On 16.03.22 23:39, William Brown wrote:
An orphan key doesn't look nice, but I am more worried about the unnecessary
stuff in the databases

So the orphan key is the "original" server-cert key that was orphaned since you 
loaded your own key. It's honestly harmless. Everything else appears to have imported 
correctly which is excellent!

OK, agreed. It is harmless, but also not needed. Usually, I choose to use only 
one private key in my key3.db or key4.db.
My assumption was, that if I provide certificates in the tls subdirectory, the 
ssca directory is not even used at all,
since the key and cert that are effectively used are stored in the config 
directory and its databases.
and the failing openssl certificate validation.

We'll need to see the output of 'openssl -_client -connect url1.XXXXXX.de:3636 
-showcerts' to see what is or isn't self signed in the chain. It could just 
simply be that your ROOTCA/ServerCA aren't trusted by your openssl install of 
the host.
Due to NDA I can't provide more details. But the problem is not related to 
self-signed-certs as indicated by
openssl's error messages, it's really that I didn't properly specify 
rootCA/ServerCA.

It works now with:

cat XXXXXXROOTCA2015.crt > ./chain.crt
cat XXXXXXServerCA2015.crt >> ./chain.crt
openssl s_client -connect ur1.sedevsso.XXXXXX.de:3636 -CAfile 
<path>/ca/chain.crt :

...
...
SSL handshake has read 4776 bytes and written 427 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-GCM-SHA256
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
     Protocol  : TLSv1.2
     Cipher    : ECDHE-RSA-AES128-GCM-SHA256
     Session-ID: 
003BB677D15FC7C0490D3E795F193AB103D1E579D2F554086B63853DA9916525
     Session-ID-ctx:
     Master-Key: 
D050F13AD8343F825E4602F57BFFDB7BFBF38438E9ED497C9626F973C7772EC0D52C92B68E4BE087AF49C1DE4C2FB06A
     Key-Arg   : None
     Krb5 Principal: None
     PSK identity: None
     PSK identity hint: None
     Start Time: 1647338825
     Timeout   : 300 (sec)
     Verify return code: 0 (ok)
---
You should only need ROOTCA for -CA, since the chain will be presented by 
389-ds itself as you have the chain on the server. Otherwise yep, sounds like 
you just need to ensure clients have the ca cert setup correctly.

Happy to help!

This is to confirm, that

openssl s_client -connect ur1.XXXXXX.XXXXXX.de:3636 -CAfile /root/389ds/tls/ca/XXXXXROOTCA2015.crt

works. So, yes, only the root cert of a chain (and not the whole chain) is needed for server-cert validation done by openssl.

SSL handshake has read 4836 bytes and written 427 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-GCM-SHA256
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES128-GCM-SHA256
    Session-ID: 00105D8E1E655FA19A50EE017FF268699100CB1ED8B3B5CF4DF7A823D98ED724
    Session-ID-ctx:
    Master-Key: C6FD29B95BCAC68C69D6FD995E01416857B5DAF5CBFED0E679C730CC4017BF75D0D66529E11383A9099932E89042BC06
    Key-Arg   : None
    Krb5 Principal: None
    PSK identity: None
    PSK identity hint: None
    Start Time: 1647513405
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)
---


You are the man, William!
Thank you so much.

Still, I suggest to remove the ssca stuff, if a customer provides his own cert chain. Even if everything works properly, I think it's unnecessary to store the ssca cert and key in the databases. From a troubleshooting perspective it's a bit misleading
in my opinion. Or is there a benefit of keeping it that I do not see?

Thanks and best regards,
  Lutz





--
Sincerely,

William Brown

Senior Software Engineer,
Identity and Access Management
SUSE Labs, Australia
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Sincerely,

William Brown

Senior Software Engineer,
Identity and Access Management
SUSE Labs, Australia
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