Scp Download File

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SCP a file to a Linux VM. For the first example, we copy an Azure configuration file up to a Linux VM that is used to deploy automation. Because this file contains Azure API credentials, which include secrets, security is important. The encrypted tunnel provided by SSH protects the contents of the file. SCP wrapper to download files easily. Scp no such file. Unix list absolute file name. Unable to scp from remote to local Mac. Overiding global command in.

File

Typically I am having to upload files a Cisco device across the Internet. Doing so, I found TFTP or evening having a TFTP server problematic. An easier solution is to have any standard SSH server (Linux, Unix) and copy the files to and from the server.

To upload files to the server, I use WINSCP ( https://winscp.net ). This allows me to upload the file to my server very easily. All I have to do is connect up (username/password) to my server IP address. The interface is intuitive.

Download

To download the file to the Cisco device I use the command:

copy scp://<User>:<Password>@<Server-IP>/<File-name> flash0://<File-Name>

<User>: JDOE

<Password>: Something-Annoying!

Scp

<Server-IP>: 173.255.173.150

<File-name>: c2900-universalk9-mz.SPA.153-3.M8a.bin

Now the command with the actual information in.

copy scp://JDOE: [email protected] 173.255.173.150/c2900-universalk9-mz.SPA.153-3.M8a.bin flash0:// c2900-universalk9-mz.SPA.153-3.M8a.bin

Now the file starts coming down with no need to do anything more.

Jason Howe, PEI

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Applies to: ✔️ Linux VMs ✔️ Flexible scale sets

This article shows how to move files from your workstation up to an Azure Linux VM, or from an Azure Linux VM down to your workstation, using Secure Copy (SCP). Moving files between your workstation and a Linux VM, quickly and securely, is critical for managing your Azure infrastructure.

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For this article, you need a Linux VM deployed in Azure using SSH public and private key files. You also need an SCP client for your local computer. It is built on top of SSH and included in the default Bash shell of most Linux and Mac computers and PowerShell.

Quick commands

Copy a file up to the Linux VM

Copy a file down from the Linux VM

Detailed walkthrough

As examples, we move an Azure configuration file up to a Linux VM and pull down a log file directory, both using SCP and SSH keys.

SSH key pair authentication

Scp Download Pc

SCP uses SSH for the transport layer. SSH handles the authentication on the destination host, and it moves the file in an encrypted tunnel provided by default with SSH. For SSH authentication, usernames and passwords can be used. However, SSH public and private key authentication are recommended as a security best practice. Once SSH has authenticated the connection, SCP then begins copying the file. Using a properly configured ~/.ssh/config and SSH public and private keys, the SCP connection can be established by just using a server name (or IP address). If you only have one SSH key, SCP looks for it in the ~/.ssh/ directory, and uses it by default to log in to the VM.

For more information on configuring your ~/.ssh/config and SSH public and private keys, see Create SSH keys.

SCP a file to a Linux VM

For the first example, we copy an Azure configuration file up to a Linux VM that is used to deploy automation. Because this file contains Azure API credentials, which include secrets, security is important. The encrypted tunnel provided by SSH protects the contents of the file.

The following command copies the local .azure/config file to an Azure VM with FQDN myserver.eastus.cloudapp.azure.com. If you don't have an FQDN set, you can also use the IP address of the VM. The admin user name on the Azure VM is azureuser. The file is targeted to the /home/azureuser/ directory. Substitute your own values in this command.

SCP a directory from a Linux VM

For this example, we copy a directory of log files from the Linux VM down to your workstation. A log file may or may not contain sensitive or secret data. However, using SCP ensures the contents of the log files are encrypted. Using SCP to transfer the files is the easiest way to get the log directory and files down to your workstation while also being secure.

The following command copies files in the /home/azureuser/logs/ directory on the Azure VM to the local /tmp directory:

The -r flag instructs SCP to recursively copy the files and directories from the point of the directory listed in the command. Also notice that the command-line syntax is similar to a cp copy command.

Scp Download File Command

Next steps