Title: Basic Network and Firewall Connectivity & Initial Testing
This exercise involves building a virtual small business network to support Beta Corp’s international operations. To support. The network consists of 1) management clients, 2) enterprise clients, 3) pfSense firewalls, and 4) servers. For simplicity, the “server” required for this exercise is simply an Ubuntu desktop VM. If you can run this on an Ubuntu desktop computer, you should be able to run it on a Linux-based server as well.
In this exercise, you will configure a pfSense router/firewall to allow management clients to access the server’s management services over the network. “Regular” corporate customers have different privileges. Both access a single remote server, but in different ways. In this exercise, you will create firewall rules for your pfSense router/firewall as part of your asset protection strategy.
Beta Corporation is a small software development consulting company. Regular corporate users are on one subnet and IT department traffic is on another subnet. Both are routed through a FreeBSD router/firewall (pfSense) to a multifunctional server. This small business provides all the necessary services on a single server, so security is very important. It’s your job to properly configure your firewall so that your company’s resources are properly protected and critical services function.
Credentials:
This lab requires 3 Ubuntu Linux virtual machines and 1 pfSense virtual machine. Note that you will need
Internet access while you download software onto the Ubuntu machines. I recommend:
Admin Client
Configure the Admin Client’s Network Settings:
sudo nano /etc/network/interfaces
auto lo
iface lo inet loopback
auto enp0s3
iface enp0s3 inet static
address 7.7.7.7/28
post-up ip route add default via 7.7.7.1
(you should see the network interface with the IP & netmask you set above)
Use the following command to view the routing table: ip route
sudo nano /etc/hosts
Append the following line to this file and save it 5.5.5.5 web-server
Corporate Client
Configure the Corporate Client’s Network Settings:
sudo nano /etc/network/interfaces
auto lo
iface lo inet loopback
auto enp0s3
iface enp0s3 inet static
address 8.8.8.8/28
post-up ip route add default via 8.8.8.1
ip a (you should see the network interface with the IP & netmask you set above)
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