JustSFTP.Server 1.0.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package JustSFTP.Server --version 1.0.0
                    


                    

                
NuGet\Install-Package JustSFTP.Server -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="JustSFTP.Server" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="JustSFTP.Server" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="JustSFTP.Server" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add JustSFTP.Server --version 1.0.0
                    


                    

                
#r "nuget: JustSFTP.Server, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package JustSFTP.Server@1.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=JustSFTP.Server&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=JustSFTP.Server&version=1.0.0
                    


                            Install as a Cake Tool

Just SFTP Server

This library implements the V3 version of the SFTP protocol, and just it - you are free to use any transport/encryption layer (e.g. using a library like Microsoft's DevTunnels SSH), or OpenSSH's daemon - see JustSFTP.Host.

The SFTPServer class takes 2 Streams and optionally an ISFTPHandler on which the SFTP commands will be invoked. This package comes with a DefaultSFTPHandler which provides basic I/O on the hosts's filesystem (based on a rootdirectory), but it should be pretty easy to implement your own ISFTPHandler so you can, for example, implement a virtual filesystem.

Implementing an ISFTPHandler

Implementing an ISFTPHandler should be pretty straightforward, simply implement the ISFTPHandler interface. Throw a HandlerException to reflect a status code back tothe client. Exceptions that are not inherited from the HandlerException will be returned to the client as Failure (SSH_FX_FAILURE).

For an example implementation you can have a look at the DefaultSFTPHandler.

Known issues and limitations

  • Note that this library only implements V3; higher versions are not supported. Clients connecting with a higher version will be negotiated down to V3.

  • The SymLink command has been implemented with the linkpath and targetpath swapped; We may or may not interpret the RFC incorrectly (Update: We didn't) or the clients which were used to test the SymLink command (WinSCP, Cyberduck and the 'native' sftp commandline executable) had the arguments swapped. The SymLink and ReadLink methods are only available from .Net 6.0 upwards.

  • The DefaultSFTPHandler DOES NOT take particular much care of path canonicalization or mitigations against path traversion. When used in an untrusted environment extra care should be taken to ensure safety.

  • The DefaultSFTPHandler DOES NOT make a noteworthy effort to return correct POSIX file permissions, nor does it support setting permissions.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
1.0.3 85 2/26/2026
1.0.0 89 2/21/2026
0.2.1 89 2/21/2026