Hands-On AWS Penetration Testing with Kali Linux

Hardening and installing prerequisites

Setting up remote access to a VM can be a risky affair, hence it's recommended that we install and set up a firewall and IP blacklisting services to protect against brute-forcing attacks and similar attacks on the internet. The services we will install are ufw and fail2ban. They are pretty easy to set up:

1. All you need to do is run the following command:

sudo apt-get install ufw fail2ban

2. Once we have installed the ufw firewall, we need to allow the two ports that we will be using for remote access: 22 for SSH and 55555 for Guacamole. So we need to run the following commands:

sudo ufw allow 22sudo ufw allow 55555

3. Once that's done, we need to restart the ufw service:

4. Next, we need to install the ...