-Set these parameters Enable AAA Enable tacacs+ host: 204.215.2.9 Tacacs+ key: cisco AAA default authentication login: tacacs+ AAA default PPP authentication: tacacs+ AAA default authorization network: tacacs+ AAA default authorization exec: tacacs+
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- Consider the following simple authentication dialogue: C → AS: IDc II Pc II IDv AS → C: Ticket C → V: IDc II Ticket; Ticket = E(Kv, [IDc II ADc II IDv]) Where: C = client AS = authentication server V = server IDc = identifier of user on C IDv = identifier of V Pc = password of user on C ADc = network address of C Kv = secret encryption key shared by AS and V ***Explain the process of this protocol.5, For the first mode of Message Authentication code (MAC), which description is NOT correct? The key used in this mode is for message encryption. This mode cannot protect message confidentiality. The receiver is able to detect malicious message modification by checking the MAC. The attacker who does not know the key cannot calculate the MAC.Assume a web server can only receive TCP connections on port 80 (HTTP) and 22 (SSH), but not on any other ports. The web server can only establish connection to a database server hosted on private IP 192.168.100.100 on port 3000, but to no other machines inside or outside the network. Imagine this web server is running Linux, and we’re using iptables to define host-based firewall rules for it. Show the set of iptables commands to install necessary rules for this security policy.
- Write a PHP script that could be used to connect to MYSQL database named gctudb running on a web server with IP address "192.168.10.100". Assume the user name is nuksoft and the password is makadcode. Remember to close your connection explicitly.Look at the following IP scope. Is this a valid scope (YES/NO)?If NO. How would you correct the scope.IP SCOPE: 192.268.4.50 – 272Subnet Mask 255.255.255.0Gateway 192.168.4.1Show how to implement native authentication and authorization services when a web client wants access to protected web server resources. Which two parameters support layered protocols? Give examples to back up your point.
- The following is output from the show ip eigrp topology command. Does this output show a feasible successor? How can you tell? P 192.168.10.4 / 30, 1 successors, FD is 3523840 via 192.168.10.10 (3523840 / 2169856), Serial0 / 1 via 172.16.3.1 (41024000 / 2169856), Serial0 / 0An attacker tries to do banner grabbing on a remote web server and executes the following command:$ nmap -sV hackme.com -p 80 He gets the following output:Starting Nmap 7.90 ( http://nmap.org ) at 2020-09-26 22:47 ESTNmap scan report for hackme.com (108.58.137.114)Host is up (0.048s latency).PORT STATE SERVICE VERSION80/tcp open http Apache httpdService detection performed. Please report any incorrect results at http://nmap.org/submit/.Nmap done: 1 IP address (1 host up) scanned in 7.36 seconds What did the hacker accomplish? nmap can’t retrieve the version number of any running remote service. The hacker successfully completed the banner grabbing. The hacker should have used nmap -O host.domain.com. The hacker failed to do banner grabbing as he didn’t get the version of the Apache web server.1. Which of the following is not usually implemented in the server-side code? a. Routing Code b. All of these are usually implemented in Server-Side Code c. Authentication Logic Code d. User Interface Code 2. True or False. The fetch method can only be used to make GET requests. a. True b. False 3. True or False. Node.js is a asynchronous event-driven framework. This means it can only handle one event at a time a.True b. False 4. When using the router level middleware in express, what must match for the Handler Method to be executed? a. None of these b. Path and URL c. Request and Response d. Method and Path
- Python language 1 - What modification(s) can you do to the code #1 and code #2 to make the server and client use the TCP Protocol?2 - Modify the server code to send an error to the client if the file requested does not exist.3 - Modify the server code to send an error to the client if the line requested does not exist.4 - Modify the client code to request the first line if the client didn't write a line number in their request. Example req = 'book2.txt'Tasks: Part A: Develop a UDP/IP server program in java that waits for clients to server. The server responds to the client with one of the following based on client’s request: Export secret key generated using KeyGenerator Export Text and Message Digest Export Text and Digital Signature Send original text for the encrypted text received from client Part B: Develop a UDP/IP client program that make request secret key, Message Digest, Digital Signature and original text by sending the encrypted text to server program developed (in Part A). This program will display the various objects received from server on its console.Explanation of how to implement native authentication and authorization services for gaining access to protected web server resources. Which of the following provides support for layered protocols? Provide concrete examples to support your assertions.