Image Modified

!!!! 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:

...

passphrase = ansible123 Juniper1  ( same as: root/Juniper1, because is easier to remember) 

/project # ssh-keygen

!!!!!  default wullwill use: root 
!!!!!  and will put it in /root/.ssh/ 


/project # ssh-keygen -t rsa  -f /projectroot/.ssh/id_rsa -P ansible123Juniper1 -C ansibleroot
Generating public/private rsa key pair.
Your identification has been saved in /root/project.ssh/id_rsa.
Your public key has been saved in /projectroot/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:gjLEcnkqJ5bE6O/KBH5c1mGle6clTJNqDvQ+72CIy0w ansible5O9zJGCqTGXyjvintT4ZjzFD7P0pYz6bwWMRPFYtYeY root
The key's randomart image is:
+---[RSA 2048]----+
|         . =o     |
| |o. .    o . =. .    |
|oo=     .  * E. + +   |
|   | |o+.o..+ * .. =+oo       |
|
|++= .+.*S+ o     B +S.       |
|++oo+ *    . O..o. =.    |
 | | o E+ . * . +.O=..+      |
|o * . +. *o*=+ .    |
 | | | .o+o.=    ++=.o       |
+----[SHA256]-----+

Key 

on 

the vMX  ( once copied )

root@vMX1% ls /var/home/ansible/:
.ssh            id_rsa.pub

root@vMX1% more /var/home/ansible/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC/DLTV+Qzxxxxxxxxxxxxxx6egBTuBB+60d ansible

>>> notice the "root" at the end of the public key  <<<<<<<

/project # ls /root/.ssh/
id_rsa       id_rsa.pub   known_hosts
/project #

/project # more /root/.ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABxxxxxxxxxxxxxxxxxxxxxxxxxxAbguhcbH root
AAAAB3NzaC1yc2EAAAADAQABAAxxxxxxxxxxxxxxxxxxxx
root@fd9589e5bc79
/project # more /root/.ssh/id_rsa
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,F14E90E60C8CB07240DBA331EB53B03B
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-----END RSA PRIVATE KEY-----
/project #

RSA:

 -Asymmetric Encryption: Private and Public key
 -#Diffie-Hellman
 -2,048 bits (or 617 decimal digits )
 -Rivest-Shamir-Adleman

...

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 ) 

( or with sftp tool like mobaxterm ) 

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 ansible@192.168.99.11 ansible@192.168.99.11's password: Connected to 192.168.99.11. sftp> put /var/home/.ssh/id_rsa.pub

/project

/var/home/.ssh/id_rsa.pub Uploading /

project

var/home/.ssh/id_rsa.pub to /var/home/

ansible

.ssh/id_rsa.pub

/project

/var/home/.ssh/id_rsa.pub

100%

389

386

298

502.9KB/s 0.4KB/s 00:00 sftp> ls .ssh/ id_rsa.pub sftp> pwd Remote working directory: /var/home/

ansible

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

3- To set up SSH agent to avoid retyping passwords, you can do:

...

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!)

...