I will try it out too as soon as I have a chance on a system. Yes, you are right, we had ssh-keygen in SAP-PO server only, so we had uploaded the key into respective dir and created public key. Go to Monitoring > Manage Security > Connectivity Tests, Select FTP for FTP server connection. You have configured public key authentication from your CPI tenant to an SFTP server but the connection test returns the following error: . I have the private key entry maintained in NWA as shown below: To access the SFTP box from filezilla is need .ppk file. Furthermore, for public key authentication with the sftp server, a private key has to be maintained in the cloud integration tenant key store. Change), You are commenting using your Twitter account. Configure SAP CPI with SFTP using Public key based authentication: Step 1: Host Key retrieval from SAP CPI - Connectivity For SSH based communication, CPI tenant needs the host key of the sftp server, which has to be added to the known hosts file and deployed on the cpi tenant. And here's what the contents of a SFTP public key file (id_rsa.pub) looks like: Again, we'd like to make sure only the owner can read, write, and execute these files. It helps to solve the issue of different end host configurations. Please let me know the steps i have . AWS Transfer for SFTP service is enabled in AWS Console on top of S3 Bucket Service. private SSH Key), In PI: upload '.key' file in to directory /home/sid/, In PI: Using SSH-key-Generator, create public SSH key ('.pub' file) from '.key' file, Share this '.pub' file to SFTP-Server team. Is it possible to use SFTP without userid and password but only just public/private key with 4.3? the user-name); the client sends . Keys can be generated in PI/PO or any external tool, but the query is where do we need to maintain those keys in PI/PO for connection? If we have to upload anyway,where should it be uploaded? The passphrase: This is a phrase that functions just like a password (except that it's supposed to be much longer) and is used to protect your private key file. Do we know if SAP changed something? Enter Server host name, default port for SSH is 22. (LogOut/ Now it's time to copy the contents of your SFTP public key to the authorized_keys file. We are getting NETWORK_UNREACHABLE error every time we call the CPI. Terms of use | There's actually an easier way to do this. Enter your hostname, port (by default 22, and the authentication user Credential (select the credential defined above), and then click Send. Back up websites. Actually, We can use externalize parameter. 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. To archive read files, we can use below parameters: Given Archive name will move same read file to mentioned Archive path with prefix ARC_ in original filename. Copyright | 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. I hope you can advise me. Here, rather than the SFTP server ask for Password, it asks for Enter Password i.e. The file contains thepublic keyin openSSH format, which can be used tobe put to the sftp server. This method allows users to login to your SFTP service without entering a password authentication and is often employed for file transfer automation. i would like to test an existing interface working in production using filezilla. Step 1 : Configure at SCC for SFTP node. Yes, its true, if we can manage creation of SSH keys in SAP-PI/PO itself, then there is no need for such import from external source into /home/sid/ of SAP-PI/PO. Schedule your demo now. 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). 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. I have provided the step by step description on what all configurations required from SAP Cloud Platform Integration (CPI) Steps to Use Public Key Authentication: For secure SSH [] Login to SSH Server and Verify the permission of the transferred file. 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. That is not so clear in the blog, maybe you could clarify it. Learn more. You upload it there just to use the Linux command line tool ssh-keygen to convert that key into the public SSH key. Public key authentication relies on the ability of public/private key-pairs described above, that is, data encrypted with one key can only be decrypted with the other. Transfer the public key to SSH server via SFTP. Create a new Resource Group. Both public-key and password authentication can be used on the same server. Note: If you haven't assigned any passphrase when you created your pair of keys using ssh-keygen, you would have been able to login just like this: That's it. Our patch level is 1000.1.0.5.43.20210728095300. Learn how to set this up in the command line online. 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. Trademark, Cloud Integration all versions ; SAP Integration Suite 1.0. Thanks for your reading, any question kindly leave your comment below this. The most commonly used high-availability clustering configurations are Active-Active and Active-Passive. The ssh-copy-id program is usually included when you install ssh. Navigate to AWS Transfer for SFTP Service. 'xxx' is a random . The server sends his public key to the client. The server then grants access and authenticates the connection, because it assumes the client is in possession of the private key. Terms of use | Create and deploy the SSH Key. 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. This is a working scenario in our premises, so I do not have any reason to doubt. An SSH key contains only a public key, and no information about the owner of the key. To access SFTP server from SAP-PI using SFTP adapter, below details are required: Authentication methods supported by SFTP server can be of either following types: Summarized steps to maintain SSH key in SAP-PI, are as follows: [Step-1] In SAP-PI: Create KeyStore View and Keystore Entry and export it with PKCS#12 Key Pair file format having extension .p12, [Step-2] In any Windows system, create Private SSH key from exported SAP-PIs .p12 file, [Step-3]In SAP-PI: Upload Private SSH key file, [Step-4]In SAP-PI: Generate Public SSH key. Visit SAP Support Portal's SAP Notes and KBA Search. These keys are paired in such a way that any data encrypted with one can only be decrypted with the other. We were on SP5 previously as well, and it worked.. Only it is broken with the new patch. Would you like to try this yourself? In SAP PI, we can access SFTP server of client using SFTP Adapter. 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. To place files in a SFTP-Folder, the Receiver SFTP-Adapter channel gets activated when Sender side pushes data on it. Copyright | One more hint for readers: step 4 can also be done by the freeware tool puttygen (PuTTY Key Generator). Connect to SCC. (It's also possible that PO runs on a Windows server, then it might not have ssh-keygen. Thats where the confusion comes from. Additionally, JSCAPE enables you to handle any file type, including batch files and XML. Here in example the username is given usrnme_sftp. The host key can either be downloaded from sftp server or has to be . Plain FTP no encryption: No encryption will be applied, for productive use (not recommended). Now using tool OpenSSL (in any windows local desktop) perform below activities: ExtractOpenSSL in to a directory for e.g. It provides faster transfers without any connection issues. This time, you'll be asked to enter the passphrase instead of the password. SFTP server authenticates the calling component (tenant) with two authentication methods: based on a public key and based on user credentials. Next, the client returns the encrypted data to the server. Step 2: Open PuttyGen and load the private key that was exported in Step 1. Welcome to the On-Premise SFTP server Connectivity in SAP Cloud Integration guide. 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. Is there a setting in adapter that can enable detail log behind the FTP session? Add Timestamp to filename. Terms of use | Privacy | Within SAP Cloud Integration, you can use SFTP sender adapter to read data from SFTP server and use SFTP receiver adapter to write data to SFTP server. if you have already created the key in the viewstore, why would you import it back again? Run the ssh-keygen command: Not familiar with SFTP keys? If the server can find a match between the known data and the decrypted data, then it assumes it was encrypted with the private key. In SAP CPI monitoring view, choose Security material function. Choose the subscription you want to create the sftp service in. To establish an SFTP connection, the client first encrypts some data that the server already knows, such as the username, with the private key. For the authentication step based on user credentials: Credentials from the deployed artifact with the name given by the Credential Name parameter are evaluated by the system to authenticate the tenant against the SFTP server. I think the confusion is that you are using the words "SAP-PI server" for both the viewstore server and the location where you upload the key. 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 .