服務狀態如下：

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

Service "orcl" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orclXDB" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

Service "orcl_XPT" has 1 instance(s).

Instance "orcl", status READY, has 1 handler(s) for this service...

The command completed successfully

使用客戶端連接，服務器端已接收到連接請求syn報文

No.? ???Time? ?? ???Source? ?? ?? ?? ?? ? Destination? ?? ?? ???Protocol Info

1 0.000000? ? 117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59763 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 WS=8 SACK_PERM=1

5 3.003553? ? 117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59763 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 WS=8 SACK_PERM=1

9 9.009560? ? 117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59763 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 SACK_PERM=1

17 36.635806? ?117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59765 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 WS=8 SACK_PERM=1

18 39.636257? ?117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59765 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 WS=8 SACK_PERM=1

21 42.652231? ?117.115.5.226? ?? ?? ?117.115.5.227? ?? ?? ?TCP? ?? ?59765 > ncube-lm [SYN] Seq=0 Win=8192 Len=0 MSS=1560 SACK_PERM=1

其中ncube-lm 是端口1521

為什么服務器不作響應？

總結

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