Typically when you use SSH to copy files from one server to another, you’re required to provide the password. The process goes something like this:
If you need more information on the above command, here’s a brief explanation:
How to Copy Files without a Password?
You can copy files from one Linux server to another by following these steps:
So that’s how you copy files to a remote Linux server over SSH without the need for a password.
- You use the secure copy command and name the original file and the destination file like this:
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scp [options] original_file destination_file- You provide the remote username and destination path for copying
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username@serverIP Address:path/to/file- Here’s the complete command to migrate a file from one Linux server to another:
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scp –P 22 /home/test.txt vpshost@serverIP Address:/home/user/test.txt- scp stands for secure copy command
- -P is the port number
- vphost is the user of the remote server
- /home/user/test.txt is the destination where you’ll be moving the file to
How to Copy Files without a Password?
You can copy files from one Linux server to another by following these steps:
- Execute this command at source machine (it will generate a file which you can view by running is command to .ssh directory):
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ssh-keygen- Then run this command to copy the generated file to the remote server:
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scp –P 22 /root/.ssh/id_rsa.pub vpshost@serverIP Address:/root/.ssh/- Now you must have created a directory called authorizedkey_3 at the remote server and placed it inside the /.ssh directory. Then run this command at the remote server:
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cat .ssh/id_rsa.pub >> .ssh/authorized_keys- Execute this command to give permission to .ssh/authorized_keys folder:
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chmod 600 .ssh/authorized_keys- Now you can test with copying files to the remote server and it shouldn’t ask for password. Use this command now:
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scp –P 22 /home/test.txt vpshost@serverIP Address:/home/test.txt
