To access SFTP server from SAP-PI using SFTP adapter, below details are required: If you are already a member in this website, Please Click here to loginIf you are not yet a member, Please Click here to Sign up, SAP PI/PO Directory API: Extract detailed Communication Channel configurations into an Excel sheet **without custom codes/macros**. The customer retains the private keyon their server and provides the public key to SuccessFactors. For secure SSH communication a known hosts file has to be deployed in the cloud integration tenant containing the public host key of the sftp server so that the sftp server will be trusted. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. It should contain exactly the same characters found in your SFTP public key file. Where first is a private key and second is a public key. Thanks for the detailed information, can you tell me if there is a way in using the SFTP server SSH key in SAP PO? For example, to change directories, show folder contents, create folders or delete files. Your email address will not be published. I assume the converted private SSH key is only required to create the public SSH key (both using the command line tools) in order to provide/store the public key to the SFTP server. Search for additional results. Visit SAP Support Portal's SAP Notes and KBA Search. You'll need it later, so make sure it's a phrase you can easily recall. Download your free 7-day trial of JSCAPE MFT Server now. STFP public key authentication is a method for establishing a secure FTP connection, instead of using a password. Recommended configuration option for secure communication is public key authentication. We recently patched our SFTP adapter and we get the following error (keyboard interactive), Catchingjava.lang.UnsupportedOperationException:receivedauthenticationrequestfromserverwhichcouldnotbeprocessed, name=Passwordauthentication;instruction=prompt=, atcom.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection$MyUserInfo.promptKeyboardInteractive(SSHConnection.java:783)atcom.jcraft.jsch.UserAuthKeyboardInteractive.start(UserAuthKeyboardInteractive.java:141)atcom.jcraft.jsch.Session.connect(Session.java:468)atcom.sap.aii.adapter.sftp.ra.rar.integration.sftp.SSHConnection.(SSHConnection.java:195)atcom.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.getConnection(SFTP2XI.java:1559)atcom.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.sftpConnection(SFTP2XI.java:326)atcom.sap.aii.adapter.sftp.ra.rar.jca.SFTP2XI.invoke(SFTP2XI.java:250)atcom.sap.aii.af.lib.scheduler.JobBroker$Worker.run(JobBroker.java:529)atcom.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)atjava.security.AccessController.doPrivileged(NativeMethod)atcom.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:185)atcom.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:302). If selected, you can specify theUser Credentialsartifact (that contains user name and password) with theCredential Nameparameter and the key to be used from the keystore with thePrivate Key Aliasparameter. is there a way to implement that key in SAP PO? Add the timestamp in format YYYYMMDD_HHMMSS-xxx before the extension of the filename. For generating the public key,could we use puttygen instead of using the commands in the script (which I don't know where to use)? Unless you specified a port in the address, the default port will be 21. CPI, HCI, Auth Fail, SFTP, SFTP Server, sender, receiver, SFTP adapter, public key, private key, communication channel, Inbound, Outbound, authentication, known hosts file . The ssh-copy-id program is usually included when you install ssh. chmod 700 authorized_keys. 'xxx' is a random . Legal Disclosure | Yes, the purpose to upload the key was to create public-key using SSH-Key gen tool in SAP-PO. For more clarity, I have updated the blog with summarized steps, which may help you, please have a look once. In Sender Channel, provide input for SFTP servers IP/Port/Fingerprint/Authentication details as shown in below screen: Directory references starts from root directory of SFTP server, And we are reading all files of that direcrtoy using Filename input. For the authentication step based on public key: User name contained in the deployed artifact with name given by theCredential Nameparameter and the key identified by thePrivate Key Aliasparameter are evaluated by the system to authenticate the tenant against the SFTP server. You can choose between the following options: Explicit FTPS: After an initial connection, the client with sendAUTH TLScommand to the server and initial the handshake this way. When the connection is successful (the CPI tenant IP Ranges should have already been whitelisted by this time), click on "Copy Host Key Link". Symmetric and asymmetric keys are used by a client and a server exchanging data via SFTP in the following way: The client connects to the server. I hope you can advise me. At runtime, the system evaluates the values of additional parameters in the following way: For the authentication step based on user credentials: Credentials from the deployed artifact with the name given by theCredential Nameparameter are evaluated by the system to authenticate the tenant against the SFTP server. By continuing to browse this website you agree to the use of cookies. Check out our online tutorial to learn how to set up automated AS2 file transfers using our MFT server. Thats where the confusion comes from. In Blogs (i.e. S3 Buckets are enabled on AWS and we have read/write access into buckets. Given the major security risks of using passwords, public key authentication has become more widely used and recommended. @Listener Services in SFTP Adapater:Please find below comments if it helps to throw some light in same regard: I've set up the interface like you have described, but my SFTp adapter (sender CCV) gives the error message "Nullpointerexception" when I try to read the target file with content conversion mode. Following blog post illustrates how to configure connectivity between CPI DS and SFTP via public key. The private SSH string required to put into the SFTP server (into the file "authorized_keys") is then displayed in the text box at the top of the tool (copy it from there, don't use "Save public key" as this generates another format). CPI DS is up and running, including DS Agent service running on Windows. SAP-PI can use SFTP Adapter in below two manners: SFTP Sender Adapter: To pull files from SFTP servers folder, SFTP Receiver Adapter: To push files to SFTP servers folder, SFTP Sender Communication ChannelConfiguration, SFTP Receiver Communication ChannelConfiguration, If SFTP Server Fingerprint details are not available then we can ignore it by providing input as, SFTP Server Fingerprint can be generated using tool any standard tool like FileZilla, where we need to provide SFTP server details, while conencting tool will show SFTPs fingerprint, Authentication Method supported by SFTP server:It can be either, Here SFTP server is accessible via its user-id/password, In certificate based authentication, SSH clients and servers authenticate each other via public/private key pairs. PItoSFTP_Key.pub)using ssh-keygen from upload key itself. In SAP-PI, Private/Public SSH Key can be maintained using following steps: Go to nwa url page -> Configuration Management -> Security -> Certificates and Keys -> Key Storage -> Content -> Keystore Views. Just enter: You should now be inside your home directory. If there are problems connecting to your FTP Server, check your transfer mode. Go to CPI DS and create new Datastore with the following settings. This app is very useful for file transfer between combinations of PC folders, ftp servers, cloud storage services and mobile devices. Have you ever come across a problem like this? So now, when we list all the files in our home directory, we can already see the .ssh directory. The SFTP abbreviation is frequently used in error to describe FTPS. The client checks if the server is a trusted participant by evaluating a known_hosts file at client's side: if the server's public key is listed there-in . We were on SP5 previously as well, and it worked.. Only it is broken with the new patch. Is it possible to use SFTP without userid and password but only just public/private key with 4.3? Also User . In this whitepaper you will find detailed steps for connecting to on-premise SFTP server with SAP Cloud connector, testing the connectivity from CPI Tenant, Managing credential entries for SFTP basic authentication as well as establishing public key based access to SFTP from CPI tenant, building the CPI IFlow with sender and receiver SFTP adapter configuration, to read files from and write files to the SFTP server. This blog explains how to set up secure SFTP connection between SAP Cloud Platform Integration and SFTP without using user id & password (Basic Authentication), which is more secure to use. This directory should be created inside your user account's home directory. Created SSH private key successfully. This guide can be used specifically for Amazon Web Services (AWS Transfer for SFTP). Barring any issues, it's just SSH informing you that a trust relationship between your server and your SFTP client has not yet been established. In address field provide the SFTP server address, for username provide the username with SFTP server access (e.g. You have configured public key authentication from your CPI tenant to an SFTP server but the connection test returns the following error: . For secure SSH communication a known hosts file has to be deployed in the cloud integration tenant containing the public host key of the sftp server so that the sftp server will be trusted. If it can be done using windows10, thats ok, we need publicSSH key finally. How the issue got resolve ? In SAP PI, we can access SFTP server of client using SFTP Adapter. Thanks for your reading, any question kindly leave your comment below this. These keys are paired in such a way that any data encrypted with one can only be decrypted with the other. When you're done, exit your SSH session. Please highlight if any query/part need to be enlighten that may help everyone who refer this blog. For SSH based communication, the cloud integration tenant needs the host key of the sftp server, which must be added to the known hosts file and deployed on the cloud integration tenant in the next step. Trademark. Terms of use | Step 1: Generate a brand new SSH key. In summary, below files were created to find publicSSHKey: Thanks for the feedback. Alerting is not available for unauthorized users, Right click and copy the link to share this comment, Thanks for the blog. Trademark, Cloud Integration all versions ; SAP Integration Suite 1.0. Public Key Authentication from CPI to SFTP Server. Finally, the server uses the public key to decrypt it. Once you have an SFTP connection, navigate to your user account's home directory (on the server) and (just like in your client machine), create a .ssh directory. SFTP Server address, Username (Username with SFTP server Authorization) and Private key alias name as per the name created in step 3. Symptom. (LogOut/ You'll also be shown the key fingerprint that represents this particular key. PItoSFTP_Key.p12 )[2] In any Windows system, create Private SSH key from exported SAP-PIs .p12 file[2.1] Using tool OpenSSL, create .pem key from .p12 file[2.2] Create SSH Private Key (e.g. You have the following options: Public Key. Provide your Host, Port (By default 21) and Authentication as None and Click on Send. Save the public and private keys on your system. Monitoring > Manage Security > Connectivity Tests, Select SSH for SFTP server connection. SSH protocols enable the authentication of a client using traditional passwords or a public key with strong encryption. Enter command ssh-keygen. FTP adapter will be available for SAP Cloud Integration customers with the 04-July-2020 release. PItoSFTP_Key.key ) from .pem key[3] In SAP-PI: Upload Private SSH key file (PItoSFTP_Key.key file) into directory path /home//[4] In SAP-PI: Generate Public SSH key (e.g. For that vendor has given me a .p12 key pair file which i intent to upload in the keystore, I had few question on this hoping you could clarify them. Secure FTP for secure remote file transfer. Thanks again for the otherwise helpful blog. The file contains the public key in openSSH format, which can be used to be put to the sftp server. Both public-key and password authentication can be used on the same server. Create a new Resource Group. The FTP/SFTP command can automate the following: File uploads and downloads. The syntax is: ssh-copy-id -i id_rsa.pub user@remoteserver. For secure SSH communication a known host file must be deployed in the cloud integration tenant containing the public host key of the sftp server so that the sftp server will be trusted. 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