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- In Zigbee networks, which data fields are encrypted to ensure both the confidentiality and the integrity of the messages? Is/are there authentication performed on a particular data field or fields? Either before or after the actual encoding of the message, the message integrity code is created.Which encryption benchmark ensuresdata is not modified after it’s transmittedand before it’s received?Review the default firewall configuration ($ sudo iptables -L-n) and answer questions a. -C. Q1. What is the default policy on the INPUT, OUTPUT, and FORWARD chains in the default firewall configuration? Q2. What firewall rules are in place on the INPUT chain? Specify protocols and ports for which packets are allowed by the rules provided, and under what conditions those packets are allowed. Q3. What firewall rules are in place on the OUTPUT chain? Specify protocols and ports for which packets are allowed by the rules provided, and under what conditions those packets are allowed. Q4. What is the difference between a stateful and a stateless firewall? Is the Linux iptables utility stateful or stateless? Task 3: Modify the Firewall Configuration We will use two shell scripts to modify the firewall configuration. A script called '/etc/extingui.sh' will clear all firewall rules and set the default policy on the INPUT, OUTPUT, and FORWARD chains to ALLOW all traffic in and out of your…
- Which of the following is the most crucial function performed by a firewall?Presently, I am working on a packet-filtering program. Please tell me where I may get a set of guidelines to follow.When it is activated, what does it protect against exactly?The process of filtering packets is governed by a set of criteria that has been specified.As an attacker, you were able connect to a legacy Internet protocol and locate a file with sensitive information. Think about the root cause or root causes of this problem, then answer the following questions: • What are some root causes of storing personal information in clear text files? • What are some root causes of using an FTP service on the internal network? • What are some root causes of having anonymous login enabled on FTP service?
- What substitutions are there for message authentication?As a user, I want to be able to retrieve alert types for a specific org Id or tenant Id. Scenario Given I am logged in to the banking system and authorized to subscribe to alerts When I try to fetch alert types Then System should return me the list of alert types with http response code 200. Error Scenario 1 Given I am not logged in to the banking system When I try to fetch alert types Then System should return me an error response with http response code 401. Error Scenario 2 Given I am logged in to the banking system and authorized to subscribe to alerts When I try to fetch alert types but provided ord Id is invalid Then System should return me an error response with http response code 400. Error Scenario 3 Given I am not logged in to the banking system When I try to fetch alert types but Notifi service is unavailable/not responding Then System should return me the data/properties of alerts with http response code 503. Error Scenario 4 Given I am logged in to the banking…Which of the following is NOT a purpose of a firewall?I've started developing a software to filter packets. If so, could you perhaps outline some rules for me to adhere to?
- When it comes down to it, what does a firewall do best?My current project is a piece of software to filter data packets. Tell me the rules; what do you anticipate from me?Your firewall is configured to allow traffic to flow in and out of your network. GIVEN THE SETTING BELOW FOR THE FIREWALL RULE: Rule Name: DNS Rule Source IP: DNS / Source Port: 53 Destination IP: Any / Destination Port: * Protocol: Any What traffic flows through the firewall? IF SOME ACTIVE ATTACKS ARE ADDED FROM THE LIST. Is the rule sufficient to allow traffic to flow for a typical network? Why or why not? Do any of the active attacks now work against machines behind the firewall?For what does a firewall provide protection?Filtering packets follows a set of rules.