From the course: Protecting Your Network with Open Source Software
Join today to access over 22,500 courses taught by industry experts or purchase this course individually.
Testing the second adapter
From the course: Protecting Your Network with Open Source Software
Testing the second adapter
- [Instructor] Once we set up our Ubuntu host as a router, the next step is to connect another host to our Ubuntu router host to see if it functions as a router properly. I have an Ubuntu VM already up and running. Let's type ifconfig to check the current network settings. Press Enter. The IP address is 10.0.0.4, therefore it belongs to the 10.0.0 subnet as shown in this diagram. We want this host to be behind our router belonging to the 10.0.1 subnet. In Azure, to change the subnet of a host, go to your VM page. Select Networking and your network interface. Choose IP Configurations. Pick the 10.0.1 subnet from the dropdown box. Click on Save. I'm using Dynamic Host Configuration Protocol, or DHCP, for my VMs, therefore DHCP automatically assigns a new IP to the network interface card of my Ubuntu host when I switch the subnet. Let's check if I have a new IP. Type ifconfig, press Enter. The IP is now…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.
Contents
-
-
-
-
-
Netfilter and iptables3m
-
Setting up a host firewall using iptables5m 24s
-
Automating Netfilter configuration5m 17s
-
Understanding hosts as routers2m 30s
-
Adding a network adapter3m 49s
-
Testing the second adapter2m 20s
-
Setting up IP forwarding3m 55s
-
Changing Netfilter settings6m 37s
-
Testing the router1m 21s
-
-
-
-
-
-