Network Security: An Executive Overview pptx

... intranets, and extranets enable fast and effective communication between employees and partners. However, such communication and efficiency can of course be impeded by the effects of a network ... previewing private financial, patient, or human resources data, are far more serious, can be damaging to reputations, and can cause financial liability for a company. What can these enemies d...

Ngày tải lên: 14/03/2014, 22:20

... An Ontology for Network Security Attacks Andrew Simmonds 1 , Peter Sandilands 1 , Louis van Ekert 1 1 Faculty of IT, University of Technology ... small-scale, redundant and compartmentalized, and avoid a Single Point Of Failure (SPOF). 5. Network Security Attacks Ontology This is a proposal to initiate the design of an ontology for network security ... {simmonds, psandy, eker...

Ngày tải lên: 14/02/2014, 16:20

... Gathering and Network Reconnaissance By this stage you should already be aware of the target organisations networks and hosts and their IP addresses. The information gathering and network reconnaissance ... mis-cds.com, and the testbed.org hosts and network range may belong to another organisation entirely. Certain security-conscious organisations filter ICMP to mission-critical hosts a...

Ngày tải lên: 05/03/2014, 21:20

... network analyzer. A network analyzer can be either a dedicated hardware tool or a software program that runs on an existing system. Network analyzer software can be purchased for less than $1,000 ... a network analyzer can be monitoring your network, and you would have no means of detecting its presence without tracing cables and counting hub and switch ports. It is also possib...

Ngày tải lên: 11/12/2013, 03:15

... Worms Viruses & Worms Data Sniffing and Spoofing Data Sniffing and Spoofing Malicious code & Trojan Malicious code & Trojan Port Scanning & Probing Port Scanning & Probing Wireless ... Information of Hacker Gathering Information of Hacker Trojan and Backdoor Trojan and Backdoor Sniffers Sniffers Firewall and IDS Firewall and IDS Countermeasure Countermeasure www....

Ngày tải lên: 15/12/2013, 15:15

... attacker researches the target organization. He may obtain all public information about an organization and its employees and complete port scans on all computers and devices that are accessible ... Important 16 Module 3: Identifying Threats to Network Security Lab A: Identifying Threats to Network Security Lab Questions and Answers Answers may vary. The following are possibl...

Ngày tải lên: 21/12/2013, 19:15

... that change port numbers in a session. So how do we handle FTP? Normal mode FTP is a multi-channel operation that uses one channel for control and the second channel for data trans- mission, and ... the server does not perform an active open to the client. The client uses the com- mand channel to exchange port information and then performs an open to the server on an agreed port. So, bo...

Ngày tải lên: 24/01/2014, 19:20

... Protocol: Tunneling Past Network Security and Other Security Implications Dr. James Hoagland Principal Security Researcher Symantec Advanced Threat Research SYMANTEC ADVANCED THREAT RESEARCH The ... attacker and that node, or that node and the relay, at least not any that cannot be source-routed around, and (3) the relay does not pay attention to the fact that the IPv6 packet it is transf...

Ngày tải lên: 14/02/2014, 08:20

... off-line and the engine has to be re-run on the changed input. Our model of the network is dynamic and incremental, thus changes in policy are handled in a manner analogous to topological changes. Another ... as layer 3 switches, wireless lans, Virtual Private Networks, and Network Address Translators has been accompanied by a great change in the way networks are used and, hence, the scop...

Ngày tải lên: 14/02/2014, 16:20

... access control mechanism. With this mechanism, 5 a network manager can use either an open or a closed network. In an open network, anyone is permitted to join the network. In a closed network, only ... 2003, Apr. 2003. [8] M. Buddhikot and G. Chandranmenon and Seungjae Han and Yui-Wah Lee and S. Miller and L. Salgarelli, “Design and Implementation of a WLAN/CDMA2000 Interworking A...

Ngày tải lên: 14/02/2014, 16:20