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SCP Transfer File without password

 

To transfer a folder without being asked for a password each time with scp, you should set up SSH key-based authentication between your local machine and the remote server.

Here’s how 👇

Step 1: Generate SSH Key (on your local machine) type below command 

ssh-keygen -t rsa

Press Enter for default file location (~/.ssh/id_rsa).

If you want, set a passphrase (or leave it empty for no password).


Step 2: Copy the Public Key to Remote Server

ssh-copy-id root@192.168.0.201

or manually:

cat ~/.ssh/id_rsa.pub | ssh root@192.1688.0.201 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys && chmod 700 ~/.ssh"

👉 Enter the password once here.
After this, the key will be stored in ~/.ssh/authorized_keys on the remote server.

Step 3: Test Passwordless Login

ssh root@192.168.0.201

 If it logs in without asking for a password — you're done.

 Step 4: Transfer Folder with scp (No Password Now)

scp -r test.txt root@192.168.0.201:/root/

This time it won’t ask for a password.











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