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!!!! Read before starting:     if ansible run as root >>>>> use root's   id_rsa   file !!!!

!!!! But if it's for Juniper, use the user account to log into the router !!!!

juniper.junos module does not send a file to the router, but use netconfig

1- create the Private key & Public key ( .pub) on the Client:       ssh-keygen
2- copy the public key to the server:               ssh-copy-id   or just a sftp
3- To set up SSH agent to avoid retyping passwords, you can do:
4- SSH test ( will ask for the passphrase once!)
5- check the Local keys:
6- check the Remote keys:

...

or just copy the file using  ( if ssh-copy-id not supported ):

scp id_rsa.pub  ansible@192.168.99.111:/var/home/ansible/

sftp ansible@192.168.99.11 ( then put /project/id_rsa.pub /var/home/ansible/id_rsa.pub ) 

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Code Block title sftp ansible@192.168.99.11 collapse true scp id_rsa.pub ansible@192.168.99.111:/var/home/ Password: id_rsa.pub 100% 520 77.8KB/s 00:00 or /project # sftp root@192ansible@192.168.99.11 root@192ansible@192.168.99.11's password: Connected to 192.168.99.11. sftp> put /var/home/.ssh/id_rsa.pub /var/roothome/.ssh/id_rsa.pub Uploading /var/roothome/.ssh/id_rsa.pub to /rootvar/home/.ssh/id_rsa.pub /rootvar/home/.ssh/id_rsa.pub 100% 386 502.9KB/s 0.4KB/s 00:00 sftp> ls .ssh/ id_rsa.pub sftp> pwd Remote working directory: /var/roothome/ sftp> exit /project # Code Block title after reboot After a reboot of the server the key may change, will need to be reload on the vMX!

Check:  after the ssh-copy-id, on the remote server: before/after   ( /root/.ddh  or /home/<username>/.ssh/ )

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ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyKQ+IXr/yiLt7N/SSh4++V8G3K0ZoU1Pi/M85D/5Gtuh6kq6DAqk/F/lUxc0QFZNVGB9r1fCyVtwuGVhxaImXbziB0gRbBG2uclwwH0bbQUDNm+MJ5QtXjRGCmelNa5DpzfdVI8MzkJN+TI+9PJm1CuuyfBIId554IiFOKsCmt8ORCkU4X+zdXkwZeMv+7jW9sqgYHbEU7m3DU1goJYko8mKMZabpkDUu1sxktGXgMEb3uanID5ViV4VSSxv8c9yVe896cXTmZBra0Dq2NU6WWRWe/fvcukeIO5knNiGTBCpbgpNZM3u11rYbzni/Nun7oKDqBg6+aO4EI0tDn4ZP /root/.ssh/id_rsa

/project # ssh-agent ash

passphrase is Juniper1 ( just because it's easier )

/project # ssh-add /root/.ssh/id_rsa
Enter passphrase for /root/.ssh/id_rsa:
Identity added: /root/.ssh/id_rsa (/root/.ssh/id_rsa)


/project # ssh-add -l
2048 SHA256:5O9zJxxxxxxxxxxxxxxxxxxxxxxxxxxxxxY /root/.ssh/id_rsa (RSA)


/project # ssh-add -L
ssh-rsa AAAAB3NzaC1yc2EAAxxxxxxxxxxxVLOqaPmqAbguhcbH /root/.ssh/id_rsa


/project # ssh root@192.168.99.11
--- JUNOS 12.1R1.9 built 2012-03-24 12:52:33 UTC
root@vMX1%

root@vMX1% ls /root/.ssh/
authorized_keys id_rsa.pub      known_hosts


set system root-authentication load-key-file /root/.ssh/id_rsa.pub

4- SSH test ( will ask for the passphrase once!)

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