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<font face="Lato">Kostya,<br>
<br>
they have already a bug open on this as I saw now </font><br>
<font face="Lato"><a
href="https://jira.mariadb.org/browse/MDEV-18131">https://jira.mariadb.org/browse/MDEV-18131</a><br>
and I also filed a bug on the TLS cipher string issue from
yesterday.<br>
Depending on when this will be resolved I will have to consider
alternatives anyway, yes<br>
<br>
Thanks for the hints!<br>
<br>
-- T</font><br>
<br>
<div class="moz-cite-prefix">On 18/04/2019 12:15, Kostya Vasilyev
via dovecot wrote:<br>
</div>
<blockquote type="cite"
cite="mid:fad4ed08-6b86-4ee9-a94e-4bd566916e03@www.fastmail.com">
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<div>Have you considered any alternatives?<br>
</div>
<div><br>
</div>
<div>I'm thinking of IPSec to create a secured network
encapsulation channel(s) "above" the TCP connection(s).<br>
</div>
<div><br>
</div>
<div>This would provide encryption with control over cipher(s),
and cert validation on both sides (if you used cert auth, not
PSK).<br>
</div>
<div><br>
</div>
<div>-- K<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>On Thu, Apr 18, 2019, at 12:15 PM, TG Servers via dovecot
wrote:<br>
</div>
<blockquote id="qt" type="cite">
<div><span style="font-family:Lato" class="font">Ok then it
seems again a MariaDB issue, they don't check against IP in
the SAN it seems, this has nothing to do with ssl_ca setting
it seems<br>
<br>
host=<ip> port=<port> dbname=<db>
user=<user> ssl_verify_server_cert=yes
ssl_cipher=TLSv1.2 ssl_ca=/etc/ssl/certs/ca-bundle.crt
password=<pwd><br>
brings up this<br>
<i>Connect failed to database (vmail): SSL connection error:
SSL certificate validation failure </i><br>
<br>
</span><span style="font-family:Lato" class="font"><span
style="font-family:Lato" class="font">host=<host>
port=<port> dbname=<db> user=<user>
ssl_verify_server_cert=no ssl_cipher=TLSv1.2
ssl_ca=/etc/ssl/certs/ca-bundle.crt password=<pwd>
is working<br>
<br>
contents from my.cnf :<br>
ssl_cert="/etc/ssl/certs/mysql.pem"<br>
ssl_key="/etc/ssl/certs/mysql.key"<br>
ssl_ca="/etc/ssl/certs/ca-bundle.crt"<br>
ssl_cipher="TLSv1.2"<br>
<br>
and from command line <br>
mysql --ssl --ssl-verify-server-cert --host <ip>
brings up<br>
ERROR 2026 (HY000): SSL connection error: Validation of
SSL server certificate failed<br>
while<br>
mysql --ssl --ss-verify-server-cert --host
<hostname> works<br>
<br>
TLS isn't really the domain of MariaDB, they have really a
lot of crap going on there, a lot of, sadly...</span></span></div>
<div><span style="font-family:Lato" class="font"><span
style="font-family:Lato" class="font"><br>
<br>
Thanks</span></span></div>
<div><br>
</div>
<div><br>
</div>
<div class="qt-moz-cite-prefix">On 18/04/2019 10:52, Aki Tuomi
via dovecot wrote:<br>
</div>
<blockquote type="cite"
cite="mid:691823770.1474.1555577520240@appsuite-dev-gw2.open-xchange.com">
<pre class="qt-moz-quote-pre" wrap="">
</pre>
<blockquote type="cite">
<pre class="qt-moz-quote-pre" wrap="">On 18 April 2019 11:34 TG Servers via dovecot <a class="qt-moz-txt-link-rfc2396E" href="mailto:dovecot@dovecot.org" moz-do-not-send="true"><dovecot@dovecot.org></a> wrote:
Hi,
when using ssl_verify_server_cert in mysql connection string, is the cert verified also against SAN (DNS and IP)?
Because this doesn't seem to work. I get a certification verification error in handshake when connecting via IP.
But the cert is good as the connection via IP (and IP in the SAN of the cert) works from other applications verifying.
Thanks.
</pre>
</blockquote>
<pre class="qt-moz-quote-pre" wrap="">Dovecot does consider SAN names too, but for MySQL driver, we use MYSQL_OPT_SSL_VERIFY_SERVER_CERT setting. Then you need to use ssl_ca or ssl_ca_path in the mysql driver config file to point to acceptable CAs.
Aki
</pre>
</blockquote>
</blockquote>
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