PPT-Firewalls

DrPVLakshmi Information Technology GITGITAM University Firewalls Firewall is an effective means of protecting a local system or network of systems from network based security threats while at the same time affording access to outside world via . Defeating Firewalls : Sneaking Into Office Computers From Home4 of 6 quite reasonable as they expect it to be an http connection. To stop proxies from doing that, we need to keep transferring somethin Fifth Edition. by William Stallings. Chapter 12. Firewalls. The function of a strong position is to make the forces holding it practically unassailable.. . —. . On War. , . Carl Von Clausewitz. On the day that you take up your command, block the frontier passes, destroy the official tallies, and stop the passage of all emissaries.. Joe Polchinski. 1207.3123. , Ahmed Almheiri, Don Marolf, JP, Jamie Sully. In preparation, AMPS + . Douglas Stanford. Institute on Black Hole Horizons and Quantum Information. CERN, . 3/22/13. APOLOGY:  . James Landis. james.landis@owasp.org. The . AppSec. Profession. ~1980-????. GOAL. Project Goal. Existing ‘Taxonomies’. OWASP Top. Ten (2013). Focuses on just. the riskiest issue categories. Measures DREAD attributes. Chapter 3. Panko. and . Panko. Business Data Networks and Security, 10. th. Edition, Global Edition. Copyright © 2015 Pearson Education, Ltd.. Copyright © 2015 Pearson Education, Ltd. . Christmas Season 2013. Security Overview. Dr. . Natheer. . Khasawneh. Ziad . BashaBsheh. Data Center . Security Overview. Provides an overview of the typical security issues that affect DCs and presents the general guidelines to secure DC in a systematic manner that helps maintain as adequate security level as the DC evolves.. By Mark Kelly. Vceit.com. Data Security. Contents. Physical. and . software. controls for protecting . stored. and . communicated. data.. ‘Zits’. Data Security. Virtual teams often work with confidential or secret data. Guiding principle is . CIA. :. C. onfidentiality. I. ntegrity . A. vailability. Often, these are conflicting goals…. Some terminology. What are we up against?. High. Low. 1980. 1985. 1990. 1995. 2000. Security & Assurance. By Curtis . Pethley. Selection. Selecting a Firewall. There are 6 General Steps. . Identify your topology, applications, and protocol needs.. Analyze trust relationships within your organization.. Introduction. Technical controls – essential. Enforcing policy for many IT functions. Not involve direct human control. Improve organization’s ability to balance. Availability vs. increasing information’s levels of confidentiality and integrity. Managing Network Security:. FIREWALLS. 2. Management of Information Security, 5th Edition, © Cengage Learning. Firewalls. In InfoSec, a firewall is any device that prevents a specific type of information from moving between the outside world, known as the untrusted network (e.g., the Internet), and the inside world, known as the trusted network. Introduction. Technical controls – essential. Enforcing policy for many IT functions. Not involve direct human control. Improve organization’s ability to balance. Availability vs. increasing information’s levels of confidentiality and integrity. Theo Benson. IP Options of Concern. Options may change the length of the IP header, and may require additional processing, putting load on routers/firewalls.. IP strict/loose source routing: source specifies a series of intermediate destinations; might be used to bypass security devices, might cost ISPs transit fees. A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks.. System designed to prevent unauthorized access to or from a private network.