Note_Tech

All technological notes.

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Linux - Network: SCP

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• Linux - Network: SCP
  • SCP Protocol
  • Package and Command
  • Lab: Transfer File vis SCP

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SCP Protocol

• scp(Secure Copy Protocol)

  • a protocol used to securely copy files between a local and a remote host or between two remote hosts.
  • uses SSH (Secure Shell) for data transfer and provides encryption to ensure the confidentiality and integrity of the data being transferred.

• Port: 22

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Package and Command

• Package openssh

Command	Description
scp local_file user@remote_host:/path/	Copy a File from Local to Remote
scp -i key_file local_file user@remote_host:/path/	Use a specific private key file for authentication.
scp -P pnum local_file user@remote_host:/path/	Specify a Port
scp -l 500 localfile user@server:/path/	Limit Bandwidth
scp -C gz_file username@remote_host:/path/	Enable compression
scp -r /local/dir user@remote_host:/path/	Copy a Directory
scp user1@server1:/remote/file user2@server2:/path/	Copy a File Between Two Remote Hosts
scp user@remote_host:/remote/file /local/path/	Copy a File from Remote to Local

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Lab: Transfer File vis SCP

• Model:

  • Client-Server
• Client(RHEL8): rheladmin user
• Server(RHEL8): scpuser user

# create file on the client
su - rheladmin

touch /home/rheladmin/scp_file
echo "This is a scp file from client." > /home/rheladmin/scp_file
cat /home/rheladmin/scp_file
ll /home/rheladmin/scp_file
# -rw-rw-r--. 1 rheladmin rheladmin 32 Dec  7 15:44 /home/rheladmin/scp_file

# transfer file
scp /home/rheladmin/scp_file scpuser@192.168.204.153:/home/scpuser/
# scp_file                                      100%   32    10.6KB/s   00:00

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