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Guide: Use Rsync Without Password – Guide
You may have read about using ssh, SCP and rsync, but they all require a password that is understandable for security reasons. BTW… this is not recommended for a business environment. However, there are times when you need to do this in cron, so you need to do this without intervention. First, use ssh-keygen on the local server to generate public and private keys. Note: When prompted to enter the passphrase, press the Enter key and do not provide any password here.
Let’s say you want to copy between two hosts host_src and host_dest. host_src is the host where you would run the scp, ssh or rsyn command regardless of the file copy direction!
$ cat id_rsa.pub >> ~ / .ssh / authorized_keys $ chmod 700 ~ / .ssh / authorized_keysIf this file does not exist then the above command will create it. Be sure to remove permission for other people to read this file. If it’s a public key, why stop others from reading this file? Probably the owner of the key has distributed it to some trusted users and has not put in any additional security measures to verify that it is really a trusted user.
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