I have a problem with Oracle Express Edition. I can open and run commands in the Data Base by using sqlplus, but then I try to connect to Data Base by using sql developer it doesn't work. It's strange because I have many other remote Oracle databases and I can connect to them by using sql developer or other tools like IDEA. May be something wrong with listener?
When I try to connect I get timed out on connection to port 1521.
Connection to @myhost.company.com failed.
lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 22-╤┼═-2017 12:04:43
Copyright (c) 1991, 2010, Oracle. All rights reserved.
TNS-01106: Listener using listener name LISTENER has already been started
C:\Users\luchser>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 22-╤┼═-2017 12:11:20
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Production
Start Date 21-╤┼═-2017 14:21:26
Uptime 0 days 21 hr. 49 min. 53 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\listener.ora
Listener Log File C:\oraclexe\app\oracle\diag\tnslsnr\localhost\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=myhost.company.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=myhost.company.com)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully
listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = myhost.company.com)(PORT = 1521)(IP=V4_ONLY))
)
)
DEFAULT_SERVICE_LISTENER = (XE)
tnsnames.ora
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = myhost.company.com)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)
tnsping XE 10
C:\Users\luchser>tnsping XE 10
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Production on 26-╤┼═-2017 14:49:12
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = myhost.company.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
OK (0 msec)
OK (10 msec)
OK (0 msec)
OK (0 msec)
OK (20 msec)
OK (0 msec)
OK (0 msec)
OK (10 msec)
OK (0 msec)
OK (20 msec)
sqlplus user/password@XE
C:\Users\luchser>sqlplus my_user/my_password@XE
SQL*Plus: Release 11.2.0.2.0 Production on ┬Є ╤хэ 26 14:50:11 2017
Copyright (c) 1982, 2010, Oracle. All rights reserved.
The last just hags and nothing happens.
In this configuration, listener.ora and tnsnames.ora. You can make a connection only on the local database, you can not make a remote connection to the database, because The listener listens only to IP localhost. You must add an external IP to the listener configuration. listener.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)(IP=V4_ONLY))
(ADDRESS = (PROTOCOL = TCP)(HOST = <IP DB server>)(PORT = 1521)(IP=V4_ONLY))
)
)
Add an exception for port 1521 and port range (32768-65536) for the firewall on the database server, this is necessary for the SQL * NET protocol. On the client machine, you need to fix tnsnames.ora, It is necessary to replace localhost with the IP address of the database server.
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = <IP DB server>)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)