Under Database Connection, select the Enable TLS 1.2 support check box.Ĭlick Test Connection to verify the connection. Log in to any Alloy Discovery desktop app installed on your computer (for example, the Desktop App or Settings) to reveal the Log in to Alloy Discovery window and click Manage Connections to start the Connection Manager.
Enabling the driver will enable TLS 1.2 support. To resolve this error, enable the MSOLEDBSQL driver on all computers that access the SQL Server hosting the Alloy Discovery database.
When the MSOLEDBSQL driver is required, this error message occurs: SSL Labs by Qualys is one of the most popular SSL testing tools to check all the latest vulnerabilities & misconfiguration. Since we don't know whether you need TLS 1.2 support, the new driver is disabled by default. 4, our installer checks for MSOLEDBSQL during the installation or upgrade process, and installs it if necessary. * SSL connection using TLSv1.When your SQL Server is configured to use TLS 1.2 for secure communication, as recommended by Microsoft, you should enable Alloy Discovery to use the MSOLEDBSQL driver ("Microsoft OLE DB Driver for SQL Server") to access the database. * TLSv1.2 (IN), TLS handshake, Finished (20): * TLSv1.2 (IN), TLS change cipher, Change cipher spec (1): * TLSv1.2 (OUT), TLS handshake, Finished (20): * TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1): * TLSv1.2 (OUT), TLS handshake, Client key exchange (16): * TLSv1.2 (IN), TLS handshake, Server finished (14): * TLSv1.2 (IN), TLS handshake, Server key exchange (12): * TLSv1.2 (IN), TLS handshake, Certificate (11): * TLSv1.2 (IN), TLS handshake, Server hello (2): * TLSv1.2 (OUT), TLS handshake, Client hello (1): The output below shows a successful TLS 1.2 TLS handshake and some output from the webserver. blog(35) LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to Now, let’s tell curl to use TLS protocol version of 1.2 with the parameters -tlsv1.2 -tls-max 1.2 and see if we can successfully access the webserver. * LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to * Closing connection 0
* TLSv1.1 (OUT), TLS handshake, Client hello (1): * successfully set certificate verify locations: So in the output, when forcing curl to use TLS version 1.1, the SSL_connect fails since the webserver only permits 1.2+ curl -verbose -tlsv1.1 -tls-max 1.1 The webserver here has a policy that allows only TLS version 1.2+. Using the -verbose parameter gives you the ability to see the TLS handshake and get the output sent to standard out. This code here uses curl with the parameters -tlsv1.1 -tls-max 1.1, which will force the max TLS protocol version to 1.1.
Ever need to set your web server a specific protocol version of TLS for web servers and need a quick way to test that out to confirm? Let’s check out how to use curl to go just that.
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