Introduction
Feb 14, 2020 You can use the official OpenSSH package for Windows to easily organize a secure file transfer between the client and Windows server using the SFTP (Secure FTP) protocol. In this article, we will show how to use the Win32-OpenSSH to run an SFTP server on Windows 10 or Windows Server 2016 / 2012R2. Jul 29, 2019 Run WinSCP and select 'SFTP' as the protocol. In the host name field, enter 'localhost' (if you're testing the PC you installed OpenSSH on). You will need to enter your Windows username and password to allow the program to connect to the server. Hit save, and select login.
OpenSSH is a powerful collection of tools for the remote control of, and transfer of data between, networked computers. You will also learn about some of the configuration settings possible with the OpenSSH server application and how to change them on your Ubuntu system.
OpenSSH is a freely available version of the Secure Shell (SSH) protocol family of tools for remotely controlling, or transferring files between, computers. Traditional tools used to accomplish these functions, such as telnet or rcp, are insecure and transmit the user’s password in cleartext when used. OpenSSH provides a server daemon and client tools to facilitate secure, encrypted remote control and file transfer operations, effectively replacing the legacy tools.
The OpenSSH server component, sshd, listens continuously for client connections from any of the client tools. When a connection request occurs, sshd sets up the correct connection depending on the type of client tool connecting. For example, if the remote computer is connecting with the ssh client application, the OpenSSH server sets up a remote control session after authentication. If a remote user connects to an OpenSSH server with scp, the OpenSSH server daemon initiates a secure copy of files between the server and client after authentication. OpenSSH can use many authentication methods, including plain password, public key, and Kerberos tickets.
Installation
Installation of the OpenSSH client and server applications is simple. To install the OpenSSH client applications on your Ubuntu system, use this command at a terminal prompt:
To install the OpenSSH server application, and related support files, use this command at a terminal prompt:
Configuration
You may configure the default behavior of the OpenSSH server application, sshd, by editing the file /etc/ssh/sshd_config. For information about the configuration directives used in this file, you may view the appropriate manual page with the following command, issued at a terminal prompt:
There are many directives in the sshd configuration file controlling such things as communication settings, and authentication modes. The following are examples of configuration directives that can be changed by editing the /etc/ssh/sshd_config file.
Tip
Prior to editing the configuration file, you should make a copy of the original file and protect it from writing so you will have the original settings as a reference and to reuse as necessary.
Compilation of machinesthe mechanic. Hca converting gea to nia free download for mac os x. Copy the /etc/ssh/sshd_config file and protect it from writing with the following commands, issued at a terminal prompt:
Furthermore since losing an ssh server might mean losing your way to reach a server, check the configuration after changing it and before restarting the server:
The following are examples of configuration directives you may change:
- To set your OpenSSH to listen on TCP port 2222 instead of the default TCP port 22, change the Port directive as such:
Port 2222
- To make your OpenSSH server display the contents of the
/etc/issue.netfile as a pre-login banner, simply add or modify this line in the/etc/ssh/sshd_configfile:
Banner /etc/issue.net
After making changes to the /etc/ssh/sshd_config file, save the file, and restart the sshd server application to effect the changes using the following command at a terminal prompt:
Warning
Many other configuration directives for sshd are available to change the server application’s behavior to fit your needs. Be advised, however, if your only method of access to a server is ssh, and you make a mistake in configuring sshd via the /etc/ssh/sshd_config file, you may find you are locked out of the server upon restarting it. Additionally, if an incorrect configuration directive is supplied, the sshd server may refuse to start, so be extra careful when editing this file on a remote server.
SSH Keys
SSH allow authentication between two hosts without the need of a password. SSH key authentication uses a private key and a public key.
To generate the keys, from a terminal prompt enter:
This will generate the keys using the RSA Algorithm. At the time of this writing, the generated keys will have 3072 bits. You can modify the number of bits by using the -b option. For example, to generate keys with 4096 bits, you can do:
During the process you will be prompted for a password. Simply hit Enter when prompted to create the key.
By default the public key is saved in the file ~/.ssh/id_rsa.pub, while ~/.ssh/id_rsa is the private key. Now copy the id_rsa.pub file to the remote host and append it to ~/.ssh/authorized_keys by entering:
Finally, double check the permissions on the authorized_keys Synopsis, art, and a phone!. file, only the authenticated user should have read and write permissions. If the permissions are not correct change them by:
You should now be able to SSH to the host without being prompted for a password.
Import keys from public keyservers
These days many users have already ssh keys registered with services like launchpad or github. Those can be easily imported with:
The prefix lp: is implied and means fetching from launchpad, the alternative gh: will make the tool fetch from github instead.
Two factor authentication with U2F/FIDO
OpenSSH 8.2 added support for U2F/FIDO hardware authentication devices. These devices are used to provide an extra layer of security on top of the existing key-based authentication, as the hardware token needs to be present to finish the authentication.
It’s very simple to use and setup. The only extra step is generate a new keypair that can be used with the hardware device. For that, there are two key types that can be used: ecdsa-sk and ed25519-sk. The former has broader hardware support, while the latter might need a more recent device.
Once the keypair is generated, it can be used as you would normally use any other type of key in openssh. The only requirement is that in order to use the private key, the U2F device has to be present on the host.
Openssh Sftp-server
For example, plug the U2F device in and generate a keypair to use with it:
Now just transfer the public part to the server to ~/.ssh/authorized_keys and you are ready to go:
References
Ubuntu Wiki SSH page.
Last updated 8 months ago. Help improve this document in the forum.
Windows SFTP client apps
Specialized applications from connecting to SFTP.
| Application | Note |
|---|---|
| WinSCP | Free and open source SFTP GUI client. Despite its name it's not limited to SCP, but works with SFTP and FTP/SSL too. |
| Filezilla Client | Free and open source FTP, FTP/SSL and SFTP GUI client (beware of adware). |
| Bitvise SSH Client | SSH tunneling, SSH terminal emulation and SFTP client. Commercial. |
| JSCAPE AnyClient | Web-based SFTP/FTP/FTPS/WebDAV/S3 client. Commercial with free version. |
| Tectia SSH Client | SFTP/SSH client from the creators of the SSH protocol. Commercial. |
| VanDyke SecureFX | SFTP/FTP/SCP client for Windows, Mac and Linux. Commercial. |
| FlashFXP | SFTP/FTP client for Windows. Commercial. |
| FTP Voyager | FTP/FTP client for Windows. Free. |
| WS_FTP Professional Client | SFTP/FTP client for Windows. Commercial. |
| Axway Secure Client | SFTP/FTP client for Windows. Commercial. |
| SmartFTP | FTP (File Transfer Protocol), FTPS, SFTP, WebDAV, S3, Google Drive, OneDrive, SSH, Terminal client. Commercial. |
| GoAnywhere SFTP client for MFT | SFTP client from creators of GoAnywhere MFT server. Commercial. |
SFTP plugins for popular apps
| Swish (for Windows Explorer) | Shows SFTP server in Windows Explorer. It's not a filesystem driver, so this sftp drive cannot be used from command line or from inside another program. Free and open source. |
| SFTP plugin for Total Commander | Official plugin from the creators of Total Commander. Free. |
| Chrome sFTP Client | sFTP Client for Google Chrome / Chrome OS. |
Command-line clients
Use those if you want to access SFTP from a script or if you simply prefer command line over GUI.
| PuTTY PSFTP | PuTTY SFTP tool for those who are not afraid of command line. Available for Windows and Un*x-like systems. Free and open source. |
| OpenSSH | OpenSSH's 'ssh' command is available on most Un*x systems. Free and open source. Windows port is included in CygWin. |
| Bitvise Command-Line SFTP Client | Advanced command-line SFTP client for Windows. Commercial. |
Openssh Sftp Windows Server 2016
Map SFTP server as a network drive
Do you want to use a SFTP connection as a Windows mapped drive? Assign it a drive letter and use it from any application? Try one of those:
Openssh Sftp Server Windows
| NetDrive | SFTP, FTP, DropBox, GoogleDrive, OneDrive and few others. Commercial. Reverts to a limited free version when the trial is over. Windows. |
| Web Drive | SFTP, FTP, DropBox, GoogleDrive, OneDrive and few others. File system level locking symantics. Synchronization mode and network drive mode. Commercial. Windows, Mac, iOS and Android. |
| ExpandDrive | SFTP, FTP, DropBox, GoogleDrive, OneDrive and few others. Commercial. Windows and Mac. |
| SFTP NET Drive | SFTP. Commercial. Free for personal use. Windows. |
| win-sshfs | Maps remote SFTP drive and make it available to all applications. Open source, last updated in 2012. Works on Windows 7, newer OS versions are not supported. Several forks exists. |
| WinSshFS 4every1 edition | Fork of win-sshfs which works on Win10. Free and open source. |
| WinSshFS FiSSH edition | Fork of win-sshfs focused on UI changes. Free and open source. |
| SSHFS for Linux | Enables you to mount a remote folder on Linux over SSH. FUSE-based, free and open source. Part of most Linux distros. |
| SSHFS for OS X | SSH File System for MAC OS X based on FUSE for OS X. Free and open source. |