Tutorial8
... DHCP Server Configuration File Set the DNS server to be used by the # DHCP clients option domain-name-servers 192.168.1.100; # Set the NTP server to be used by the # DHCP clients option nntp-server 192.168.1.100; # If you specify a WINS server for your Windows clients, # you need to include the fol ...
... DHCP Server Configuration File Set the DNS server to be used by the # DHCP clients option domain-name-servers 192.168.1.100; # Set the NTP server to be used by the # DHCP clients option nntp-server 192.168.1.100; # If you specify a WINS server for your Windows clients, # you need to include the fol ...
Chapter 6 slides, Computer Networking, 3rd edition
... host: must associate with an AP scans channels, listening for beacon frames containing AP’s name (SSID) and MAC address selects AP to associate with may perform authentication [Chapter 8] will typically run DHCP to get IP address in AP’s ...
... host: must associate with an AP scans channels, listening for beacon frames containing AP’s name (SSID) and MAC address selects AP to associate with may perform authentication [Chapter 8] will typically run DHCP to get IP address in AP’s ...
Chapter_6_V6.0 - Rose
... access of data frames: avoid collisions of long data frames sender first transmits small request-to-send (RTS) packets to BS using CSMA RTSs may still collide with each other (but they’re short) ...
... access of data frames: avoid collisions of long data frames sender first transmits small request-to-send (RTS) packets to BS using CSMA RTSs may still collide with each other (but they’re short) ...
Enhancing Routing Techniques to Trace Efficient Transfer
... hybrid type. Proactive routing protocols also called table-driven routing protocol like DSDV demand that each sensor node should have whole routing information of all nodes in the network. Reactive protocols like AODV and DSR do not maintain route information in advance, this will creates a route on ...
... hybrid type. Proactive routing protocols also called table-driven routing protocol like DSDV demand that each sensor node should have whole routing information of all nodes in the network. Reactive protocols like AODV and DSR do not maintain route information in advance, this will creates a route on ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... This paper will address the problems in most peer to peer VoIP networks Most WiFi networks provide a tempting entry point for hackers and other unauthorized users. Many enterprises are discovering the cost and productivity benefits wireless VoIP provides. As a result, a growing number of enterprises ...
... This paper will address the problems in most peer to peer VoIP networks Most WiFi networks provide a tempting entry point for hackers and other unauthorized users. Many enterprises are discovering the cost and productivity benefits wireless VoIP provides. As a result, a growing number of enterprises ...
IEEE Transactions on Magnetics
... communication - a simple serial method of transmit/receive or a ...
... communication - a simple serial method of transmit/receive or a ...
ppt - Zoo
... Client-Server Paradigm Typical network app has two pieces: client and server Client (C): initiates contact with server (“speaks first”) typically requests service from server for Web, client is implemented in browser; for e-mail, in mail ...
... Client-Server Paradigm Typical network app has two pieces: client and server Client (C): initiates contact with server (“speaks first”) typically requests service from server for Web, client is implemented in browser; for e-mail, in mail ...
Sample
... Which of the following is an Internet connection type generally used only in telecommunications? A. DS0 B. ISDN C. T3 D. OC12 ...
... Which of the following is an Internet connection type generally used only in telecommunications? A. DS0 B. ISDN C. T3 D. OC12 ...
UAVNet: A Mobile Wireless Mesh Network Using
... nodes on the ground. The UAVs can broadcast link state information efficiently for improving routing performance. The research project AirShield [3] proposes to use autonomous flying robots for reconnaissance purposes and aiding in forecasting and prevention of emergency situations. The mobile UAV e ...
... nodes on the ground. The UAVs can broadcast link state information efficiently for improving routing performance. The research project AirShield [3] proposes to use autonomous flying robots for reconnaissance purposes and aiding in forecasting and prevention of emergency situations. The mobile UAV e ...
ppt
... Overlay Access Point (OAP): A node that participates on the overlay that accepts traffic from “approved” source points that wish to use the overlay to reach a given destination. Source points: A node on or off the overlay that wishes to send a (legitimate) transmission to a target. It is assumed tha ...
... Overlay Access Point (OAP): A node that participates on the overlay that accepts traffic from “approved” source points that wish to use the overlay to reach a given destination. Source points: A node on or off the overlay that wishes to send a (legitimate) transmission to a target. It is assumed tha ...
OPNsense Brochure
... Netflow is a monitoring feature, invented by Cisco, it is implemented in the FreeBSD kernel with ng_netflow (Netgraph). Since Netgraph is a kernel implementation it is very fast with little overhead compared to softflowd or pfflowd. While many monitoring solutions such as Nagios, Cacti and vnstat on ...
... Netflow is a monitoring feature, invented by Cisco, it is implemented in the FreeBSD kernel with ng_netflow (Netgraph). Since Netgraph is a kernel implementation it is very fast with little overhead compared to softflowd or pfflowd. While many monitoring solutions such as Nagios, Cacti and vnstat on ...
Cyberespionage campaign hits energy companies
... US and European companies, mainly in the energy sector. The group managed to install a remote access tool (RAT) in computers used for running Industrial Control Systems (ICS), and to harvest data from the infected machines utilizing a payload designed for a speci c industrial protocol. According to ...
... US and European companies, mainly in the energy sector. The group managed to install a remote access tool (RAT) in computers used for running Industrial Control Systems (ICS), and to harvest data from the infected machines utilizing a payload designed for a speci c industrial protocol. According to ...
08 Common Network Services
... • Access rights can be granted by any user • Trust is transitive – Access to one host gives access to all of its trusted partners – Attackers will try to deposit an appropriate entry into /etc/hosts.equiv or some user’s .rhosts file • Host names are authenticated via IP addresses – IP spoofing and D ...
... • Access rights can be granted by any user • Trust is transitive – Access to one host gives access to all of its trusted partners – Attackers will try to deposit an appropriate entry into /etc/hosts.equiv or some user’s .rhosts file • Host names are authenticated via IP addresses – IP spoofing and D ...
Network Security
... • Previous example: router has external IP address 62.49.147.170 and two internal addresses: 192.168.0.254 and 192.168.1.254: – It acts as default router for two small, private networks. ...
... • Previous example: router has external IP address 62.49.147.170 and two internal addresses: 192.168.0.254 and 192.168.1.254: – It acts as default router for two small, private networks. ...
Running virtualized native drivers in User Mode Linux
... the same results could have been obtained without the hassle of emulating in software the behaviour of a real hardware card. It would have been sufficient to code a UML specific driver just like the already existing tun/tap Ethernet driver. This would require, however, the complete rewriting of the ...
... the same results could have been obtained without the hassle of emulating in software the behaviour of a real hardware card. It would have been sufficient to code a UML specific driver just like the already existing tun/tap Ethernet driver. This would require, however, the complete rewriting of the ...
Slide 1
... DNS services should not be used within the AMI system. Although they are easy to use and implement, DNS services have a history of being highly susceptible to compromise. The AMI system must also be protected against unauthorized changes to the software in the device. In other words, it must employ ...
... DNS services should not be used within the AMI system. Although they are easy to use and implement, DNS services have a history of being highly susceptible to compromise. The AMI system must also be protected against unauthorized changes to the software in the device. In other words, it must employ ...
Broadband Roaming over DVB Networks
... with the Home Agent through the Foreign Agent of their choice • Following registration, all traffic from fixed and mobile hosts addressed to the Mobile Networks is routed to the Home Agent, and then double-tunnelled (using IP-IP encapsulation): – Outer Tunnel: from Home Agent to Foreign Agent – Inne ...
... with the Home Agent through the Foreign Agent of their choice • Following registration, all traffic from fixed and mobile hosts addressed to the Mobile Networks is routed to the Home Agent, and then double-tunnelled (using IP-IP encapsulation): – Outer Tunnel: from Home Agent to Foreign Agent – Inne ...
Peakflow SP
... Traffic of specific types exceeding what should be normal for a network. Misuse anomalies cover the following types of traffic: ...
... Traffic of specific types exceeding what should be normal for a network. Misuse anomalies cover the following types of traffic: ...
Defense In Depth
... cracking. Passwords should not be dictionary words or names. They also should not be words or names with numbers concatenated to them. A strong password will be a mix of upper and lower case alpha characters, special characters (i.e. ~,!,@,#,$,%,^) and numbers. Passwords also need to be something th ...
... cracking. Passwords should not be dictionary words or names. They also should not be words or names with numbers concatenated to them. A strong password will be a mix of upper and lower case alpha characters, special characters (i.e. ~,!,@,#,$,%,^) and numbers. Passwords also need to be something th ...
Wireless security
![](https://commons.wikimedia.org/wiki/Special:FilePath/ADSL_router_with_Wi-Fi_(802.11_b-g).jpg?width=300)
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.