Change). I need an urgent help from your end. 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. Login to AWS Console. Thats where the confusion comes from. My i know how i can achieve this? Learn how your comment data is processed. (LogOut/ Exit your ssh session yet again and then login back in via SFTP with key authentication. 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. 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). 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. This method allows users to login to your SFTP service without entering a password authentication and is often employed for file transfer automation. Each key pair consists of a "public key" and . This app is very useful for file transfer between combinations of PC folders, ftp servers, cloud storage services and mobile devices. Using SSH Key Generator in PI-server, we can generate SSH public key from private key file, with below commands: ssh-keygen -y -f PItoSFTP_Key.key > PItoSFTP_Key.pub. Switch off the Keyboard-interactive authentication on the SFTP server. You have configured public key authentication from your CPI tenant to an SFTP server but the connection test returns the following error: . If everything is setup correctly you will get a success message with Check Host Key using Public Key Authentication. Are these the same? I hope this blog post helps you to understand the basic concepts of SFTP and FTP and Configuration the user credentials and testing the SFTP and FTP. 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. See my other comments. C:/OpenSSL/, Create .pem key file from .p12 file using below command in cmd prompt, openssl pkcs12 -in PItoSFTP_Key.p12 -out PItoSFTP_Key.pem, openssl rsa -in PItoSFTP_Key.pem -out PItoSFTP_Key.key, Enter pass phrase forPItoSFTP_Key.pem: pass1234. Login to your SFTP server via SSH. 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. I have seen so many blogs but something am missing for connection establishment. The server sends his public key to the client. Sorry for late reply..please find below input, hope it may help you if issue at your side still persists. Learn how to automate SFTP file transfers online at JSCAPE! To place files in a SFTP-Folder, the Receiver SFTP-Adapter channel gets activated when Sender side pushes data on it. You write in step 3: Upload Private SSH key file (PItoSFTP_Key.key file) into directory path /home//. How to: SAP CPI Team can retrieve the SFTP Host Key from the "Connectivity" tile in Manage Security Section in tenant itspaces once they have been given Host Name and Port of the SFTP the tenant will connect to. Furthermore, its not always necessary to upload it to the PO server, because basically every Linux , and by the way also Windows 10, system can be used to convert the key (I have ssh-keygen available on my Windows 10 PC and did it there). Now using tool OpenSSL (in any windows local desktop) perform below activities: ExtractOpenSSL in to a directory for e.g. Add the timestamp in format YYYYMMDD_HHMMSS-xxx before the extension of the filename. Copyright |
SAP-PI using Receiver SFTP communication channel will be able to send files into SFTP server folders. An authentication process that imposes two different kinds of requirements to the user (e.g., first, something they know, and, second, something they have) is called two-factor authentication. I've made also some analysis with xpi_inspector and get the warnings like "The string "" could not localized" or "Could not locate resource bundle entry" and "for resource bundle 'com.sap.aii.af.service.administration.impl.i18n.rb_AAM' and locale de". 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. Just type in 'yes', hit [enter], and enter your password. There is no need to maintain Private key /home/sid/, the key should be present in the NWA Keystore view that should be sufficient. The first thing you'll want to do is create a .ssh directory on your client machine. I believe the HANA Db used in the example can be applied to the IBP system as well, Alerting is not available for unauthorized users, Right click and copy the link to share this comment. XPI_Inspector on channels always helps for detailed logs. You might experience problems with . We break down the distinction and show you when to use each type of proxy. we need to upload it to the directory path /home// of SAP-PI server? 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. @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. Public Key Authentication from CPI to SFTP Server. 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. In this whitepaper, you will find the following: To access this white paper, please refer to the following wiki: How to Connect from SAP Cloud Integration to On-Premise SFTP Server. The SFTP abbreviation is frequently used in error to describe FTPS. Automated file transfers are usually done through scripts, but we have better solution. Ready to see how JSCAPE makes managed file transfer so much simpler? You'll need it later, so make sure it's a phrase you can easily recall. If you are requesting for both test and production instances, please provide both SFTP usernames and specify which public key you want . This online guide also comes with a video tutorial. Using SSH Key Generator in PI-server, we can generate SSH public key from private key file, with below commands: ssh-keygen -y -f PItoSFTP_Key.key > PItoSFTP_Key.pub, Here only SAP-PIs SSH Public is been shared and imported into SFTP server. Setting Up SFTP Public Key Authentication On The Command Line. Privacy |
SSH is a protocol for secure remote access to a machine over untrusted networks. How the issue got resolve ? Immediately after running the ssh-keygen command, you'll be asked to enter a couple of values, including: As soon as you've entered the passphrase twice, ssh-keygen will generate your private (id_rsa) and public (id_rsa.pub) key files and place them into your .ssh directory. For public key authentication at the sftp server the public key of the cloud integration tenants private key is needed in the sftp server. Visit SAP Support Portal's SAP Notes and KBA Search. Please highlight if any query/part need to be enlighten that may help everyone who refer this blog. Each must have access to their own private key, and others public key. That is not so clear in the blog, maybe you could clarify it. As you have mentioned (step-3) it should be maintained in PO level folder which is really not required, as SFTP check Keystore view for the keys during connection and not at any OS-level folder. 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. Key Based Authentication, Business requirement case: To push/write files into external SFTP-Servers specific folder, As shown in following screen, in SFTP Receiver Communication channel, provide sFTP-server details (, if specific sFTP-Servers Fingerprint string is been given from , else it can also be ignored Finger by giving input as , In SFTP server folder, files will be dropped with same original name by enabling , Same authentication inputs will be required in case of Sender Communication Channel Configuration too (where , Business requirement case: To pull/read files from external SFTP-Servers specific folder. Step 2: Open PuttyGen and load the private key that was exported in Step 1. JSCAPE MFT Server is platform-agnostic and can be installed on Microsoft Windows, Linux, Mac OS X and Solaris, and can handle any file transfer protocol as well as multiple protocols from a single server. Is this something specific to be provided by vendor or developer can enter this on its own will. Open Command line and navigate toC:\ProgramData\SAP\DataServicesAgent\conf\keys\sftp, As a result 2 files should be created underC:\ProgramData\SAP\DataServicesAgent\conf\keys\sftp. Unless you specified a port in the address, the default port is 990. The easiest way to do this would be to run the ssh-copy-id command. See comments below. You have the following options: Public Key. At your side, just re-try to export the key and run the cmd. At step "[Step-3] In SAP-PI: Upload Private SSH key' file", may I know why do. In the screenshot below, we used ls -a to list all the files and folders in our home directory. Fail: sends an error message in case files already exists, Ignore: ignores the existing file and doesnt send an error message, Override: replaces existing file and saves it under existing name, You can configure this parameter by entering a dynamic expression such like${property.property_name}or${header.header_name}. This file will be used to hold the contents of your ssh public key. CPI DS is up and running, including DS Agent service running on Windows. The SFTP server will respond with the message "Successfully reached host," and it will generate the Host Key. (It's also possible that PO runs on a Windows server, then it might not have ssh-keygen. So its temporary and has no further usage. SSH Key attached: General notes: The Public Key must be provided in .pub or .txt format otherwise we are unable to install it. 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. Copy the Host key for the SFTP from above screenshot should be deployed in the existing known_hosts file. The file contains the public key in openSSH format, which can be used to be put to the sftp server. In this post, we'll walk you through the process of setting up this kind of authentication on the command line. Save. I don't think this question has been addressed yet. Check the database table. 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 . It's easier to do this on a GUI-based interface but if you prefer to do things on the terminal, this post is for you. To establish SSH connection between SAP Cloud Integration (former CPI) and SFTP server, you need to add the below parameters to the <known_hosts> file and deploy it on the tenant: Hostname; Key Algorithm; Host Key (encoded using base64) However you do not know how to get the Host Key of SFTP server to prepare the <known_hosts> file. Nice way to illustrate with pictures. Upload SSH Key into AWS Transfer for SFTP. We were on SP5 previously as well, and it worked.. Only it is broken with the new patch. Also User/Password can be used instead, in this case user credentials have to be deployed in the cloud integration tenant. The syntax is: ssh-copy-id -i id_rsa.pub user@remoteserver. SSH is a replacement for telnet, rsh, rlogin. The most commonly used high-availability clustering configurations are Active-Active and Active-Passive. Terms of use |
Monitoring > Manage Security > Connectivity Tests, Select SSH for SFTP server connection. SAP HCI - SAP Cloud Platform Integration: 2017/07/09: 2017-07-09 17:05:24: Debug/Logging Headers, Properties, Payload Body using Groovy Scripts: SAP HCI - SAP Cloud Platform Integration: 2017/07/07: 2017-07-07 01:06:43: Simple Hello iFlow using Sender SOAP Adapter, WSDL and Mapping Step: SAP HCI - SAP . Enter command ssh-keygen. SFTP (full form SSH File Transfer Protocol) is a part of the SSH protocol suite. Afterwards, the communication will be encrypted. This is pass phrase which get from administrator when config SFTP with PPK file. In blog showing SSF key assignment. chmod 700 authorized_keys. SFTP server authenticates the calling component (tenant) based on a public key. Alerting is not available for unauthorized users, Right click and copy the link to share this comment. Learn about AES encryption and its vital role in securing sensitive files you send over the Internet. 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. Can this be acheived using FTP conenctor in CPI ? 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. On the Add User Credentials page, enter the credentials and deploy the following entries: How to Connect from SAP Cloud Integration to On-Premise SFTP Server. PItoSFTP_Key.key ) from .pem key, In SAP-PI: Upload Private SSH key file (PItoSFTP_Key.key file) into directory path /home//, In SAP-PI: Generate Public SSH key (e.g. Secure FTP for secure remote file transfer. Provide details as Entry Name, Algorithm as RSA and Key length 1024 or 2048 . Login to SSH Server and Verify the permission of the transferred file. The article, 2 Ways to Generate an SFTP Private Key, will show you a couple of GUI-based methods that arrive at the same result. Below is how the generated key will look like. The easiest way to do this would be to run the ssh-copy-id command. After setting up the SFTP Channel in iflow deploy the iflow. Copyright |
To make this configuration setting work, you need to define the user name and password in aUser Credentialartifact and deploy the artifact on the tenant. Download your free 7-day trial of JSCAPE MFT Server now. In the creation dialog select and define the key specific values and define a validity period. Learn more about using Public Key Authentication. Visit SAP Support Portal's SAP Notes and KBA Search. Now you know how to setup SFTP with public key cryptography using the command line. Furthermore, forpublic keyauthenticationwith the sftp server, a private key hasto be maintained in thecloud integration tenant key store. The customer retains the private keyon their server and provides the public key to SuccessFactors. You'll then be asked to enter your account's password. PItoSFTP_Key.pub)using ssh-keygen from upload key itself, Go to SAP-PIs netweaver (nwa) page using below url, Go to nwa url page => Configuration Management => Security => Certificates and Keys => Key Storage => Content => Keystore Views, To create a new keystore view, click on button Add view, Enter View name, Description and click button Create, Create a Keystore Entry in same KeystoreVview which just has created above, Provide details as Entry Name, Algorithm as RSA and Key length 1024 or 2048, validity time, Follow the rest step to complete creation of Keystore Entry, Export Keystore View and Keystore Entry (, Select row of Keystore view and its respective Keystore Entry, Click on button Export Entry -> export format PKCS#12 Key Pair -> enter a password here and note it down, Click on link Download to extract .p12 file for example file name is . Please submit an incidentunder the component LOD-SF-PLT-FTPS for the technical team to proceed with the SSH key upload in the SF SFTP account. Privacy |
For more clarity, I have updated the blog with summarized steps, which may help you, please have a look once. 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. Plain FTP no encryption: No encryption will be applied, for productive use (not recommended). Connect to SCC. SFTP authentication using private keys is generally known as SFTP public key authentication, which entails the use of a public key and private key pair. Thanks for the blog. Deployment steps - Portal. If you (either basis team) can manage creation of SSH keys in SAP-PI/PO (AEX) system itself, then there is no need for upload from external source into directory path /home//. Save the public and private keys on your system. 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. When the server asks the client to authenticate, the client uses the private key to encrypt some data that is already known by the server (e.g. FTP (File Transfer Protocol) is a standard network protocol used to transfer files from one host to another host over a TCP-based network, such as the Internet. Vitural host : alias name for external system call in ( ex : sftp.cloud) Copyright |
Open user which will be used for connectivity with CPI DS. So now, when we list all the files in our home directory, we can already see the .ssh directory. For the authentication step based on public key: User name contained in the deployed artifact with name given by the . Following blog post illustrates how to configure connectivity between CPI DS and SFTP via public key. Our patch level is 1000.1.0.5.43.20210728095300. 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. Step 1: Generate a brand new SSH key. To establish SSH connection betweenSAP Cloud Integration (former CPI) and SFTP server, you need to add the below parameters to thefile and deploy it on the tenant: However you do not know how to get the Host Key of SFTP server to prepare the file. ( Irrespective of how the keys have generated the keys just needs to be present in Keystore view and not any folders), If you see the steps followed by us, it is like:[1] In SAP-PI: Create KeyStore View and Keystore Entry and export it with PKCS#12 Key Pair file format having extension .p12 (e.g. Yes, the purpose to upload the key was to create public-key using SSH-Key gen tool in SAP-PO. Country/Region -> To be asked from Vendor. Visit SAP Support Portal's SAP Notes and KBA Search. 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. openssl pkcs12 -in PItoSFTP_Key.p12 -out PItoSFTP_Key.pem" on Unix/Linux, I got the error "unable to load private key. You have configured public key authentication from your CPI tenant to an SFTP server but the connection test returns the following error:com.jcraft.jsch.JSchException: Auth Fail, CPI, HCI, Auth Fail, SFTP, SFTP Server, sender, receiver, SFTP adapter, public key, private key, communication channel, Inbound, Outbound, authentication, known hosts file, Key Store, SSH Key, SFTP channel, IP AllowList , KBA , LOD-HCI-PI-CON-SOAP , SOAP Adapter , Problem. It provides secure file transfers over SSH to provide access to all the shell accounts on a remote SFTP server. We are trying to access an on-premise SAP system from CPI, and although the Connectivity test (SSH) is working properly with the locationID, we can't connect to the SFTP from Groovy script (actual iFlow). These keys are paired in such a way that any data encrypted with one can only be decrypted with the other. First, take a short look this diagram. This time, you'll be asked to enter the passphrase instead of the password. sFTP Processing Parameters, Timestamp to File Name, Message-ID to File Name, Write Mode, etc. once SFTP server IP details provided to connect, SFTP server asks to enter password in Password pop-up using keyboards. 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. Click "Conversions" and export OpenSSH key. Jul 28, 2020 SAP Cloud Platform Identity Authentication service is a multi-tenant system where tenants share the hardware and software and use dedicated database instances for persistence. Click more to access the full version on SAP for Me (Login required). Max. First you try to identify whether this error is related connectivity issue or due to CCV settings, make use of SFTP sender to just pick up files, once its ok, then go for CCV settings. SSH keys also allow system admins to avoid manually logging in with a password, to automate systems and configuration management. Legal Disclosure |
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. Learn how to set this up in the command line online. 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. Welcome to the On-Premise SFTP server Connectivity in SAP Cloud Integration guide. Download Public OpenSSH Keywill create an .pubfilein the download directory. 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 any standard tool like FileZilla, where we need to provide SFTP server details (IP/Port/User-id/Password) and while connecting, tool will show SFTPs fingerprint, While connecting SFTP- Server, SAP-PI uses following details for authentication in its SFTP-Adapter, For reference, following screen of SAP-PIs SFTP-Adapter is been given, Here SFTP server is accessible via its user-id/password, Here SFTP server is accessible via its user-id/password but it requires keyboard interactions. Choose Create -> SSH Key to create a key pair for the sftp connectivity. Let JSCAPE help you understand the difference in active & passive FTP. OpenSSL requries .p12 format key, so we exported same from NWA and created private key with PItoSFTP_Key.key format which was required by SSH-KeyGen of SAP-PI/PO to generate .pub key (Public SSH Key). Fill in the information. The FTP/SFTP command can automate the following: File uploads and downloads. Change), You are commenting using your Facebook account. Hi, the confusion is clarified now I think.
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