ccna 100-105 pdf

ccna 100-105 pdf

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7.3.3 Trojan Horse Common public key algorithms are listed below. If global_ip is a host, you can omit global_mask by specifying the host command parameter before global_ip . For example: conduit permit tcp host 209.165.201.0 eq ftp any . (1) Master the installation method of Rising anti-virus software. (3) The route command. ⑤ Enter authorization mode, enter configure terminal to enter configuration mode. The data encryption process is the process of transforming the original digital data ( plaintext ) into digital data ( ciphertext ) completely different from the plaintext according to the encryption algorithm through the encryption system . 2) Remove the network share and restart the computer If foreign_ip is a host, by the foreign_ip specified before the host command parameters, save a little foreign_mask . For example: conduit permit tcp any eq ftp host 209.165.201.2 . It is an important method for hackers to obtain the password of the system administrator through cracking, and then to control the server. There are many ways to crack the administrator password, the following are the 3 most common methods. Figure 5.4 Subnet filtering firewall structure 1. The design idea of ​​link encryption (1) All unauthorized access is forbidden. Based on this principle, the firewall to block all traffic, and then later want to open service gradually open, this is a very practical way, it can form a very safe environment,ccna 100-105 pdf, but it is easy to sacrifice safety for users At the price, the range of services that users can use is greatly restricted. global command parameters / options 6) Review When connecting a user ( for example, registering, changing the security level of the subject ) , the trusted computing base of the computer information system provides a trusted channel path between it and the user. The communication on the trusted path can be activated by the user or the computer information system, and is logically isolated from the communication on other paths, and can be distinguished correctly.

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Latest Cisco CCNA 200-301 Dumps

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