A systems administrator is configuring new Linux systems and needs to enable passwordless authentication between two of the servers. Which of the following commands should the administrator use?

The correct answer is A. ssh-keygen -t rsa && ssh-copy-id -i ~/.ssh/id_rsa.pub john@server2. This command generates an SSH key pair and securely copies the public key to the remote server, enabling passwordless authentication by allowing key-based SSH login between the

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Options

Assh-keygen -t rsa && ssh-copy-id -i ~/.ssh/id_rsa.pub john@server2
Bssh-keyscan -t rsa && ssh-copy-id john@server2 -i ~/.ssh/key
Cssh-agent -i rsa && ssh-copy-id ~/.ssh/key john@server2
Dssh-add -t rsa && scp -rp ~/.ssh john@server2

How the community answered

(43 responses)

A
88% (38)
B
2% (1)
C
2% (1)
D
7% (3)

Explanation

This command generates an SSH key pair and securely copies the public key to the remote server, enabling passwordless authentication by allowing key-based SSH login between the

Topics

#SSH key authentication#ssh-keygen#ssh-copy-id#passwordless login

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