ORA-12547 and ORA-28547, Oracle XE 11g, Ubuntu 14.04

Question

Hello,
I installed oracle xe 11g on ubuntu 14.04. When you try to connect locally, I get the error:
oracle@server-name:~$ sqlplus oracle/pass
SQL*Plus: Release 11.2.0.2.0 Production on Thu Sep 4 00:48:54 2014
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
ERROR:
ORA-12547: TNS:lost contact
Enter user-name:
If I try to connect remotely from Windows, I get
SQL> connect oracle@hostname
Enter password:
ERROR:
ORA-28547: connection to server failed, probable Oracle Net admin error
listener.ora
# 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 = hostname)(PORT = 1521))
DEFAULT_SERVICE_LISTENER = (PLSExtProc)
tnsnames.ora
# tnsnames.ora Network Configuration File:
XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = hostname)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = PLSExtProc)
EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NONE)
lsnrctl status
oracle@server-name:~$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 04-SEP-2014 00:58:44
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date                04-SEP-2014 00:43:31
Uptime                    0 days 0 hr. 15 min. 13 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           PLSExtProc
Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/hostname/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hostname)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
tnsping hostname
oracle@server-name:~$ tnsping hostname
TNS Ping Utility for Linux: Version 11.2.0.2.0 - Production on 04-SEP-2014 01:01:15
Copyright (c) 1997, 2011, Oracle.  All rights reserved.
Used parameter files:
/u01/app/oracle/product/11.2.0/xe/network/admin/sqlnet.ora
Used HOSTNAME adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.0.100)(PORT=1521)))
OK (0 msec)
End of  /u01/app/oracle/diag/tnslsnr/hostname/listener/alert/log.xml
<msg time='2014-09-04T00:56:18.357+04:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='hostname'
host_addr='192.168.0.100'>
<txt>04-SEP-2014 00:56:18 * (CONNECT_DATA=(SERVICE_NAME=PLSExtProc)(CID=(PROGRAM=D:\wm\oraclexe\app\oracle\product\11.2.0\server\bin\sqlplus.exe)(HOST=USER-PC)(USER=User))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.0.99)(PORT=57920)) * establish * PLSExtProc * 0
</txt>
</msg>
<msg time='2014-09-04T00:58:44.897+04:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id=''hostname'
host_addr='192.168.0.100'>
<txt>WARNING: Subscription for node down event still pending
</txt>
</msg>
<msg time='2014-09-04T00:58:44.897+04:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id=''hostname'
host_addr='192.168.0.100'>
<txt>04-SEP-2014 00:58:44 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST='hostname)(USER=oracle))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=186647040)) * status * 0
</txt>
</msg>
<msg time='2014-09-04T01:01:15.447+04:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id=''hostname'
host_addr='192.168.0.100'>
<txt>04-SEP-2014 01:01:15 * ping * 0
</txt>
</msg>
Thanks for any help.

Answer 1

Srini Chavali-Oracle написал(а):
Moved to the XE forum
I installed oracle xe 11g on ubuntu 14.04.
Not a supported distro - Oracle® Database Express Edition - so things may or may not work as expected.
The errors sound suspiciously like a firewall is preventing connections.
I checked it. I think that everything is fine and the problem is elsewhere:
admin@server-name:~$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
admin@server-name:~$ netstat -tnlp
(No info could be read for "-p": geteuid()=1000 but you should be root.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      -
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      -
tcp        0      0 0.0.0.0:10000           0.0.0.0:*               LISTEN      -
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -
tcp6       0      0 ::1:25                  :::*                    LISTEN      -
tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      -
tcp6       0      0 :::8080                 :::*                    LISTEN      -
tcp6       0      0 :::80                   :::*                    LISTEN      -
tcp6       0      0 :::1521                 :::*                    LISTEN      -
tcp6       0      0 :::21                   :::*                    LISTEN      -
tcp6       0      0 :::22                   :::*                    LISTEN      -