In this learning activity, you will need to create a script that modifies the routing table, to prohibit connectivity to google.com. You’ll also add an entry to use 10.0.1.20 as the gateway for the 10.0.8.0/24 subnet.
Learning Objectives
Successfully complete this lab by achieving the following learning objectives:
- View the routing table, and prohibit connectivity to google.com.
You can view the routing table using the following command:
ip route showYou should install the
bind-utilspackage which includes thehostcommand, to get the IPs associated with google.com.host google.comOnce you have the IP address(es), you can prohibit connectivity to them using the following command:
ip route add prohibit <IP_ADDRESS>- Add an entry for the 10.0.8.0/24 network to use 10.0.1.20 as the gateway.
Add the following entry:
ip route add 10.0.8.0/24 via 10.0.1.20- Write a script that creates both entries.
Using a text editor like vim, create and edit the file
/home/cloud_user/routes.sh:#!/bin/bash ip route add prohibit <GOOGLE_IP> ip route add 10.0.8.0/24 via 10.0.1.20
