Oracle link 10.50.1.82 not even a machine from another 10.50.0.173 But even from the 10.50.0.173 to 10.50.1.82 10.50.0.173 is estimated that the Taiwan question is the issue of eavesdropping, but the monitor is opened Tnsnames as follows : Wendy = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.50.0.173) (PORT = 1521))     ) (CONNECT_DATA = (SID = ora92) # (SERVICE_NAME=oracle_wendy) (SERVER = DEDICATED)     )   ) BAK = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.50.1.82) (PORT = 1521))     ) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = bak)     )   ) I wonder why it was not wendy database? Wendy tnsping Ping通 can? Of ping nowhere, even have written procedures Rom, not the outside world seems like Landlord, the error can clearly 啊~! Oracle link is not it? If it is reported and what kind of wrong! ~ This method can try First, check to see whether ping通 configure Oracle, ping通 if so, whether it has been shut the network gateway. Wondered course not, but I can try. Bold innovation! Tnsping wendy TNS-12535 TNS:operation timed out : Always overtime procedure even when it died there, a long time reaction Links can be of ping ip ah, do not understand. Oracle configure ask what order? 1.82 0.173 can even die, Gateway seems to have nothing to blockade Etc\hosts add a mainframe try! If that Two machines are Windows 呀~~ HOST machines were replaced by the host name and see what happens. It has been tested, it was not only the engines, the plane tnsping be no problem, even on the other machine does not seem to like 1,521 of the Port Preliminary estimates Oracle could not correctly identify documents LISTENER.ORA and tnsnames.ora In general there were two Unix operating system, and $ORACLE_HOME/network/admin /etc, set up two checks correctly. 10.50.1.82 not even a machine from another 10.50.0.173 But even from the 10.50.0.173 to 10.50.1.82 10.50.0.173 is estimated that the Taiwan question is the issue of eavesdropping, but the monitor is opened Tnsnames as follows : Wendy = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.50.0.173) (PORT = 1521))     ) (CONNECT_DATA = (SID = ora92) # (SERVICE_NAME=oracle_wendy) (SERVER = DEDICATED)     )   ) BAK = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.50.1.82) (PORT = 1521))     ) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = bak)     )   ) Not? Windows machine are two, but Tnsping each other, have emerged Used TNSNAMES adapter to resolve the alias The issue should be 0.173 birth of 1.82 in other machines would not be a problem, even .173 is not, say fail to recognize LISTENER.ORA Start listening to those listed in the message are activated LISTENER.ORA Lane. You do not understand what it means to say, Halo, I CSDN Have seen someone asked, and I was like, did not know how the case. Listener.ora check, make sure host=10.50.0.173, not host=127.0.0.1 or host=localhost John Tnsnames Wendy read as follows : you see the lowercase wendy Wendy = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.50.0.173) (PORT = 1521))     ) (CONNECT_DATA = (SID = ora92) # (SERVICE_NAME=oracle_wendy) (SERVER = DEDICATED)     )   ) --> IP 127.0.0.1 is not ah --> It has been tested, is not the capitalization issue 10.50.0.173 and 10.50.1.82 belong to two different networks, 10.50.0.173 10.50.1.173 changed, or replaced 10.50.0.82 10.50.1.82. Try. John --> Powerless, it is automatic allocation of IP, a set down on the distribution, to say if the problem is, why can 0.173 1.82 visit? [ Closed window ]