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A Cloud Guru

Working with Static Routes

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.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Nov 14, 2018

Challenge

View the routing table, and prohibit connectivity to google.com.

You can view the routing table using the following command:

ip route show

You should install the bind-utils package which includes the host command, to get the IPs associated with google.com.

host google.com

Once you have the IP address(es), you can prohibit connectivity to them using the following command:

ip route add prohibit <IP_ADDRESS>
Challenge

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
Challenge

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
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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