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 server. Execute this script as follows. $ sudo letc/extingui.sh (Enter your student password if required.]

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 server. Execute this script as follows. $ sudo letc/extingui.sh (Enter your student password if required.]

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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