DB2 SSL配置遇到的一個問題

配置完DB2 Server端，然後配置db2 client端，連線資料庫，命令列丟擲一個錯誤

SQL30081N  A communication error has been detected. Communication protocol
being used: "SSL".  Communication API being used: "SOCKETS".  Location where
the error was detected: "".  Communication function detecting the error:
"sqlccSSLSocketSetup".  Protocol specific error code(s): "420", "*", "*".
SQLSTATE=08001


在db2diag.log丟擲這樣的錯誤
MESSAGE : DIA3604E The SSL function "gsk_secure_soc_init" failed with the
          return code "402" in "sqlccSSLSocketSetup".
          
一番調查和求證，發現問題的原因
db2 server 端版本是 V11.1.4.4
db2 client 端版本是 10.5.0.4

我開始在db2 server端配置了 dbm cfg
(SSL_VERSIONS) = TLSV12

解決方法:

db2 update dbm cfg using SSL_VERSIONS NULL
重啟DB2