Linux System Administration
SSH - Secure Shell
SSH - Host Keys
OpenSSH has three different host key sets: one for protocol version 1, and two for protocol 2.
Each set has a
public key
. This has a .
pub
file extension.
Each set has a
private key
. This has no extension.
If someone gets your host's private key, SSH provides no protection against password snooping.
SSH version 1 has RSA keys.
SSH version 2 has RSA and DSA keys.
RSA and DSA are public ke cryptography algorithms.
SSH version 2 supplies both sets, as there is a debate as to which version is better.
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