问题
I want to use OpenSSL or any native Linux command to grab the certificate of a SQL Server. I tried the same way as I do with an HTTP server but it doesn't work.
openssl s_client -showcerts -connect MY.MSSQL.SERVER:1433
CONNECTED(00000003)
write:errno=104
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no peer certificate available
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No client certificate CA names sent
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SSL handshake has read 0 bytes and written 249 bytes
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New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
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来源：https://stackoverflow.com/questions/34981859/openssl-fetching-sql-server-public-certificate