Hi,
I am running Oracle Database 11g Express Edition on Debian Linux. I installed both Oracle Database 11g Express Edition and SQL developer. I started the database using oracle-xe start which started fine. When attempting to create a new connection, however, I got this error:
Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection
Therefore I ran lsnrctl status on the linux terminal as both root user and oracle user which gave :
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 20-MAY-2016 21:48:44
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
Attempting to start using lsnrctl start it gave me:
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.2.0 - Production
NL-00280: error creating log stream /u01/app/oracle/product/11.2.0/xe/network/log/listener.log
NL-00278: cannot open log file
SNL-00016: snlfohd: error opening file
Linux Error: 13: Permission denied
Listener failed to start. See the error message(s) above...
Contents of my listener.ora file:
# listener.ora Network Configuration File:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST =127.0.0.1)(PORT = 1521))
)
)
DEFAULT_SERVICE_LISTENER = (XE)
Contents of my tnsnames.ora file:
# tnsnames.ora Network Configuration File:
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
Pinging the host which is 127.0.0.1 (localhost) gives successful results (0% loss) and 1521 is the port I specified. The SID is xe.
$ echo $ORACLE_HOME gives:
/u01/app/oracle/product/11.2.0/xe
and
$ echo $ORACLE_SID gives:
XE
So I'm pretty sure that the problem has nothing to so with the environment variables.
Also the /etc/hosts file has:
127.0.0.1 localhost
127.0.1.1 phantom.intrudernet phantom
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
So localhost is there. And therefore I am stuck. I have seen similar questions but they didn't solve any of my problems. Any help would be great.