Ssh And Sftp



SFTP (SSH File Transfer Protocol) is a network protocol that provides file access, file transfer, and file management over any reliable data stream. It was designed by the Internet Engineering Task Force (IETF) as an extension of the Secure Shell protocol (SSH) version 2.0 to. Dec 01, 2020 What is SFTP? SFTP stands for Secure File Transfer Protocol (also known as SSH File Transfer Protocol). It is a file transfer protocol such as FTP yet operates over a secure network protocol like SSH. We highly recommend using SFTP for file transferring because: It adds a layer of security. Transferred data is encrypted, so it is not sent in. SFTP stands for Secure File Transfer Protocol (also known as SSH File Transfer Protocol). It is a file transfer protocol such as FTP yet operates over a secure network protocol like SSH. We highly recommend using SFTP for file transferring because: It adds a layer of security. Transferred data is encrypted, so it is not sent in.

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SFTP (SSH File Transfer Protocol) is a network protocol that provides file access, file transfer, and file management over any reliable data stream. It was designed by the Internet Engineering Task Force (IETF) as an extension of the Secure Shell protocol (SSH) version 2.0 to provide secure file transfer capabilities.

This connector is available in the following products and regions:

ServiceClassRegions
Logic AppsStandardAll Logic Apps regions and Integration Service Environments (ISEs)
Power AutomateStandardAll Power Automate regions except the following:
- US Government (GCC High)
Power AppsStandardAll Power Apps regions except the following:
- US Government (GCC High)
Contact
NameMicrosoft
URLMicrosoft LogicApps Support
Microsoft Power Automate Support
Microsoft Power Apps Support
Connector Metadata
PublisherMicrosoft

Trigger limits

The triggers work by polling the SFTP file system, and looking for any file which has been modified since the last poll, comparing files by modification time. Certain tools allow the file modification time to be preserved. In such cases, you need to disable the feature for your trigger to work. Here are some common settings:

SFTP clientAction
WinSCPOptions → Preferences… → Transfer → Edit… → Preserve timestamp → Disable
FileZillaTransfer → Preserve timestamps of transferred files → Disable

When the triggers encounter a new file, it will try to ensure that the new file is completely written. For instance, it is possible that the file is being written or modified, and updates are being made at the time the trigger polled the file server. To avoid returning a file with partial content, the trigger will take note of the timestamp such files which are modified recently, but will not immediately return those files. Those files will be returned only when the trigger polls again. Sometimes, this may lead a delay up to twice the trigger polling interval. This also means that the trigger does not guarantee to return all files in a single run when 'Split On' option is disabled.

Connector in-depth

For more information about the connector, see the in-dept section.

Creating a connection

The connector supports the following authentication types:

DefaultRequired parameters for creating connection.All regionsNot shareable

Default

Applicable: All regions

Required parameters for creating connection.

This is not shareable connection. If the power app is shared with another user, another user will be prompted to create new connection explicitly.

NameTypeDescription
Host server addressstringHost server address
User namestringUser name
PasswordsecurestringPassword
SSH private keysecurestringSSH private key (the content of the file should be provided entirely as is, in the multiline format)
SSH private key passphrasesecurestringSSH private key passphrase (if the private key is protected by a passphrase)
Port numberintSFTP port number (example: 22)
Disable SSH host key validationboolDisable SSH host key validation? (True/False)
SSH host key finger-printstringSSH host key finger-print
Root folder pathstringRoot folder path.

Throttling Limits

NameCallsRenewal Period
API calls per connection15060 seconds

Actions

Copy file

This operation copies a file.

Create file

This operation uploads a file.

Create folder

This operation creates a new folder.

Delete file

This operation deletes a file.

Extract archive to folder

This operation extracts an archive file into a folder (example: .zip).

Get file content

This operation gets file contents using the file id.

Get file content using path

This operation gets file contents using the file path.

Get file metadata

This operation gets file metadata using the file id.

Get file metadata using path

This operation gets file metadata using the file path.

List files in folder

This operation gets files contained in a folder.

List files in root folder

This operation gets the files in the root folder.

Rename File

This operation renames a file.

Update file

This operation updates the file content.

Copy file

This operation copies a file.

Parameters

NameKeyRequiredTypeDescription
source True string

Path to the source file

Destination file path
destination True string

Path to the destination file, including file name

overwrite boolean

Overwrites the destination file if set to 'true'

Get all file metadata
ReadFileMetadataFromServer boolean

Get all file metadata from the SFTP server after file creation is complete. If this is false, some metadata properties may not be returned such as last modified time, etc.

Returns

Blob metadata

Create file

This operation uploads a file.

Parameters

NameKeyRequiredTypeDescription
folderPath True string

Unique path of the folder

File name
name True string

Name of the file

body True binary

Content of the file to create

Get all file metadata
ReadFileMetadataFromServer boolean

Get all file metadata from the SFTP server after file creation is complete. If this is false, some metadata properties may not be returned such as last modified time, etc.

Returns

Blob metadata

Create folder

This operation creates a new folder.

Parameters

NameKeyRequiredTypeDescription
folderPath True string

Select a folder

Name
name True string

Name of the folder

Returns

Blob metadata

Delete file

This operation deletes a file.

Parameters

Ssh And Sftp
NameKeyRequiredTypeDescription
id True string

Specify the file

Skip delete if file not found
SkipDeleteIfFileNotFoundOnServer boolean

Skips deletion if a file is not found without failing action.

Extract archive to folder

This operation extracts an archive file into a folder (example: .zip).

Parameters

NameKeyRequiredTypeDescription
source True string

Path to the archive file

Destination folder path
destination True string

Path to the destination folder

overwrite boolean

Overwrites the destination files if set to 'true'

Returns

response
array of BlobMetadata

Get file content

This operation gets file contents using the file id.

Parameters

NameKeyRequiredTypeDescription
id True string

Specify the file id

Infer Content Type
inferContentType boolean

Infer content-type based on extension

Returns

The content of the file.

Get file content using path

This operation gets file contents using the file path.

Parameters

NameKeyRequiredTypeDescription
path True string

Unique path of the file

Infer Content Type
inferContentType boolean

Infer content-type based on extension

Returns

The content of the file.

Get file metadata

This operation gets file metadata using the file id.

Parameters

NameKeyRequiredTypeDescription
id True string

Specify the file id

Returns

Blob metadata

Body
BlobMetadata

Get file metadata using path

This operation gets file metadata using the file path.

Parameters

NameKeyRequiredTypeDescription
path True string

Unique path of the file

Returns

Blob metadata

Body
BlobMetadata

List files in folder

This operation gets files contained in a folder.

Parameters

NameKeyRequiredTypeDescription
id True string

Specify the folder

Returns

response
array of BlobMetadata

List files in root folder

This operation gets the files in the root folder.

Returns

Rename File

This operation renames a file.

Parameters

NameKeyRequiredTypeDescription
id True string

Select a file

New name
newName True string

New name for the file

ReadFileMetadataFromServer boolean

Get all file metadata from the SFTP server after file creation is complete. If this is false, some metadata properties may not be returned such as last modified time, etc.

Returns

Represents blob datasets metadata response

Body
BlobMetadataResponse

Update file

This operation updates the file content.

Parameters

NameKeyRequiredTypeDescription
id True string

Specify the file

File content
body True binary

Content of the file to update

ReadFileMetadataFromServer boolean

Get all file metadata from the SFTP server after file creation is complete. If this is false, some metadata properties may not be returned such as last modified time, etc.

Returns

Blob metadata

Body
BlobMetadata

Triggers

When a file is added or modified

This operation triggers a flow when a file is added or modified in a folder. The trigger will fetch both the file metadata as well as the content of the file. The trigger relies on the last modified time of a file. If a file is being created by a third-party client, the preservation of the last modified time should be disabled in the client. Files larger than 50 megabytes are skipped by the trigger. The trigger does not fire if a file is added/updated in a subfolder. If it is required to trigger on subfolders, multiple triggers should be created.

When files are added or modified (properties only)

This operation triggers a flow when a file is added or modified in a folder. This trigger will only fetch the file metadata. To get the file content, you can use the 'Get file content' operation. The trigger relies on the last modified time of a file. If a file is being created by a third-party client, the preservation of the last modified time should be disabled in the client. The trigger does not fire if a file is added/updated in a subfolder. If it is required to trigger on subfolders, multiple triggers should be created.

When a file is added or modified

This operation triggers a flow when a file is added or modified in a folder. The trigger will fetch both the file metadata as well as the content of the file. The trigger relies on the last modified time of a file. If a file is being created by a third-party client, the preservation of the last modified time should be disabled in the client. Files larger than 50 megabytes are skipped by the trigger. The trigger does not fire if a file is added/updated in a subfolder. If it is required to trigger on subfolders, multiple triggers should be created.

Parameters

NameKeyRequiredTypeDescription
folderId True string

Specify a folder

Include file content
includeFileContent boolean

If set to true, file content will also be retrieved along with the trigger response

inferContentType boolean

Infer content-type based on extension

Returns

The content of the file.

Ssh And Sftp Client For Linux

File Content
binary

When files are added or modified (properties only)

This operation triggers a flow when a file is added or modified in a folder. This trigger will only fetch the file metadata. To get the file content, you can use the 'Get file content' operation. The trigger relies on the last modified time of a file. If a file is being created by a third-party client, the preservation of the last modified time should be disabled in the client. The trigger does not fire if a file is added/updated in a subfolder. If it is required to trigger on subfolders, multiple triggers should be created.

Parameters

NameKeyRequiredTypeDescription
folderId True string

Select a folder

Number of files
maxFileCount integer

Number of files returned from the trigger (1-100)

Returns

Blob metadata

Definitions

BlobMetadata

Blob metadata

NamePathTypeDescription
Id string

The unique id of the file or folder.

Name
Name string

The name of the file or folder.

DisplayName string

The display name of the file or folder.

Path
Path string

The path of the file or folder.

LastModified date-time

The date and time the file or folder was last modified.

Size
Size integer

The size of the file or folder.

MediaType string

The media type of the file or folder.

IsFolder
IsFolder boolean

A boolean value (true, false) to indicate whether or not the blob is a folder.

ETag string

The etag of the file or folder.

FileLocator
FileLocator string

The filelocator of the file or folder.

BlobMetadataResponse

Represents blob datasets metadata response

NamePathTypeDescription
Id string

The unique id of the file or folder.

Name
Name string

The name of the file or folder.

DisplayName string

The display name of the file or folder.

Path
Path string

The path of the file or folder.

LastModified date-time

The date and time the file or folder was last modified.

Size
Size integer

The size of the file or folder.

MediaType string

The media type of the file or folder.

IsFolder
IsFolder boolean

A boolean value (true, false) to indicate whether or not the blob is a folder.

ETag string

The etag of the file or folder.

FileLocator
FileLocator string

The filelocator of the file or folder.

binary

Ssh And Sftp Port Number

SSH key pairs allow an additional level of security that can be used in conjunction with the SFTP protocol.

Key pairs are typically created by the client, and then the resulting public key is used by Core FTP Server.

Core FTP products use the OpenSSH SSH2 format, that can be generated using Core FTP software, or via the ssh-keygen utility.

Core FTP client -- creating a key pair
Step 1: Advanced site settings -> ssh


Step 2: Entering key information


Step 3: Selecting private key into client site profile


Additionally if no account password is being used for the server, check the Advanced -> General -> 'Don't prompt for password when empty' option.

Ssh And Sftp Client For Mac


ssh-keygen usage: (Unix/Linux)
rsa keys: ssh-keygen -t
dsa keys: ssh-keygen -t dsa
For Unix/Linux, dsa keys may be the preferred method due to better compatibility across operating systems.
Putty users using psftp need to export OpenSSH public keys using Puttygen


Entering public key into Core FTP Server
Once you have created a key pair, the public key file is then placed in a directory on the server that cannot be accessed by the client account.
Select the public key file in the Core FTP Server's user 'security properties', in the 'ssh pub cert' field.

The server will need the 'Allow key authentication' option checked in the domain setup.


For SSH key pairs and no account password, the 'Key authentication only' option should be checked. Users not using keypairs can bypass the public key requirementby selecting the 'User does not require key authentication' in the user's 'security' settings.


A SSH key pair can be created on the server side from the above screen, but it is not recommended due to the security issues involved in sending the private key and it's password to the client. A public key being passed from a client to the server (administrator) is a much better option from a security standpoint.

Example of a public key (file contents):AAAAB3NzaC1yc2EAAAABIwAAAIEA153PICRN2+viqQ2570jEfUPcWgknD079wX/QtdF0lIbMaOYeMba9jf/qqmfuWYSybNmpSxMZiyjbKDvH+iZ/iT0MwrK9x19Zkjb8nXugWtOOJSwiHc48DSwMkLDdbVdG/BvstHbBquBdQNkJz+VDxFO+P3TcfYbIsvx+YFxnbLU=
or
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEA153PICRN2+viqQ2570jEfUPcWgknD079wX/QtdF0lIbMaOYeMba9jf/qqmfuWYSybNmpSxMZiyjbKDvH+iZ/iT0MwrK9x19Zkjb8nXugWtOOJSwiHc48DSwMkLDdbVdG/BvstHbBquBdQNkJz+VDxFO+P3TcfYbIsvx+YFxnbLU=
The '=' character should be the last character in the public key. Multiple keys can be in one file, one per line. Begining characters identifying the key type at the beginning (rsa or dsa) are acceptable and read by Core FTP Server.
Keys should be in multibyte format.

Core FTP software utilizes SSH2 and greater versions of SSH...SSH1 is not supported

Core FTP Server Build 405 and greater supports RFC 4716 SSH formatted keys

ssh keys

What Is Sftp