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You have recently taken over at a small company after the pervious IT person was fired. Since the IT person was terminated they are unwilling to share information with you. It is your job to determine how things work so you can answer your boss's questions. Your boss would like to make sure the old IT person no longer has access into the network. Review the firewall rules and document what each rule does in plain English so your boss can understand it. The following rules are from the firewall at 10.0.1.1. 1) 2):INPUT DROP 3):OUTPUT ACCEPT 4) 5) -A INPUT -p tcp --dport 22 -i eth1 -m state --state NEW,ESTABLISHED -j ACCEPT 6) -A OUTPUT -s 10.0.3.0/24 -j ACCEPT 7) -A INPUT -i eth1 -p tcp -m multiport --dports 80,443 -m state --state NEW, ESTABLISHED -j ACCEPT 8) -I INPUT 2 -j ACCEPT 9) -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j LOG --log-prefix 'INBOUND' --log-level 7 10) -A INPUT -p icmp -j ACCEPT 11) -A INPUT -p icmp -j LOG -log-prefix 'ICMP INBOUND' --log-level 7 12) COMMIT

You have recently taken over at a small company after the pervious IT person was fired. Since the IT person was terminated they are unwilling to share information with you. It is your job to determine how things work so you can answer your boss's questions. Your boss would like to make sure the old IT person no longer has access into the network. Review the firewall rules and document what each rule does in plain English so your boss can understand it. The following rules are from the firewall at 10.0.1.1. 1) 2):INPUT DROP 3):OUTPUT ACCEPT 4) 5) -A INPUT -p tcp --dport 22 -i eth1 -m state --state NEW,ESTABLISHED -j ACCEPT 6) -A OUTPUT -s 10.0.3.0/24 -j ACCEPT 7) -A INPUT -i eth1 -p tcp -m multiport --dports 80,443 -m state --state NEW, ESTABLISHED -j ACCEPT 8) -I INPUT 2 -j ACCEPT 9) -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j LOG --log-prefix 'INBOUND' --log-level 7 10) -A INPUT -p icmp -j ACCEPT 11) -A INPUT -p icmp -j LOG -log-prefix 'ICMP INBOUND' --log-level 7 12) COMMIT

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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You have recently taken over at a small company after the pervious IT person was fired. Since the IT person was terminated they are unwilling to share information with you. It is your job to determine how things work so you can answer your boss's questions. Your boss would like to make sure the old IT person no longer has access into the network. Review the firewall rules and document what each rule does in plain English so your boss can understand it. The following rules are from the firewall at 10.0.1.1. 1) 2) :INPUT DROP 3) :OUTPUT ACCEPT 4) 5) -A INPUT -p tcp --dport 22 -i eth1 -m state --state NEW,ESTABLISHED -j ACCEPT 6) -A OUTPUT -s 10.0.3.0/24 -j ACCEPT 7) -A INPUT -i eth1 -p tcp -m multiport --dports 80,443 -m state --state NEW, ESTABLISHED -j ACCEPT 8) -I INPUT 2 -j ACCEPT 9) -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW, ESTABLISHED -j LOG --log-prefix 'INBOUND' --log-level 7 10) -A INPUT -p icmp -j ACCEPT 11) -A INPUT -p icmp -j LOG -log-prefix 'ICMP INBOUND' --log-level 7 12) COMMIT
Transcribed Image Text:You have recently taken over at a small company after the pervious IT person was fired. Since the IT person was terminated they are unwilling to share information with you. It is your job to determine how things work so you can answer your boss's questions. Your boss would like to make sure the old IT person no longer has access into the network. Review the firewall rules and document what each rule does in plain English so your boss can understand it. The following rules are from the firewall at 10.0.1.1. 1) 2) :INPUT DROP 3) :OUTPUT ACCEPT 4) 5) -A INPUT -p tcp --dport 22 -i eth1 -m state --state NEW,ESTABLISHED -j ACCEPT 6) -A OUTPUT -s 10.0.3.0/24 -j ACCEPT 7) -A INPUT -i eth1 -p tcp -m multiport --dports 80,443 -m state --state NEW, ESTABLISHED -j ACCEPT 8) -I INPUT 2 -j ACCEPT 9) -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW, ESTABLISHED -j LOG --log-prefix 'INBOUND' --log-level 7 10) -A INPUT -p icmp -j ACCEPT 11) -A INPUT -p icmp -j LOG -log-prefix 'ICMP INBOUND' --log-level 7 12) COMMIT
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