At this point, you have a Raspberry Pi ready for remote management using SSH. This is good; however, the keys that are installed by default are extremely predictable with every other default installation for OpenSSH. Although this is optional, best practice is changing the default keys. After all, it would be embarrassing if your penetration testing machine got hacked.
Here are the steps to create a new SSH key for your Kali Linux system:
Note
Make sure you use a keyboard and console for the following steps. Do not attempt to perform the following steps over an existing SSH session.
Move the default SSH keys by typing the following into the terminal or command line:
cd /etc/ssh/ mkdir default_kali_keys mv ssh_host_* default_kali_keys/
Generate a new key by using the following command and watching the prompts:
dpkg-reconfigure openssh-server Creating SSH2 RSA key; this may take some time ... Creating SSH2 DSA key; this may take some time ... Creating SSH2 ECDSA...