ccna 1-4 pdf

ccna 1-4 pdf

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(. 5) Client → Server : User cnhawk to Server provides cnhawk , the TGT and host / s ; Server according saved on the host host / s and user cnhawk to the authentication information cnhawk registration application. 16. The method of certificate expiration 2. Design and implementation of link encryption outbound 10 deny 192.168.3.4 255.255.255.255 www tcp apply(inside)20 outgoing _src no global [outside ]1 192.168.1.10-192.168.1.254 netmask 255.255.0.0 For factors such as a large amount of information,ccna 1-4 pdf, the HASH operation is generally performed first . Used to track the path taken by a message from one computer to another, such as from your computer to another computer. In the DOS environment, the command is as follows: (57 344B) . Encryption (the encrypt) , decryption (the decrypt) : in some way to hide masquerade process it is referred to the original encryption; phase inverse process is called decryption. In a large enterprise, in order to have a secret conversation between any two people, everyone needs to remember many keys. Kerberos provides a better solution. It makes the management and distribution of keys very easy. Although this method itself has certain shortcomings, it establishes a secure and trustworthy key distribution center. each user only know one Ge and KDC key session on it. Monitoring mode 4) Analyze system logs regularly ③ The virus does not reinfect. If the file contains Execute , it is considered infected. The digital certificate in X509 standard format provides authentication services based on public key certificates for users in the system. The digital certificate issued by the certification center is also called the digital certificate, which is the authoritative proof of the identity of entities participating in network communications and transactions. The services that the certification center can provide to users include receiving and reviewing user certificate applications, issuing and managing certificates, and providing certificates and CRL public access services. Currently, Universal CA is mainly used in conjunction with secure express delivery to ensure the confidentiality and information security of corporate internal e-mails .

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Latest Cisco CCNA 200-301 Dumps

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