![]() The integration with VS Code is not as advanced as with the previous extension since the workspace is local. It mounts a remote filesystem as a local workspace folder. SSH FS is another alternative I use when the previous extension is not available, which can happen if the operating system on the remote computer is not supported. I refer to its documentation, but note that it will find SSH targets defined in Configuration file. This way, one can work on this remote folder using all the usual VS Code features (intellisense, code navigation, debugging, and so on) as if it was local. In practice, this will open a new VS Code window (workspace in VS Code jargon) where you can interact with the remote files and folders, open a terminal on the remote computer, and even install extensions. Remote - SSH can be used to open a folder on a remote computer running an SSH server. ![]() VS Code has useful extensions to work on a remote computer. It will prompt you for your password twice if you use a password-based authentication, or you can send your public key to both remote servers to use key-based authentication. You can then connect to the bastion using ssh my_bastion, or directly to the remote computer with ssh my_host. Host my_bastion HostName bastionname User username Host my_host HostName hostname User username ProxyJump my_bastion To create a pair of public/private keys, you need to use the following command That is why it is advised to add a layer of security by encrypting the private key itself with a passphrase, which is suggested when creating the keys.įinally, this approach provides passwordless access to the remote computer, meaning you can access several times to the remote computer, without having to type your password each time. But remark that if the private key is stolen (by someone accessing your workstation for example), then the remote computer is compromised (as compromised as if your password was stolen). This approach is usually considered safer than password-based authentication, mainly because the private key never leaves the user’s workstation. Note this is done automatically behind the scenes using the same command as before. The user will send back the decrypted message, which can only be done with the private key. Then, each time the user wants to connect to the remote computer, the remote computer will “challenge” the user sending a message encrypted using the public key. The idea is that the user generates both keys, and send the public key to the remote computer. More precisely, it uses an asymmetric encryption algorithm where the public key is used for encryption, and the private key is used for decryption. Using SSH, there is an alternative to password-based authentication which uses a public key and a private key. In this example, hostname is used to get the current IP address. The first time you connect to a remote computer, it will ask you if you want to add the host to known_hosts, which is a file you can find in ~/.ssh The SSH command to access a remote server with a password is as follows You should have a username and a password. To access a remote computer via ssh, the administrator of the server needs to set up your account. SSH client and server are present on most operating systems, including macOS, most distributions of Linux, and even (recent) versions of Windows. Mounting a directory on a remote server as a local filesystem. ![]() SSH is widely used, examples of applications areĪccessing severs remotely (student workspace hosted by the school, supercomputers, Git servers, remote workstation, …) with or without password, your workstation for example) to the server (e.g. All the communications from the client (e.g. The Secure Shell (SSH) protocol is a network protocol that allows secure access to systems running an SSH server over a network (e.g.
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