在 sqlnet.log 中错误如下：
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 29-NOV-2006 19:13:40
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=219.239.13.3)(PORT=19948))
# oerr tns 12170
12170, 00000, "TNS:Connect timeout occurred"
// *Cause: The server sh
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 29-NOV-2006 19:13:40
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=219.239.13.3)(PORT=19948))
# oerr tns 12170
12170, 00000, "TNS:Connect timeout occurred"
// *Cause: The server sh