When client try to make connection to the listener (default using port 1521), the listener spawn new user-process. This user process use random port to handle the client's request. Mainly, oracle use two main program, which are " oracle.exe" for oracle-instance, and "tnslsnr.exe" for listener. We can check it through "Task Manager"
Windows firewall support port and program exception. We use both to make exception in Windows-Firewall.
From Control Panel --> Windows Firewall :
1. "Add Port" => 1521
2. "Add Program => browse to the ORACLE_HOME/bin for " oracle.exe" and "tnslsnr.exe"
Ok, now try to reconnect your client to the Oracle Server, and feel that your firewall configuration works... good luck!
Windows firewall support port and program exception. We use both to make exception in Windows-Firewall.
From Control Panel --> Windows Firewall :
1. "Add Port" => 1521
2. "Add Program => browse to the ORACLE_HOME/bin for " oracle.exe" and "tnslsnr.exe"
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