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Configure Key-based Authentication
General Information
SSH key based authentication (password-less).
SSH Key Creation and Distribution
Key based authentication involves a private and public key.
The private key stays on the source system, the public key is distributed to all remote systems.
Generate the private/public key pair.
ssh-keygen
- RSA is the default key type
- Prompted for file to save private key (~/.ssh/id_rsa)
- Prompted for file to save public key (~/.ssh/id_rsa.pub)
Copy the public key to a remote system
ssh-copy-id user@myserver
- Prompted for password login
- Next normal ssh login will be password-less