TAILIEUCHUNG - Code Hacking 1-2

derisory term meant something vastly different in its heyday. Hackers then, as now, were concerned about how things fit together, what makes things tick. Generally, many early hackers concerned themselves with understanding the nature of the telephone system, which encouraged the development of “blue boxes” and war dialers such as Ton Loc. Public bulletin boards (such as Prestel) had security flaws exposed and various services disrupted. Ten years later, teenagers with the same mindsets were “nuking” each other over IRC and discovering the inherent flaws in various implementations of Windows File Sharing. These teenagers of yesterday are now the security professionals. | If a hacker wants to exploit a particular Internet facing network, then one of the first jobs to do is some reconnaissance. Just because the organization in question has a Web site doesn’t necessarily mean that the best way in is through one of the Web servers. It is quite possible that there is another weaker machine available that is not listed publicly. From a hacker’s point of view, it would be really useful to get a list of all the machines in the domain with their names and IP addresses. This list might even contain the IP addresses that the Web server uses to communicate with the database server behind the DMZ’s second firewall. This is exactly the type of information that a zone transfer will supply. As previously stated, a zone transfer is run between the secondary and primary name servers to take a backup of the zone. If the primary name server is configured to only allow zone transfers from the secondary server, then this is harder to carry out, but until recently, the default on most DNS servers was to allow zone transfers from anywhere. A sysadmin may well choose to log all attempted zone transfers, as they often signal the start of something much bigger. Other than just asking for addresses, it is possible to perform various queries and tasks (such as zone transfers) against DNS servers. We examine tools, such as NSLookup, in

• An ninh - Bảo mật
• what makes things tick
• Witness Security’s vulnerabilities
• of the purchase price
• was reported by an
• the IDS system mentioned
• There is a wealth
• Public economics
• Lecture Public economics
• Taxation of wealth
• Personal wealth
• Wealth tax base
• Taxing personal net wealth
• Merger and acquisition
• Shareholders and wealth maximization
• Wealth maximization
• Shareholders’ wealth maximization
• Bank mergers
• Non standard debt
• Wealth management product
• Liquidity shock
• Shadow banking
• Wealth management products in China
• wealth
• happiness
• path
• Steve Rhode
• Myvesta
• lời hay ý đẹp
• 101 Quotations of Success and Wealth
• Mark Twain
• khoa học xã hội
• The 5 Wealth Secrets
• Infinite Abundance
• brandon I Cook
• sách dạy cách sống
• tài liệu về nghệ thuật sống
• The Wealth Of Nations
• chiến lược kinh doanh
• kế hoạc kinh doanh
• Adam Smith
• Beams Overhead
• Safe Haven
• Flowing Water
• Premier Wealth Enhancer
• Wealth Corner
• A Few Precautions
• Good Farming
• Natural History
• American Environmentalism
• Wealth of Nature
• Shaky Ground
• business
• Management
• Economics
• Business ethics
• Business mediator
• Business hours
• Financial economics
• Cooperative
• Accounting
• Business trip
• Business acumen
• List of business law topics
• Change management analyst
• Economic democracy
• A history of natural resources in Asia
• The wealth of nature
• Resources and state
• Forests and development
• Environments and livelihoods
• Risk Factors
• Infancy to Adulthood
• Pathogenesis of Acute
• Kidney Injury
• Oxidative and Nitrosative
• Ischemic Acute
• Environmental Law
• Natural Resources Law
• Natural Resource Wealth
• Political Regimes
• Crude Democracy
• emocratic regimes
• intelligence and shrewdness
• proved tactless
• young and aspiring village
• literary and scientific
• authorized publication
• Medical Physicists
• Professional Conduct
• Professional Standards
• Behavioral Finance
• Wealth Management
• Code of Ethics
• states
• britain
• united
• inequality
• financial
• David O Connell
• Acquiring Wealth
• busines
• business document
• business ebook
• business specific study
• business research
• Mr Moneybags
• baron
• fat cat
• magnate
• man of wealth
• moneyed man
• rich person
• wealthy individual
• wealthy person
• woman of means
• Fernando Urias
• Quỹ Sovereign wealth fund
• Quy mô các quỹ SWF
• Quỹ SWF Việt Nam
• Tiểu luận tài chính ngân hàng
• Tiểu luận tài chính
• Tiểu luận ngân hàng