[syslog-ng] CentOS7 syslog-ng 3.5.6: TLS: SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca

[Scheidler, Balázs]

The SSL alert is sent by the client, thus the client didn't accept the
certificate of the server. Can you paste that config as well?
On Jun 24, 2015 11:44 AM, "Schulte, Klaus (Nokia - DE/Ulm)" <
klaus.schulte at nokia.com> wrote:

> Dear all,
>
> I've this source settings for TLS:
>
> source s_tcp_tls {
>    network(  transport("tls")
>              ip(10.46.130.65) port(6514)
>              tls(
>                    peer-verify("optional-untrusted")
>                    key-file("/etc/syslog-ng/key.d/syslog-ng.key")
>                    cert-file("/etc/syslog-ng/cert.d/syslog-ng.cert")
>              )
>    );
> };
>
> But when a client connects via TCP/TLS to the syslog-ng service..
>
> In syslog-ng these messages are showing up:
>
> syslog-ng starting up; version='3.5.6'
> Syslog connection accepted; fd='12', client='AF_INET(10.46.160.78:48075)',
> local='AF_INET(10.46.130.65:6514)'
> SSL error while reading stream; tls_error='SSL
> routines:SSL3_READ_BYTES:tlsv1 alert unknown ca'
> I/O error occurred while reading; fd='12', error='Connection reset by peer
> (104)'
> Syslog connection closed; fd='12', client='AF_INET(10.46.160.78:48075)',
> local='AF_INET(10.46.130.65:6514)'
> Closing log transport fd; fd='12'
>
> I don't know why syslog-ng is proving the CA?
> As far as I know the configuration is a non-mutual authentication - so the
> CA shouldn't play a role in this - is this correct?
>
> The client sends messages in RFC5424 format.
>
> Any help is appriciated - I've no clue what's going wrong.
>
> Best regards
>   Klaus
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