I think this version is too old.thre was related work not long ago.

Rainer

Sent from phone, thus brief.

Roman Möller via rsyslog <rsyslog@lists.adiscon.com> schrieb am Mo., 31.
Juli 2023, 18:18:

> Hello subscribers,
> we are using rsyslog with TLS to collect logs transport encrypted from
> different logsources.
> The used certificates are generated by our company CA for the rsyslog
> server but also for the logsources.
>
> I have used these setting until now (filename gives hint about content):
> $DefaultNetstreamDriver gtls
> $DefaultNetstreamDriverCAFile
> /etc/pki/rsyslog/rootCA_and_intermediateCA-1.pem
> $DefaultNetstreamDriverCertFile /etc/pki/rsyslog/rsyslogServer_and_
> intermediateCA-1.crt
> $DefaultNetstreamDriverKeyFile /etc/pki/rsyslog/rsyslogServer.key
>
> And the reception of logs worked pretty well so far.
>
> Now we have a new intermediate CA and the certificate chains look like
> this:
>                                +------------+
>                                | Root-CA |
>                                +------------+
>                                          |
>             +--------------------+--------------------------+
>             |
>   |
>             v
>   v
>    +--------------------------+
>  +--------------------------+
>    | Intermediate CA-1 |                   | Intermediate CA-2 |
>    +--------------------------+
>  +--------------------------+
>              |
>     |
>              v
>     v
> +-----------------------------------+
>  +---------------------------------+
> | Generated the certificate |           | Generated certificates   |
> | for the rsyslog Server        |           | for yet other logsources |
> | but also for other               |
>  +---------------------------------+
> | logsources                           |
> +-----------------------------------+
>
> Our rsyslog Server is not able to accept syslog-TLS encrypted traffic from
> logsources which have a certificate from Intermediate CA-2.
> A test with openssl s_client -connect localhost:6514 shows that the system
> only accepts certificates which originate from Intermediate CA-1
>
> We are using rsyslogd  8.2102.0-10.el8 (aka 2021.02) at the moment.
>
> Is it somehow possible to configure the acceptance of certificates from
> both Intermediate CAs or is this simply not possible with one instance of
> rsyslog?
>
> Kind regards and thanks in advance,
> Roman Möller (He/His)
>
>
>
>
>
>
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