ccna electronic book 7th edition.pdf

ccna electronic book 7th edition.pdf

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The best way to test network security is to try to attack your own system on a regular basis. It is best to find out the security holes before the intruder finds it. In order to control the server, the Trojan must be started together when the system starts, so it must sneak into the startup configuration files, such as Win.ini , System.ini ,ccna electronic book 7th edition.pdf, Winstart.bat , startup groups, and other files or startup items in the registry. Describe the destination ( internal or external ) network IP address. Use 0.0.0.0 to specify the default route ( all target networks ) . You can abbreviate the IP address 0.0.0.0 as 0 The hacker enters a string into the attacked program, and the program puts the string in the buffer. The data contained in this string is a sequence of instructions that can be run on the attacked hardware platform. Here the hacker uses the buffer of the attacked program to store the attack code. The specific method has the following two differences. (3 ) Modulo 216+1 multiplication operation, 0 corresponds to 216 . This is because the malicious webpage has modified some key values ​​set by IE in the registry (DWORD value is not optional when the value is 1 ) . The solution is as follows: Continued 3.2.2 IDEA algorithm Based on Windows Trojans commonly used method to automatically load when you start the application, including the following. Table 5 - 3 Rule number two 2) Manual removal plan of shock wave virus The digital certificates provided by some bank CA certification centers have a validity period of one or two years. After the digital certificate expires, you will no longer be able to access the online banking transaction system. Therefore, you need to replace the new certificate in time before the certificate expires. In other maturity certificate in two ways: When you login to online banking, online banking system will prompt you for a certificate is about to expire, to be CA self-site replacement, and provide CA site URL hyperlink, simply click the URL to CA The site downloads the new certificate in real time, and the CN of the customer’s personal certificate will not change after the certificate is renewed ; if the certificate has expired, you can only apply for a certificate renewal at a special site provided by the CA center . For specific steps, please refer to the relevant information on the external webpage of the online banking. Description.

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