start shell user root (root credentials are stored in 1Password)
If needing to send in the /var/log to Juniper support, I did this.
use tar -cf /tmp/filename /var/log
EXAMPLE: tar -cf /tmp/Logs.tar /var/log
This will create the tarball for the /var/log directory which can then be FTP'd over to an ftp server
Navigate to the directory which you stored your tar file, for me it was /tmp
Then I used the command ftp juniper@10.71.0.30 and used the credentials in 1Password to connect.
Next use command put filename