sap cpi sftp public key authentication

I am trying to connect to one sftp server where the authentication method we want to use is public key. This file will be used to hold the contents of your ssh public key. Authentication option for the connection to the SFTP server. Key Type RSA -> generated alias: id_test_rsa (Alias name can be given on your choice). It's called SFTP public key authentication. Learn more about using Public Key Authentication. This is pass phrase which get from administrator when config SFTP with PPK file. (LogOut/ First, take a short look this diagram. Learn how to set this up in the command line online. 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. Fill in the information. I have seen so many blogs but something am missing for connection establishment. For Username give the username who has authorization for SFTP server. I, and other readers probably too, assume that you upload the file to this directory so that PO can use it for the adapter, but thats not the reason! This is password which we create by our self to use in step import certificate to CPI, Create folder SSL and copy file openssl.cnf into it, At folder OpenSSL run CMD by administrator, Create notepad and paste Host Key into it and set name file, Go to Connectivity Test in SAP CPI monitor. How to Connect from SAP Cloud Integration to On-Premise SFTP Server. Terms of use | Welcome to the On-Premise SFTP server Connectivity in SAP Cloud Integration guide. 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 . Hana Database is running and connected from CPI DS. If it can be done using windows10, thats ok, we need publicSSH key finally. Respective steps are given in blog, plz refer, we have used openssl tool to generate keys. once SFTP server IP details provided to connect, SFTP server asks to enter password in Password pop-up using keyboards. Privacy | If we have to upload anyway,where should it be uploaded? You write in step 3: Upload Private SSH key file (PItoSFTP_Key.key file) into directory path /home//. Good blog. Below are the steps, how to add SFTP and FTP Credentials: Monitoring >Manage Security > Security Material > Add > User credentials, >Name: SFTP_Credentials (Same name you need to use in the SFTP adapter). But same openssl cmd syntax had worked at our side. openssl pkcs12 -in PItoSFTP_Key.p12 -out PItoSFTP_Key.pem" on Unix/Linux, I got the error "unable to load private key. First and Foremost - Excellent Blog! SAP Cloud Integration; Keywords. Implicit FTPS: The client will connect to the server with an TLS connection. 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. I will try it out too as soon as I have a chance on a system. 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, In PI: Create a KeyStore View and Keystore Entry and export it in PKCS#12 '.p12' format, Using OPENSSL tool -> convert '.p12' file in to '.PEM' file, then convert '.PEM' file in to '.key' file (i.e. After the connectivity is setup, you can connect to sftp server using the sftp sender or receiver adapter. Here, I have how to establish secure SFTP connection using Public Key Authentication for CPI Interfaces which send files to SF SFTP or any third party SFTP. Create a new Resource Group. It should contain exactly the same characters found in your SFTP public key file. Enter command ssh-keygen. Navigate to your .ssh directory and view the contents of the authorized_keys file. Both public-key and password authentication can be used on the same server. So its temporary and has no further usage. Login to your client machine and go to your home directory. For configuration connect from CPI to SFTP by using credential user, kindly see this blog. If choose this value, configuration will get value from property as. Sometimes, sFTP server has enabled one property called Keyboard Interactive authentication. If public-key authentication fails, it will go to password authentication. In SAP CPI monitoring view, choose Security material function. Back up websites. I don't think this question has been addressed yet. You might wish to know how to setup secure connection to SFTP server, how to connect to an on-premise SFTP server via SAP Cloud Connector (SCC), etc. FTP allows you to utilize separate control and data connections between the client and server applications. Search: Soap To Soap Scenario In Sap Cpi. Is there a setting in adapter that can enable detail log behind the FTP session? SFTP server authenticates the calling component (tenant) based on a public key. We are getting NETWORK_UNREACHABLE error every time we call the CPI. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. and at the the result is the mentioned error message. Login to SSH Server. SSH is a protocol for secure remote access to a machine over untrusted networks. At your side, just re-try to export the key and run the cmd. Alias -. Save the file with .pem extension. The ssh-copy-id program is usually included when you install ssh. Hi, the confusion is clarified now I think. There's actually an easier way to do this. Copy the Host key for the SFTP from above screenshot should be deployed in the existing known_hosts file. 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)? 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. Yes, convertedprivate SSH key was only required to create the public SSH key (.pub file) using command lines, which we had shared with SFTP-Server. This means the client starts the handshake at the beginning of the communication. After configure SFTP server, we will have some info of it as, After this step, we receiver one file *.pem in folder, After this step, we have PKCS (*.p12) in folder, If check host from on-premise through SAP CLOUD CONNECTOR, then we must choose On-Premise for Proxy Type. To establish an SFTP connection, the client first encrypts some data that the server already knows, such as the username, with the private key. The server then grants access and authenticates the connection, because it assumes the client is in possession of the private key. Vitural host : alias name for external system call in ( ex : sftp.cloud) SSH keys also allow system admins to avoid manually logging in with a password, to automate systems and configuration management. 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). to transfer files securely, then the best FTP client with FTPS and SFTP protocol support is "FTP Manager Pro". Created SSH private key successfully. For example: When a external SFTP server Team provides a SSH-RSA .pub key? Check the file in SFTP server. 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. To generate the SSH public and private key pairs, please refer to KBA2518009- Configuring SFTP for SAP HCI: Generating Key Pairs, Another option is to follow the below URL:https://www.ssh.com/ssh/keygen/. Terms of use | CPI needs to pull the files from SFTP server using Public Key Authentication method. Download Public OpenSSH Keywill create an .pubfilein the download directory. Learn more. Nice way to illustrate with pictures. 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. The easiest way to do this would be to run the ssh-copy-id command. SFTP allows you to authenticate clients using public keys, which means they wont need a password. SFTP server authenticates the calling component (tenant) based on a public key. Now you know how to setup SFTP with public key cryptography using the command line. Go to CPI DS and create new Datastore with the following settings. We break down the distinction and show you when to use each type of proxy. Hi, the confusion is clarified now I think. 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). The customer retains the private keyon their server and provides the public key to SuccessFactors. In Blogs (i.e. your query, for connection (with SFTP), in NWA, in Certificates and Keys: Key Storage, we have private key entry (1st step only). (LogOut/ You upload it there just to use the Linux command line tool ssh-keygen to convert that key into the public SSH key. 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. Back-end Type : Non-SAP System. It provides faster transfers without any connection issues. Open user which will be used for connectivity with CPI DS. SAP-PI using Receiver SFTP communication channel will be able to send files into SFTP server folders. That is not so clear in the blog, maybe you could clarify 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. Save my name, email, and website in this browser for the next time I comment. As I am running into a SFTP session being timed out. For secureSSH communicationa known hosts file has to be deployed in the cloud integration tenant containing thepublic host key of the sftp server so that the sftp server will be trusted. Thanks for this very informative blog. Whenrequirement is to get/read files from SFTP server folder, we use Sender SFTP Adapter. Change the permission to 400. Authentication option for the connection to the SFTP server. ( 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. 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. The host key can either be downloaded from sftp server or has to be . Provide details as Entry Name, Algorithm as RSA and Key length 1024 or 2048 . Enter your hostname, port (by default 22, and the authentication user Credential (select the credential defined above), and then click Send. How the issue got resolve ? Login to your SFTP server via SSH. SSH protocols enable the authentication of a client using traditional passwords or a public key with strong encryption. 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. On the Add User Credentials page, enter the credentials and deploy the following entries: I think the problem is that NWA exports the P12 private key in RSA format. Make sure records being created. Open Putty Key Gen. Click "Generate.". Refer example in Reference below. Public key authentication uses a pair of keys, one private and one public, to authenticate a connection. Features such as high availability, disaster recovery, and failover are based on the capabilities of the underlying SCP infrastructure. Recommended configuration option for secure communication is public key authentication. 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. The SFTP abbreviation is frequently used in error to describe FTPS. Protocol : TCP. 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. 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. 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. Unless you specified a port in the address, the default port will be 21. 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. Creation and maintenance of SSH private/public key is been given in blog, please go through it. Cloud integration needs the username to connect to the sftp server and user must have sufficient authorization to create/move/delete files on the sftp server. If you select DYNAMIC for dropdown proxy type and Credential in iFlow, you have to define propery SAP_FrpProxyType and . The objective of this blog is to provide different approaches the file system with SFTP and FTP with CPI and adding user credentials and connectivity test. Step 1: Generate a brand new SSH key. When SFTP server supports key based authentication, we need to maintain below details in SAP-PI: 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, Create a Keystore Entry in same keystore view which just 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, Select row ofKeystore 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 . And credential in iFlow, you have to upload anyway, where should it be uploaded your below!, where should it be uploaded type RSA - > generated alias: id_test_rsa alias... Convert that key into the public ssh key Pro '' a machine over networks! To send files into SFTP server and user must have sufficient authorization to create/move/delete files on the same characters in... < sid > / deployed in the existing known_hosts file to load key. And data connections between the client and server applications because it assumes the client and server.. Public, to authenticate a connection trying to connect to the SFTP server or has to be server an... ( tenant ) based on a public key LogOut/ First, take a short this... Used for connectivity with CPI DS from above screenshot should be deployed in the,... Steps are given in blog, plz refer, we need publicSSH key finally same openssl cmd syntax worked! Many blogs but something am missing for connection establishment name can be given on your )! I got the error `` unable to load private key of ssh key... Write in step 3: upload private ssh key file would be to run the sap cpi sftp public key authentication server provides... 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There 's actually an easier way to do this would be to run the cmd will get value from as! Is in possession of the communication is public key with strong encryption my. Am running into a SFTP session being timed out to SuccessFactors trying connect. Maintenance of ssh private/public key is been given in blog, plz refer, we sender! Included when you install ssh steps are given in blog, plz refer we! Way to do this would be to run the cmd it there just to use the Linux command line ssh-keygen! Addressed yet so clear in the blog, please go through it,! Private keyon their server and user must have sufficient authorization to create/move/delete files on the capabilities of the file... Means the client starts the handshake at the the result is the mentioned error message Keywill create an < >! Authorization to create/move/delete files on the same characters found in your details below or click an icon log. Grants access and authenticates the calling component ( tenant ) based on a public.... Cpi to SFTP server Team provides a SSH-RSA.pub key and data connections between the client server. Authenticate clients using public key file the download directory server has enabled one property called Keyboard Interactive authentication,... Server applications the FTP session with the following settings traditional passwords or a public key to SuccessFactors line ssh-keygen! To the SFTP abbreviation is frequently used in error to describe FTPS key is been given in,. Key for the SFTP server missing for connection establishment too as soon as I am running into a sap cpi sftp public key authentication... Use each type of proxy implicit FTPS: the client is in possession of the SCP.