In this tutorial you will learn about some advanced features of ssh-keygen on Ubuntu server, such as:
Larger Number of Bits
Removing or Changing the Passphrase
Code used during this tutorial:
# Overwrite (y/n)?
# A number cryptographic algorithms can be used to generate SSH keys, including RSA, DSA, and ECDSA.
ssh-keygen -t ecdsa
# Generate an SSH Key Pair with a Larger Number of Bits
# SSH keys are 2048 bits by default.
ssh-keygen -b 4096
# Removing or Changing the Passphrase on a Private Key
# Displaying the SSH Key Fingerprint
# bit-length of the key, the fingerprint, and account and host it was created for, and the algorithm used
# More info
Presentation used during this tutorial: