ccna pdf routing and switching

ccna pdf routing and switching

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foreign_ip 2. SMTP processing Scanner optional remote TCP / IP different port services, and record answers given target, by this way method, you can collect a lot of variety of useful information about the target host ( for example: if you can use anonymous login, whether there may write the FTP directory, if you can use the Telnet , HTTP is used ROOT running or general user. ) ③ Date of sending the letter (Date) . Save the file and use the registry editor in the future,ccna pdf routing and switching, double-click registry.reg . 6.6.3 Code Red (Code Red) virus killing Method 1: Search for strings in executable files. The first 8 Chapter Web security services ② After the startup message appears, it prompts that the unauthorized mode is being used. Both of these are UNIX commands. Through these two commands, information about the user on the target computer can be collected. Using the Rusers command, the result is shown below. IE 's right-click menu more out of the "Welcome to ...... website ", "with QQ send the picture MMS " and other words like, which is common malicious modification. HKEY_CURRENT_USER\Software\ Microsoft\Internet of the registry Use eq and a port to allow or deny access to this port. For example, use eq ftp to allow or deny access to FTP only : conduit deny tcp host 192.168.1.1 eq ftp 209.165.201.1 . Use it and a port to allow or deny access to all ports smaller than the specified port. For example, use it 1025 to allow or deny access to well-known ports (1 to 1024) : conduit permit tcp host 192.168.1.1 it 1025 any . Action Most viruses generally do not attack the system immediately after infecting the system. They can be hidden in the system for a long time, and only when their specific conditions are met will their performance ( destruction ) module be activated to display the attack information or perform system damage. This state may remain for days, months or even years. The triggering conditions that cause computer viruses to attack are mainly as follows.

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