I am trying to set up an Oracle database server (at the moment just for testing purposes) in a virtual machine.
The setup I'm using:
- Network adapter in NAT mode (redirecting ports 22->22, 80->80, 1521->1521, 8080->8080)
- I'd rather avoid bridged networking, if possible
- It would be good if the database could be accessed by the outside world, and not just the host OS
- CentOS 6.4 64-bit
- Oracle XE, version 220.127.116.11.0 "Production", installed and configured using the default ports (1521 and 8080)
- Firewall disabled in both the guest OS and the host OS
- The host OS is behind a proxy
I cannot access the database (over port 1521, using sqlplus or SQL developer) from the host. I can access it from the VM itself though (using sqlplus).
I can also SSH from the host into the VM and I can access the web interface from the host when I navigate to:
Therefore, the NAT setup of VirtualBox seems to work to some extent.
It seems the listener is up when I execute lsnctrl status. The listener.ora file looks like this:
# 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 = localhost.localdomain)(PORT = 1521)) ) ) DEFAULT_SERVICE_LISTENER = (XE)
When I try to connect from the host, I get the following error (the same command works when executed within CentOS):
PS C:\Users\winuser> sqlplus firstname.lastname@example.org SQL*Plus: Release 18.104.22.168.0 Production on Fr Jul 12 16:56:25 2013 Copyright (c) 1982, 2011, Oracle. All rights reserved. ERROR: ORA-12154: TNS:could not resolve the connect identifier specified
Port 1521 also seems to be active in the VM, and port forwarding is set up appropriately in VirtualBox:
[root@localhost admin]# nmap 127.0.0.1 Starting Nmap 5.51 ( http://nmap.org ) at 2013-07-12 17:02 CEST Nmap scan report for localhost.localdomain (127.0.0.1) Host is up (0.0000050s latency). Not shown: 994 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 111/tcp open rpcbind 631/tcp open ipp 1521/tcp open oracle 8080/tcp open http-proxy Nmap done: 1 IP address (1 host up) scanned in 0.06 seconds
Thank you for any tips or suggestions.