cisco ccna guide pdf

cisco ccna guide pdf

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The following describes the UNIX password algorithm and the source code for cracking. When starting the computer, hold down the Ctrl key or press the F8 key when Start Windows 98 … pops up , and then select " Command Prompt Only ". Bypass control (4) The firewall, as a "police" to prevent the occurrence of undesirable phenomena , can implement and strengthen the security strategy of the network. 2.1.5 Security Vulnerabilities of Operating System Some malicious sites, free or shareware, spam or other purposes in order to promote themselves to the seductive picture or click prizes as bait to trick users click on the page to hide malicious programs to modify the user registry,cisco ccna guide pdf, the IE tampering It's beyond recognition. (4) Capture screen: view the screen of the monitored terminal ( equivalent to executing "control commands" → "capture screen " → " view screen " command in the command console ) . C : WINDOWS>tracert 202.96.102.4 123.45.0.0/16 5.2 Types of firewalls C: 3) From the perspective of network security, the firewall must meet the following requirements. (3) open remote or local file: Right-click the file to be opened, the shortcut menu to perform "remote open" or the " open " command, if the executable file for the implementation of the "Remote Open" command, you can further set the file The operating mode and operating parameters ( operating parameters can be empty ) . For detailed algorithm learning, you can refer to other books or search online, so I won’t repeat them here. (10) When the virus detects that the current system month is after August or the date is after the 15th , it will launch a denial of service attack on Microsoft's update site windows update.com , making the update site of the Microsoft website unable to provide services to users. Figure 9.1 SSL working process When hackers detect enough system information and understand the security weaknesses of the system, they will launch attacks. Of course, they will use different attack methods according to different network structures and different system conditions. Generally, the ultimate goal of a hacker attack is to be able to control the target system and steal the confidential files in it, but not every time the hacker attacks the target host, the hacker can also launch a denial of service attack and other interference. Attacks make the system unable to work normally. Some specific attack methods used by hackers are described in detail in the following hacker attack methods, so I won't go into details here.

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Latest Cisco CCNA 200-301 Dumps

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