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The other possibility is “RFC Error – Instance may be unreachable”… good luck solving that one 😱. One is “Restart required – SNC is activated, please restart the server instance” (to implement at least the default profile changes) – luckily that is the only status I have encountered. You’ll maybe have noticed that SAP makes you scroll down to read all the advice-text, anyway there are 2 possible statuses (or should that be “statii”?). Snc/identity/as (the value we defined in the previous step).Ĭlick “Continue” to step “Server Instance Status”: Snc/gssapi_lib (specifying the filepath of the relevant library, we trust the wizard gets this right)
Snc/enable (which will change to be “1” i.e. We won’t describe all those parameters, but here are explanations of three of them: Here we get a list of the proposed new values of various parameters of the default profile (the same default profile that you can view or change from tcode RZ10). So we click “Continue” to go to the next step, which is “Default Profile Parameters”: So this SNC Identity is the identity of the SAP system for SNC purposes – for example, when a SAPGUI client tries to connect to the SAP system and use SNC encryption or SSO, then the client needs to provide this SAP system’s SNC Identity. For this blog we are keeping the default. So here we decide whether to accept the default suggestion for SNC Identity, or if you like you can define your own. When you are ready, click “Continue” to – you guessed it already – continue to the next step of the wizard, “SNC Identity”: As my SAP system has SID=NPL, so the suggested SNC Identity is going to be “CN=NPL”. There is also some generic advice about SNC configuration, which you should read. (This blog just assumes that the check was successful). Obviously it’s important that this screen contains the message: “The prerequisites for configuring SNC for your ABAP application servers have been checked successfully”. Click on “No” to not show profile errorsĩ.
Go back to previous screen “Edit Profiles”Ĩ. Select profile “DEFAULT” and click “Extended maintenance”Ħ. Go back to previous screen “Edit Profiles”Ĥ. Go to the menu “Utilities” -> “Import Profiles” -> “Of active servers”ģ. “Complete the following steps in order to import your DEFAULT profile without making any changes:Ģ. The solution to this issue is given in SAP Note 2664502: You might get this error, at least I did: Now we go to tcode SNCWIZARD (or /nSNCWIZARD if navigating from other transactions than the home screen). Tcode is STRUST, double-click on the slot in left-hand panel for SNC SAPCryptolib: Prepare for PSE-Method on arm64 by copy-pasting a libraryĪppendix: Wireshark shows why SNC encryption is valuable Set up SNC using SNCwizard on the target SAP systemįirst we note that before using the SNCwizard, our demo SAP system does not have an SNC SAPCryptolib PSE configured. Switching off SLC-Method and enabling PSE-Method SSO via SLC-Method using a PKCS12 file and Apple Keychain Access (amd64, arm64)
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Install SLC 3.0 and add NPL server certificate to Apple Keychain Access (amd64, arm64)Įncryption-Only via SLC-Method (amd64,arm64)
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Get stuff from SAP Software Centre (amd64, arm64) Set up SNC using SNCwizard on the target SAP system
(The complexity comes from needing a library at logon-time which is not included in the PSE-focused SAR archive, but is available and copy-pastable once you install SLC 3.0 🙂).įinally we have an Appendix, where we use Wireshark 😱 to show why encrypted SAPGUI traffic is really a good thing.
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Also we describe how to switch between SLC-Method and PSE-Method.Īfter that, we cover the slightly more complex case: for an arm64 MacBook, Encryption-Only and SSO, using the PSE-Method. Then we describe Encryption-Only and SSO using the SLC-Method – these steps are essentially the same for both amd64 AND arm64 cases. Next we describe, for an amd64 MacBook, Encryption-Only and SSO, using the PSE-Method.
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Then we download and extract the files we need from SAP Software Downloads. We begin by showing how to set up an SAP system to handle the server-side SNC activities – SAP provides an easy workflow (tcode SNCWIZARD) to help us do this. We show how to set up SAP SNC Encryption (both Encryption-Only and SSO), on the two main kinds of Apple MacBook OS architecture, using X.509 certificates handled either by the PSE-Method (using SAP PSEs “Personal Security Environments”) or by the SLC-Method (using a downloadable helper-app called SAP Secure Login Client 3.0 “SLC 3.0”).
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