Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3/4TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

SQL Server Examples

Web API Categories

ASN.1
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks

Gzip
HTML-to-XML/Text
HTTP
HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
REST
REST Misc
RSA
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(SQL Server) Multi-Hop SSH (SSH Through SSH)

Demonstrates how to SSH through one SSH server to get to another SSH server. The scheme looks like this:

Application => ServerSSH1 => ServerSSH2

The ConnectThroughSsh method is added in Chilkat version 9.5.0.55 to accomplish this task. Technically, it should be possible to chain any number of servers using the ConnectThroughSsh multiple times:

Application => ServerSSH1 => ServerSSH2 ==> ServerSSH3 => ... => ServerSSHN

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @ssh1 int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Ssh', @ssh1 OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Hostname may be an IP address or domain name:
    DECLARE @hostname nvarchar(4000)
    SELECT @hostname = '192.168.1.108'
    DECLARE @port nvarchar(4000)
    SELECT @port = 22

    -- Connect directly to the 1st SSH server:
    DECLARE @success int
    EXEC sp_OAMethod @ssh1, 'Connect', @success OUT, @hostname, @port
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ssh1, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh1
        RETURN
      END

    -- Wait a max of 15 seconds when reading responses..
    EXEC sp_OASetProperty @ssh1, 'IdleTimeoutMs', 15000

    -- Authenticate using login/password:
    EXEC sp_OAMethod @ssh1, 'AuthenticatePw', @success OUT, 'myLogin', 'myPassword'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ssh1, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh1
        RETURN
      END

    -- Connect through the 1st SSH connection to reach a 2nd SSH server.
    -- Note: Any number of SSH connections may be simultaneously tunneled through a single
    -- existing SSH connection.
    DECLARE @ssh2 int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Ssh', @ssh2 OUT

    EXEC sp_OAMethod @ssh2, 'ConnectThroughSsh', @success OUT, @ssh1, 'someremoteserver.com', 22
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ssh2, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh1
        EXEC @hr = sp_OADestroy @ssh2
        RETURN
      END

    EXEC sp_OASetProperty @ssh2, 'IdleTimeoutMs', 15000

    -- Authenticate with ssh2...
    EXEC sp_OAMethod @ssh2, 'AuthenticatePw', @success OUT, 'myLogin2', 'myPassword2'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ssh2, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh1
        EXEC @hr = sp_OADestroy @ssh2
        RETURN
      END

    -- The application may now is connected and authenticated with ssh2.
    -- The application can do whatever it desires just as if it was directly
    -- connected to ssh2.   For example, the application might open
    -- a session channel to send commands or start a remote shell..
    DECLARE @channelNum int
    EXEC sp_OAMethod @ssh2, 'OpenSessionChannel', @channelNum OUT
    IF @channelNum < 0
      BEGIN
        EXEC sp_OAGetProperty @ssh2, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh1
        EXEC @hr = sp_OADestroy @ssh2
        RETURN
      END

    -- ...
    -- ...
    -- ...

    -- Close the connection with ssh2.  (This closes the the tunnel through ssh1.)
    -- The connection with ssh1 is still alive, and may be used for more connections.
    EXEC sp_OAMethod @ssh2, 'Disconnect', NULL

    -- ...
    -- ...
    -- ...

    EXEC sp_OAMethod @ssh1, 'Disconnect', NULL

    EXEC @hr = sp_OADestroy @ssh1
    EXEC @hr = sp_OADestroy @ssh2


END
GO

 

© 2000-2020 Chilkat Software, Inc. All Rights Reserved.