One IP for Multiple Domains

Question

Hi,
I have installed a DB and a Glassfish on one server. The server should handle 3 domains and only one IP address available which points to this server, each domain has its own Oracle APEX application.
www.d1.com >>> One IP Address >>> APEX Application1
www.d2.com >>> One IP Address >>> APEX Application2
www.d3.com >>> One IP Address >>> APEX Application3
How can I implement this?
Thanks,

Answer 1

Hi,
I actually had the same problem: I have one oracle instance (11gXE2) with Glassfish and the APEX Listener. I'm hosting different applications (in different workspaces) on this instance. The whole configuration is accessible by one fixed IP adres from the internet. I further have several domains (and sub-domains) mapped to this one IP. To ensure that a request for www.d1.com is routed to Application1 and www.d2.com to Application2 I wrote a smal plsql-"proxy (or multiplexer) using the OWA_UTIL.get_cgi_env ('HOST') variable to determine the requested domain and then redirect to an application that belongs to it.
The configuration I have stored in a table, for matching I use LIKE patterns:
Table for my "proxy":
{code}
CREATE TABLE "PROXY_RULES"
(     "ID" NUMBER,
     "SEQ" NUMBER,
     "HOST_PATTERN" VARCHAR2(1000),
     "REDIR_URL" VARCHAR2(1000),
     CONSTRAINT "PROXY_RULES_PK" PRIMARY KEY ("ID") ENABLE
{code}
filling for your example:
{code}
ID SEQ HOST_PATTERN REDIR_URL
1 5 %.d1.com http://www.d1.com/apex/f?p=App1:Home:0
3 10 %.d2.com http://www.d1.com/apex/f?p=App2
2 15 %.d3.com http://www.d1.com/apex/f?p=App3:1:0
0 99 % http://www.d1.com/apex/f?p=App1:Home:0
{code}
and the actual procedure to redirect calls:
{code}
PROCEDURE redirect IS
t_host varchar2 (250);
t_redir varchar2 (250);
BEGIN
t_host := OWA_UTIL.get_cgi_env ('host');
SELECT redir_url
INTO t_redir
FROM (SELECT redir_url
FROM proxy_rules
WHERE UPPER (t_host) LIKE UPPER (host_pattern)
ORDER BY seq, id)
WHERE ROWNUM < 2;
OWA_UTIL.redirect_url (curl => t_redir, bclose_header => TRUE);
EXCEPTION
WHEN OTHERS
THEN
OWA_UTIL.redirect_url (curl => 'http://www.d1.com', bclose_header => TRUE);
END redirect;
{code}
Grant execute on this procedure to the APEX_PUBLIC_USER, create a public synonym on it and make sure all requests without a path get redirected to it, for example with a simple index.html containing a redirect to "/apex/redirect":
<meta http-equiv="refresh" content="0; url=/apex/redirect">
This works fine, but doesn't check that App2 is accessed through www.d1.com. I still have to add this functionality.
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I hope this helps.
Regards,
Christian Rokitta
Edited by: crokitta on Feb 28, 2012 1:38 PM
Edited by: crokitta on Feb 28, 2012 1:39 PM