TAILIEUCHUNG - Hacking / Hacking Exposed 6: Network Security Secrets & Solutions / McClure & Scambray / 161374-3

Using certificates also opens up for the possibility of removing the key transfer between Alice and Bob completely! This is an important feature when secure communication is being implemented between a large number of participants. This is because none of Bob’s ability to trust the public key he receives now depends on whether he is actually communicating with Alice or not. His ability to trust the key depends solely upon his trust relationship with the trusted third party. This means that Bob might actually be talking to a database that stores certificates for many users, much like a phone book. Bob can use his trusted third party’s. | Hacking Hacking Exposed 6 Network Security Secrets Solutions McClure Scambray 161374-3 PART II Hacking Hacking Exposed 6 Network Security Secrets Solutions McClure Scambray 161374-3 CASE STUDY DNS HIGH JINX-PWNING THE INTERNET If you have been under a rock for the last decade you may not be aware that our everyday Internet lives depend on a little mechanism called Domain Name System more affectionately known as DNS. Essentially DNS serves as a phone book for the Internet that allows easily remembered names like to be translated into not-so-easily remembered but machine-consumable IP addresses like . DNS also stores handy entries that allow email servers to be located and other useful components that help glue the very fabric of the Internet together. While DNS is an absolutely essential Internet service it is not without flaws. One such monumental flaw was publicly disclosed by noted researcher Dan Kaminsky in July 2008. This vulnerability was discovered by Dan some six months earlier. During the ensuing months Dan worked fastidiously with many of the largest technology providers and web properties to try to address this fix and come up with a solution. The coordination was a monumental effort on a scale that had not been seen before. So what was this vulnerability What did it mean to the security of the Internet Why so much secrecy and coordination in trying to resolve this day one Ah. where to begin. DNS tomfoolery has been taking place for many years. In fact our friend Joe Hacker has made a living out of poisoning the DNS cache or local storage of already retrieved names of vulnerable DNS servers. This tried and true method relies on helpful DNS servers that have recursion enabled that is a DNS server that is not authoritative for a specific domain being helpful enough to find out the target IP address on your behalf . . While not knowing the answer the target DNS server will find the server of truth for .

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• SmartProvisioning
• Main Window Panes
• SmartLSM Security Policies
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• Gateway Management
• Security Gateways
• Command Line Reference
• Dynamic Objects
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• VPNs and SmartLSM Security Gateways
• Managing UTM 1 Edge Gateways
• Managing Security Gateways
• Proxy Firewall
• Application Level Gateways
• Network security
• attack techniques
• defensive techniques
• operating system security
• application security
• security policy
• International Journal of Computer Networks and Communications Security
• Throughput analysis of single gateway association
• Wireless mesh network with multiple gateways
• Wireless mesh network
• Several available gateways
• Remote Access Clients
• Different Management Servers
• The Configuration File
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• SecureClient Features
• Endpoint Security VPN CLI
• Communicate
• Distance Vector Routing
• Link State Routing
• Network Layer
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