chapter 8 ccna 2

chapter 8 ccna 2

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With the static command allows us to a specific internal IP to set up a permanent global address IP address. This will be designated as an entry interface to create a lower security level, so that they can enter a higher level of security refers to a given interface. Password authentication confirmation, data encryption confirmation, communication "handshake" protocol, digital signature and notary identification, and identification by using entity characteristics or ownership forms ( such as language, fingerprints, identification card identification, etc. ) . 1) Write correct code 5. Briefly describe the common methods of detecting computer viruses. 1.4 Major threats to network security (7) Try not to start the computer with a floppy disk. 2. SMTP processing 9.2 Security measures for e-commerce 9.2 Security measures for e-commerce Host port RSET (3) Briefly describe the main functions and types of firewalls. 5.1 Overview of Network Firewall (5) Click the "Find" button to start the job search. If a large number of executable files that meet the search characteristics are displayed during the search , it means that the computer has been infected with the CIH virus. The sender generates a pair of keys, uses the public key to encrypt the secret key ( control word ) , and then transmits it to the receiver through the network. (1) Leak host system information to help hackers invade. If the first 1 and No. 2 bit is set to " .. " To indicate when the next time you log in, the password must be changed. Then the password management program will remove the password validity period,chapter 8 ccna 2, so that the user will not be restricted by the password validity period in the future. There are many factors that affect computer network security, such as intentional or unintentional, man-made or non-man-made, etc. The illegal use of network system resources by outside hackers is an important factor affecting computer network security. In summary, the threats to network security mainly include the following aspects. 1) Integrated into the program The software is mainly used for remote monitoring, and its specific functions include the following aspects. Man-made malicious attacks are highly concealed, not easy to cause suspicion, and the technical difficulty of committing crimes is high. Under normal circumstances, the evidence of the crime exists in the data and information of the software, and it is difficult to obtain detection evidence without professional knowledge. Moreover, the perpetrator can easily destroy the evidence, and the scene of a computer crime is not as obvious as a traditional crime scene.

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