OCP(11g)------> SEC_PROTOCOL_ERROR_FURTHER_ACTION

SEC_PROTOCOL_ERROR_FURTHER_ACTION specifies the further execution of a server process when receiving bad packets from a possibly malicious client.

Values:

• CONTINUE

  The server process continues execution. The database server may be subject to a Denial of Service (DoS) if bad packets continue to be sent by a malicious client.
  伺服器程式繼續執行。如果壞包繼續是一個惡意的客戶端傳送  資料庫伺服器可能會受到拒絕服務（DoS）(DELAY,integer)
• The client experiences a delay of integer seconds before the server process accepts the next request from the same client connection. Malicious clients are prevented from excessive consumption of server resources while legitimate clients experience a degradation in performance but can continue to function.
  客戶體驗延遲整數秒之後伺服器程式接收來自同一客戶端連線下一個請求。防止惡意使用者的伺服器資源的過度消耗而合法的客戶體驗效能退化而能繼續功能。

• (DROP,integer)

  The server forcefully terminates the client connection after integer bad packets. The server protects itself at the expense of the client (for example, a client transaction may be lost). The client may reconnect and attempt the same operation.
  強行終止伺服器的客戶端連線後，整壞包。 客戶端可以連線並執行相同的操作。
  
  
  相關考題：

  To control the execution of a server process when it is receiving bad packets from a potentially malicious 

  client, you set the SEC_PROTOCOL_ERROR_FURTHER_ACTION initialization parameter as follows:

  SQL> ALTER SYSTEM SET SEC_PROTOCOL_ERROR_FURTHER_ACTION = Drop,10;

  What is the significance of this setting?

  A. It terminates the client connection after 10 bad packets and the client cannot reconnect to the same 

  instance.

  B. It terminates the client connection after 10 bad packets but the client can still reconnect, and attempt the 

  same operation again.

  C. It terminates the client connection 10 seconds after receiving a bad packet and the client cannot 

  reconnect to the same instance.

  D. It terminates the client connection after receiving a bad packet and the client can reconnect to the same  

  instance after 10 minutes.

  Answer: B