Configure New SSH Keys on Apstra Server

Release: Juniper Apstra 4.1

date_range 19-Jul-24

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You can replace SSH host keys on new or existing Apstra server VMs.

SSH into the Apstra server as user admin. (ssh admin@<apstra-server-ip> where <apstra-server-ip> is the IP address of the Astra server.)
Run the command sudo rm /etc/ssh/ssh_host* to remove SSH host keys.

Run the command sudo dpkg-reconfigure openssh-server to configure new SSH host keys.

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admin@aos-server:~$ sudo dpkg-reconfigure openssh-server
Creating SSH2 RSA key; this may take some time ...
2048 SHA256:EWRFcs4V6BmOILR3T2Psxng1uE0qXQ/z9IKkXrnLpJs root@aos-server (RSA)
Creating SSH2 ECDSA key; this may take some time ...
256 SHA256:THaXEia8VW6Jfw6OBXFegu1Cav0zcGSVOy9RkNOPxf4 root@aos-server (ECDSA)
Creating SSH2 ED25519 key; this may take some time ...
256 SHA256:0HOn0nnF+7oRaF5HggI4vWeyxT+UNsHcbvNpBJdaKhQ root@aos-server (ED25519)
admin@aos-server:~$ sudo dpkg-reconfigure openssh-server

To restart the SSH server process, run the command sudo systemctl restart ssh.

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Juniper Apstra Installation and Upgrade Guide

Configure New SSH Keys on Apstra Server

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