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Where does ssh-keygen put keys?
SSH keys for user authentication are usually stored in the user’s . ssh directory under the home directory. However, in enterprise environments, the location is often different. The default key file name depends on the algorithm, in this case id_rsa when using the default RSA algorithm.
Which file created by ssh-keygen contains the public key?
ssh/identity. pub file contains the RSA public key for authentication when you are using the SSH protocol version 1. A user should copy its contents in the $HOME/. ssh/authorized_keys file of the remote system where a user wants to log in using RSA authentication.
How to generate a key pair for SSH?
The other method is to password-protect your private key so that you are prompted for the password when authenticating (think two-factor authentication using both the private key and the password). To generate an SSH key pair, use the following command:
How to replace public key in ssh keygen?
During further SSH key pair generation, if you do not specify a unique file name, you are prompted for permission to overwrite the existing id_rsa and id_rsa.pub files. If you overwrite the existing id_rsa and id_rsa.pub files, you must then replace the old public key with the new one on ALL of the SSH servers that have your old public key.
How does SSH public key authentication work for remote systems?
Before you begin. Using SSH public-key authentication to connect to a remote system is a robust, more secure alternative to logging in with an account password or passphrase. SSH public-key authentication relies on asymmetric cryptographic algorithms that generate a pair of separate keys (i.e., a key pair), one “private” and the other “public”.
Do you need a passphrase to SSH to a remote system?
In the “Key passphrase” and “Confirm passphrase” text boxes, enter a passphrase to passphrase-protect your private key. If you don’t passphrase-protect your private key, anyone with access to your computer will be able to SSH (without being prompted for a passphrase) to your account on any remote system that has the corresponding public key.