ccna devnet book pdf

ccna devnet book pdf

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Used to track the path taken by a message from one computer to another, such as from your computer to another computer. In the DOS environment, the command is as follows: (2) On the server side, the administrator generates a certificate for the user. outside Put the following code in the < head> < Head > mark of the HTML code of the webpage , you can block the right button and encrypt the webpage. 1.3.2 Security Issues in Operating System IF (Event . Button == 2) {Alert ( ' allowed to view source ')} (6) Allow DNS access. Allow Internet users to access the internal DNS server. 2) The authenticity of the transaction ② Execute "Start" → "Program" → "Accessories" → "Communication" → "Hyper Terminal" command. (3) TCP FIN scan 6. The registry is disabled after browsing the web 4) Step 4 : Hide the IP address Technically, there are many ways to achieve logical isolation, but the main thing is to use firewalls. The development of firewalls is mainly reflected in performance, security and functions. In fact, these three are contradictory and restrict each other. Technology with multiple functions and good security often affects its performance; multiple functions also affect the security of the system. The "Electronic Signature Law" stipulates: "A secure electronic signature has the same effect as a handwritten signature or stamp." Universal CA runs in the Windows environment, shields various complex operations in the background, the front-end interface is simple, and supports batch operations of requests and certificates, and can automatically revoke expired certificates. 10) Trusted recovery As mentioned earlier, this inherent problem comes from the most useful feature of public key cryptography -everyone can use the public key. However, the algorithm can not solve this problem, there are two main measures: one is a good use of public-key protocols to ensure the information decryption process entity does not generate any other entity, and does not know anything about their own signature information; the other One is never random strangers sent documents signature, the first to use signature One-Way Hash Function for text files do HASH processing, or use a different signature algorithm. In addition to using public functions,ccna devnet book pdf, people also try to exploit attacks such as the decryption index or φ ( n ) .

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