Connection to an oracle db from another computer
-
16-10-2019 - |
Question
I have installed Oracle 11g to an ubuntu, I can connect to DB using sqlplus from the localhost, But I cannot connect from another computer, I have configured my tnsnames.ora as followed;
ELIF =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.15.58)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ELIF)
)
)
when I make a tnsping I got the following error;
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.15.58)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SID = ELIF))) TNS-12541: TNS:no listener
Edit: "lsnrctl statu" and "netstat -an | grep 1521" results.
oracle@cms:~$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 25-JAN-2012 13:26:16
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 25-JAN-2012 02:33:02
Uptime 0 days 10 hr. 53 min. 13 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /home/oracle/app/oracle/diag/tnslsnr/cms/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Services Summary...
Service "ELIF" has 1 instance(s).
Instance "ELIF", status READY, has 1 handler(s) for this service...
Service "ELIFXDB" has 1 instance(s).
Instance "ELIF", status READY, has 1 handler(s) for this service...
The command completed successfully
oracle@cms:~$ netstat -an | grep 1521
tcp 0 0 127.0.0.1:1521 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:32656 127.0.0.1:1521 ESTABLISHED
tcp 0 0 127.0.0.1:1521 127.0.0.1:32656 ESTABLISHED
unix 2 [ ACC ] STREAM LISTENING 115265 /var/tmp/.oracle/sEXTPROC1521
Solution
Type:
lsnrctl start
On your Unix box. That starts the listener.
If you still can't connect after that it's either a firewall issue or the listener isn't configured.
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