Why do we use reverse proxy for Oracle RAC Cluster setup

Hello All,
I got this question lately.. "why do we use reverse proxy for Oracle RAC Cluster setup". I know we use the reverse proxy at Middleware level for multiple security reasons.
Thanks..

"why do we use reverse proxy for Oracle RAC Cluster setup".
I wouldn't. I wouldn't use a proxy of any sort for the Cluster Interconnect for sure.
Cheers,
Brian

Similar Messages

Configuring a Apache Reverse Proxy for OracleAS Portal and OracleAS Single

I'm trying to implement my Oracle Portal 10g Release 2 with a reverse proxy (Apache 2.2) as described in this link: http://download.oracle.com/docs/cd/B14099_19/core.1012/b13998/variants.htm#BEIFECEH without success. I have Oracle Portal, Oracle SSO,OID in the same domain and Apache Reverse Proxy in another domain. Has anyone had success using OracleAS Portal with a reverse proxy?

First of all i'm trying to configure a reverse proxy only for Ora SSO (infra tier). Here is what i already do:
APACHE REVERSE PROXY (Apache 2.2)
http:/proxy.mycompany.com:80
ProxyRequests off
ProxyPassInterpolateEnv On
ProxyPass / http:/portal.tech.everett.it:7777/
ProxyPassReverse / http:/portal.tech.everett.it:7777/
ProxyPreserveHost On
ORACLE SSO
http:/portal.mycompany.com:7777
Here are the steps i already do:
1- CONFIG OID
create an ldif file called setdasurl.ldif and insert as follow:
dn:cn=OperationURLs,cn=DAS,cn=Products,cn=OracleContext
changetype: modify
replace: orcldasurlbase
orcldasurlbase: http:/proxy.mycompany.com/
then do ldapmodify as follow:
ldapmodify -x -h portal.mycompany.com -p 3060 -D "cn=orcladmin" -w password1 -v -f setdasurl.ldif
2- CONFIG ORA SSO (as gentjan user)
export ORACLE_HOME=/home/gentjan/product/10.1.2/OracleAS/infra/
2.1-config Apache config of ORA SSO
vi $ORACLE_HOME/Apache/Apache/conf/httpd.conf
change from:
ServerName portal.mycompany.com
Port 7777
KeepAlive On
to:
ServerName proxy.mycompany.com
Port 80
KeepAlive Off
and add at the end of httpd.conf
RewriteEngine On
RewriteOptions inherit
2.2- update DCM Repository (as root)
*$ORACLE_HOME/dcm/bin/dcmctl updateconfig -ct HTTP_Server -v -d*
2.3- modify SSO Server Home URL to reverse proxy hostname and port (as root)
*$ORACLE_HOME/sso/bin/ssocfg.sh http proxy.mycompany.com 80*
2.4- Updating the targets.xml File
Open the ORACLE_HOME/sysman/emd/targets.xml file and locate the target type oracle_sso_server.
vi $ORACLE_HOME/sysman/emd/targets.xml
Update the HTTPMachine and HTTPPort attributes with the proxy server host and port attributes that were passed to ssocfg. For example:
Property NAME="HTTPMachine" VALUE="proxy.mycompany.com"
Property NAME="HTTPPort" VALUE="80"
Property NAME="HTTPProtocol" VALUE="http"
Save and close the file.
Reload the Application Server Control Console by issuing this command (as gentjan):
*$ORACLE_HOME/bin/emctl reload*
2.5- Re-register mod_osso on SSO Middle-tier with reverse proxy hostname and port
some needed permissions
chmod -R 775 /home/gentjan/product/10.1.2/OracleAS/infra/dcm/
Re-register mod_osso (as gentjan)
*$ORACLE_HOME/sso/bin/ssoreg.sh -oracle_home_path /home/gentjan/product/10.1.2/OracleAS/infra -site_name infra.proxy.mycompany.com -config_mod_osso TRUE -mod_osso_url http:/proxy.mycompany.com:80 -update_mode MODIFY*
2.6- update DCM Repository (as root)
*$ORACLE_HOME/dcm/bin/dcmctl updateconfig -ct HTTP_Server -v -d*
2.7- Restart OC4J_Security and Oracle HTTP Server at Infrastructure tier
*$ORACLE_HOME/opmn/bin/opmnctl restartproc process-type=HTTP_Server*
*$ORACLE_HOME/opmn/bin/opmnctl restartproc process-type=OC4J_SECURITY*
After this modifications my reverse proxy is ok.
I can access to http:/proxy.mycompany.com:80 and this redirect me to Oracle Application Server Welcome page.
If i try http:/proxy.mycompany.com/pls/orasso/orasso.home, i can view the SSO Server Home page.
The problem that i find is when i click to Login page for Oracle SSO.
I have the following error:
Forbidden You don't have permission to access /pls/orasso/ORASSO.wwsec_app_priv.login on this server.
So, in other words i can't do the login/logout under reverse proxy. Anyone can help?
Gentjan

Using reverse proxy for load balancing

Hello,
i have succesfully configured a reverse proxy ( Sun Web Server 7 ) to balance load between two application servers ( Sun Application Server 9.1), however i do not want randon assignment of requests using a round robin algorithm ( default option in Sun Web Server 7) but rather i want to apply a 80/20 rule so that one application server will receive 80% of the requests and the other will receive 20%.
Is there a way of performarming such a task.
your help is really appreciated.
thank you

thank you for the reply,
actually i tried it yesterday and it seems to work.
in my reverse proxy settings i added one server two times and the other once and 66% of the requests were forwarded to the first server.
now i have enabled the scenario that you are mentioning above and i so far requests seem to be proceced using the 80% 20% scenario.

Unable to set session in Oracle Portal useing reverse proxy

I have deployed a reverse proxy (using Oracle HTTP Server) in front of a Oracle Portal Install (version 10.1.2.0.2). The steps followed to set this up came from the following documents:
Steps mentioned in Section 9.2 Configuring a Reverse Proxy for OracleAS Portal and OracleAS Single Sign-On for a reverse proxy on a Oracle HTTP Server.
http://download-west.oracle.com/docs/cd/B14099_15/core.1012/b13998/variants.htm#ASTED005
Also performed steps mentioned in -> Section 5.3.7 - Step 7: Enable Session Binding on OracleAS Web Cache of the Oracle® Application Server Portal Configuration Guide 10g Release 2 (10.1.2) -- B14037-03.
My current (example names shown only)setup details are as follows:
Reverse Proxy for SSO server (running on internal.oracle.com:7777): proxy.oracle.com:7777
Reverse Proxy for Portal server (running on internal.oracle.com:7778): proxy.oracle.com:7778
With the above steps completed, I can successfully use the http://proxy.oracle.com:7777/pls/orasso for login into SSO without any issues.
Users get authenticated successfully.
I can also use http://proxy.oracle.com:7778/pls/portal for viewing pages on the portal fine . All self referencing links have also been successfully modified to point to proxy.oracle.com:7778.
However, an attempt to login in the portal is not successful. Clicking on the 'Login' link successfully redirects to the SSO login page (http://proxy.oracle.com:7777/<login-page>). However, after successful authentication, the success page fails to show up and the user gets shown the initial login portal home page again.
There are no error messages shown on the screen.But it seems that user session is failing to be initiated/set correctly, as shown by the log file (in $PORTAL_ORACLE_HOME/j2ee/OC4J_Portal/application-deployments/portal/OC4J_Portal_default_island_1/application.log ):
06/11/21 16:49:31 portal: [module=RepositoryServlet, ecid=83928411196,1] Repository Gateway: LWUser: PUBLIC, Cookie: oracle.uix=0^^GMT+10:00;
portal=9.0.3+en-au+us+AUSTRALIA+22BC75924EEAD8A2E040007F010019F7+8DAC5E3559C95F5E0090A6F56FFA58192CB0F437CA57A9102A6394F1EB7FAB5DEE3BFA12C65
91C0C009B6......
06/11/21 16:49:31 portal: [module=RepositoryServlet, ecid=83928411196,1] ERROR: Repository Gateway error: Database Error: ORA=20001 ORA-20001:
Unable to obtain session information from the cookie. Please close your browser and reconnect.
ORA-06512: at "PORTAL.WPG_SESSION", line 149
ORA-06512: at line 22
Any help with this will be appreciated.
Thanks.

Hi Chris,
The begin of the expection stack gives you the reason:
06/11/03 09:13:59 java.sql.SQLException: The method 'setSavepoint' cant be called when a global transaction is active
The reason is, that either the whole global transaction must be commited or rollbacked.
I don't know your actual configuration, but between the methods begin() and commit()/rollback() of the UserTransaction instance, OC4J/OracleAS uses a global transaction (= XA transaction) in your configuration. The state of a global transactions is completely under the control of the application server and several restrictions must be considered. One of them is, that you can't use the method setSavePoint/. E.g. you can't also call the method setAutoCommit(true) in this state, or change the transaction isolation level via setTransactionIsolation(newLevel).
This is NOT a limitation of the OC4J/OracleAS but is true for ALL application servers.
P.S. I can successfully set savepoints and rollback to savepoints in weblogic 9.0This means, that WebLogic 9.0 doesn't use a global transaction in this case.
Because I don't know your configurations (Oracle and WebLogic) I can't say, why the behave different in this situation.
Best,
Manfred

Issues using IIS 8.5 with ARR 3.0 as Reverse Proxy for Lync 2013

Dear reader, after searching for a day without finding a solution to my problem I end up here ;-)
Working Lync 2013 environment (gradually adding functionality) consisting of 2 FE servers, Persistent Chat Server, Web Apps server, Edge Server, Reverse Proxy Server (IIS 8.5/ARR 3.0), SQL Server.
Set up a fresh Windows 2012 R2 with IIS 8.5, installed ARR 3.0 and followed along this
TechNet article.
So far so good, external clients (incl. mobile phone apps) can all connect.
Now trying to add Web Apps to the reverse proxy, which is slightly different from the others by not forwarding 80/8080 and 443/4443, but just 80 and 443 to internal Web Apps server.
After creating the server farm/URL rewrite, browsing to the webapps.FQDN/hosting/discovery ends up with a 404 error (instead of XML, which is shown when try from the LAN).
After moving this rewrite rule to the top, it started working, but now my lyncdiscover.FQDN stops working.
Ofcourse moving the webapps rule down restores the lyncdiscover.
Any ideas? (everything setup as described in above mentioned TechNet article, so using wildcards. Tried fiddling around with webext.* and lyncdiscover.* and so, but no luck. (I'm completely new to ARR)
Thanks,
Barry

Can you confirm that for each URL Rewrite Rule, you have an {http_host} record that matches something like webext.* as you referenced above and as seen in step 15 here:
http://blogs.technet.com/b/nexthop/archive/2013/02/19/using-iis-arr-as-a-reverse-proxy-for-lync-server-2013.aspx
It might help if you posted a screenshot of your URL rewrite rules.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications

Reg : I am getting an error while Using MicroSoft ODBC For Oracle Driver

I am Using MicroSoft ODBC For Oracle Driver for JDBC. Why i am using this driver is i could not able to get the arabic content if i use the other driver .I Right now i cannot change the NLS Lang because its a production server also it has around 300 gb of data and i can not take risk now by changing the NLS lang.. coming to the below error .i could able to access my data up to 4 Hours after that i am getting this error.If i restart my tomcat i can use my application one more 4 hrs .Please get back to me if u have any solution.Its very very helpful to me......+*
[java.sql.SQLException] [ Microsoft ODBC for Oracle ]
at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6957)
at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7114)
at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(JdbcOdbc.java:3073)
at sun.jdbc.odbc.JdbcOdbcConnection.initialize(JdbcOdbcConnection.java:3
23)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:174)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.iton.eoffice.DatabaseBean.connecteOfficeMoEnq(DatabaseBean.java:4
60)
at org.apache.jsp.MhewProfilesearchMoEnq_jsp._jspService(MhewProfilesear
chMoEnq_jsp.java:434)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:384)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
20)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at com.iton.eoffice.tree.CharacterEncodingFilter.doFilter(CharacterEncod
ingFilter.java:63)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.j
ava:347)
at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBin
derValve.java:209)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:212)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
5)
at java.lang.Thread.run(Thread.java:619)
------------1234-----------
java.lang.NullPointerException
at com.iton.eoffice.DatabaseBean.getSQLRows(DatabaseBean.java:764)
at org.apache.jsp.MhewProfilesearchMoEnq_jsp._jspService(MhewProfilesear
chMoEnq_jsp.java:435)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:384)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
20)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at com.iton.eoffice.tree.CharacterEncodingFilter.doFilter(CharacterEncod
ingFilter.java:63)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by sreenivas navuluri:
Oracle(tm)Client and networking components not found. These components are supplied by Oracle Corporation and part of Oracle Version 7.2 or greater Client software installation. You will be unable to use this driver until these components have been installed . This error occurs while selecting the Microsoft Odbc for Oracle driver from the ODBC in control panel. Pls suggest<HR></BLOCKQUOTE>
null

Apache as Reverse Proxy for UWC and Webmail

Hi,
for several reasons i want to use apache 2 as reverse proxy and ssl accelerator for UWC.
internet <-> apache/ssl <-> backend port 80
I configured my apache with mod_proxy and mod_proxy_html.
Here are the concerning config lines:
LoadModule headers_module modules/mod_headers.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadFile    /usr/lib/libxml2.so
LoadModule proxy_html_module    modules/mod_proxy_html.so
ProxyPass / http://backend.domain.com/
ProxyPassReverse / http://backend.domain.com/
<Location />
        ProxyPassReverse /
        SetOutputFilter proxy-html
        ProxyHTMLURLMap / /
        ProxyHTMLURLMap http://backend.domain.com:80/ http://webplex.domain.com/
        ProxyHTMLExtended On
        RequestHeader unset Accept-Encoding
</Location>For Webmail this configuration works most of the time. There are some minor problems in ie with the folder view. But the real problem is: I can't get UWC to work. The problem seems to be that mod_proxy_html can't replace all of the occurences of backend.domain.com in the html pages.
Especially:
onsubmit="handleSubmit()" action="http://webplex.domain.com/amserver/UI/Login?goto=http://backend.domain.com:80/uwc/&gotoOnFail=http://backend.domain.com:80/uwc/?err=1&module=LDAP" method="POST">in the uwc login page.
So my question is:
Is anybody out there who got apache working as reverse proxy for uwc?
Thanks a lot.
PS1:Solaris 10 on V20z, JES2005Q4
PS2: I already configured UWC with the reverse plugin for sun webserver on backend host so that uwc is working through port 80 only. So there should be no problems arise from that.

Hopefully, you'll hear from somebody. I have zero knowledge or experience with Apache.

Is it possible IIS reverse Proxy for WAS ( BSP) ?????

Hi
I am able to setup IIS reverse proxy for Portal and other some internal website and it works well from outside the firewall. But for WAS (for BSP application), it repeatly prompt login screen even after gave correct user ID and password when call through proxy. But it work inside firewall.
So really wonder is it possible to use IIS reverse proxy for WAS?
Thanks
Raibin

Hi Raja
Thanks for your message. But I already read this same and many other BLOGs. Everything talk about manything. And nothing helped me to find the solution. But friday I found the solution myself and happy to share with you and all others.
The problem was related to the extra string getting added with in url to replace /bsp/   to   /bsp(xxxxxxxxxxxxx)/ and finally when I put the entry as below in my IISProxy.xml file, everything became OK.
And I saw so many question related to EP 7.0 for outside access. There is one extra entry we have to put for webdynpro to make EP 7.0 working outside specially for admin screens.
In the below example 'sapep' is Portal and 'sapecc' is ECC 5.0 server.
<ISAPI-config version="1.6">
     <filter name="IisProxy filter" />
     <extension name="IisProxy extension" />
     <mapping name="PORTAL">
          <source>
               <protocol>http</protocol>
               <prefix>/irj</prefix>
               <new-prefix>/irj/</new-prefix>
          </source>
          <source>
               <protocol>http</protocol>
               <prefix>/logon/</prefix>
          </source>
          <source>
               <protocol>http</protocol>
               <prefix>/webdynpro/</prefix>
          </source>
          <target>
               <protocol>http</protocol>
               <host>sapep.domain.com</host>
               <port>50000</port>
          </target>
     </mapping>
     <mapping name="BSP">
          <source>
               <protocol>http</protocol>
               <prefix>/sap/</prefix>
          </source>
          <source>
               <protocol>http</protocol>
      <prefix>/sap(bD1lbiZjPTA5NiZkPW1pbg==)/</prefix>
          </source>
          <target>
               <protocol>http</protocol>
               <host>sapecc.domain.com</host>
               <port>1080</port>
          </target>
     <compress-types>text/html, text/plain</compress-types>
     </mapping>
</ISAPI-config>
I hope this will many to solve their problems.
Thanks
Raibin

Setting apache reverse proxy for EP6SP2

Hi friends,
I want to set apache reverse proxy for EP6SP2. But after doing the following changes, it is showing the SAP J2EE Engine documentation page.
The following changes has been dont to httpd.conf:
NameVirtualHost 1.1.1.1:80
<VirtualHost 1.1.1.1:80>
ProxyRequests Off
ServerName ep6.xyz.com
ProxyPreserveHost On
proxyPass / http://ep6.xyz.com:50000/
proxyPassReverse / http://ep6.xyz.com:50000/
ErrorLog logs/base.80.error.log
CustomLog logs/base.80.custom.log common
</VirtualHost>
Help needed.
Regards,
Nilz

Hi,
I have a problem with my proxy:
ssl.conf.in like
ProxyPass /irj http://debmsu06.server.###.de:50300/irj
ProxyPassReverse /irj http://debmsu06.server.###.de:50300/irj
RewriteRule ^/$ /irj/portal [R]
If I use URL:
https://bebuyer.###.de/ goto https://bebuyer.###.de/irj/portal
but if I use
https://bebuyer.###.de/irj/
I get the info:
https://bebuyer.###.de/irj/HTTPS:/bebuyer.###.de:443/irj/index.html
What is happened? How I can redirect to /irj/portal?
Of course I can use
http://debmsu06.server.###.de:50300/irj/
Could you please give me some tips?
Best Thanks!
Heren Zhou

Reverse Proxy for OIF on iPlanet

hi,
I am trying to implement reverse proxy for OIF r3 Identity Provider on iPlanet.
I configured the obj.conf of iPlanet accordingly.
<Object name="passthrough1">
Service fn="service-passthrough" servers="http://backendIDP.com:80"
Error reason="Bad Gateway" fn="send-error" uri="C:/Sun/WebServer6.1/docs/badgateway.html"
</Object>
<Object Default>
NameTrans fn="assign-name" from="/fed/" name="passthrough1"
NameTrans fn="assign-name" from="/fed/*" name="passthrough2"
</Object>
when i tried the IDP initiated proxy url in a browser like (http://proxy.com/fed/idp/initiatesso?providerid=XXXXXXXX&returnurl=YYYY)
immediately its being forwaded to backend Identity Provider for authentication like(http://backendIDP.com/sso/jsp/salogin.jsp?doneURL=/user/loginsso&refID=id-ysJ-7-1PR9k-QI2bg9zZkPdyHPw-)
I was expecting that it is redirected to Proxy URL like (http://proxy.com/sso/jsp/salogin.jsp?doneURL=/user/loginsso&refID=id-ysJ-7-1PR9k-QI2bg9zZkPdyHPw-)
At the end it is giving me null pointer exception instead of return URL "YYYYY"
Does any one know how to fix the error.

web or weblogic.xml files on your RPS needs to define for each case like if inbound port is 7011 then send it to PIA:7011 and http and the same for 7012 then send it to PIA:7012 and https. in the webprofile configuration for your RPS profile, set both https and http relative URLS. I believe you could start using this info and I am sure you could figure out the rest.

Reverse Proxy for SharePoint 2013

Hi,
I need to setup SharePoint 2013 environment which needs to be accessible from mobile devices e.g. iPAD/Android, for reverse proxy, I am looking at apache or IIS ARR since UAG is going to be deprecated. So far any one setup apache (on
RHEL 6.x)
or IIS ARR(on W2K8R2) successfully as reverse proxy for SharePoint 2013 access? Is there any issue? and which SharePoint authentication method should be configured?
Must is be Form based authentication? As I read some articles it seems ARR supports Windows authentication. Thanks in advance.

IIS ARR doesn't authenticate users, it is a pass-through (unlike UAG which can do auth or anon). Both IIS AAR and the new Web Proxy Role in Server 2012 R2 do not work with SharePoint 2013 Apps.
Trevor Seward
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Error using "Microsoft ODBC for Oracle" driver

I am trying to connect to Oracle 10g Express Edition from Access 2003 on Windows XP. I created a DSN using "Microsoft ODBC for Oracle" driver. When I try to connect using ADO, I get this error:
[Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed
I googled this error and got a lot of hits but no solution.
Any help would be greatly appreciated. I am new to Oracle and am coming from SQL Server 2000.
Thanks a lot!

This is the connection string I am using:
Conn1.ConnectionString = "driver={Oracle in XE};Dbq=GMIS_LIVE.WORLD;Uid=Administrator;Pwd=ubs;"
These are the contents of my tnsnames.ora (what entries do I add to make this work)?
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = your-a9279112e3)(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)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)

I made a free website using iweb and my host is dropbox but it is not showing in every search engine,i have to use a proxy for my site to pop up

i made a free website using iweb and my host is dropbox but it is not showing in every search engine,i have to use a proxy for my site to pop up

Possibly because dropbox is not really a proper webhost - it might be better if you went and signed up for proper web hosting from somewhere like http://www.godaddy.com or http://www.hostexcellence.com.
Have you told Google that you site exists? If not, then you need to do so - http://www.google.com/addurl.

Encountered ora-29701 during Sun Cluster for Oracle RAC 9.2.0.7 startup (UR

Hi all,
Need some help from all out there
In our Sun Cluster 3.1 Data Service for Oracle RAC 9.2.0.7 (Solaris 9) configuration, my team had encountered
ora-29701 *Unable to connect to Cluster Manager*
during the startup of the Oracle RAC database instances on the Oracle RAC Server resources.
We tried the attached workaround by Oracle. This workaround works well for the 1^st time but it doesnt work anymore when the server is rebooted.
Kindly help me to check whether anyone encounter the same problem as the above and able to resolve. Thanks.
Bug No. 4262155
Filed 25-MAR-2005 Updated 11-APR-2005
Product Oracle Server - Enterprise Edition Product Version 9.2.0.6.0
Platform Linux x86
Platform Version 2.4.21-9.0.1
Database Version 9.2.0.6.0
Affects Platforms Port-Specific
Severity Severe Loss of Service
Status Not a Bug. To Filer
Base Bug N/A
Fixed in Product Version No Data
Problem statement:
ORA-29701 DURING DATABASE CREATION AFTER APPLYING 9.2.0.6 PATCHSET
*** 03/25/05 07:32 am ***
TAR:
PROBLEM:
Customer applied 9.2.0.6 patchset over 9.2.0.4 patchset.
While creating the database, customer receives following error:
ORA-29701: unable to connect to Cluster Manager
However, if customer goes from 9.2.0.4 -> 9.2.0.5 -> 9.2.0.6, the problem does not occur.
DIAGNOSTIC ANALYSIS:
It seems that the problem is with libskgxn9.so shared library.
For 9.2.0.4 -> 9.2.0.5 -> 9.2.0.6, the install log shows the following:
installActions2005-03-22_03-44-42PM.log:,
[libskgxn9.so->%ORACLE_HOME%/lib/libskgxn9.so 7933 plats=1=>[46]langs=1=> en,fr,ar,bn,pt_BR,bg,fr_CA,ca,hr,cs,da,nl,ar_EG,en_GB,et,fi,de,el,iw,hu,is,in, it,ja,ko,es,lv,lt,ms,es_MX,no,pl,pt,ro,ru,zh_CN,sk,sl,es_ES,sv,th,zh_TW, tr,uk,vi]]
installActions2005-03-22_04-13-03PM.log:, [libcmdll.so ->%ORACLE_HOME%/lib/libskgxn9.so 64274 plats=1=>[46] langs=-554696704=>[en]]
For 9.2.0.4 -> 9.2.0.6, install log shows:
installActions2005-03-22_04-13-03PM.log:, [libcmdll.so ->%ORACLE_HOME%/lib/libskgxn9.so 64274 plats=1=>[46] langs=-554696704=>[en]] does not exist.
This means that while patching from 9.2.0.4 -> 9.2.0.5, Installer copies the libcmdll.so library into libskgxn9.so, while patching from 9.2.0.4 -> 9.2.0.6 does not.
ORACM is located in /app/oracle/ORACM which is different than ORACLE_HOME in customer's environment.
WORKAROUND:
Customer is using the following workaround:
cd $ORACLE_HOME/rdbms/lib make -f ins_rdbms.mk rac_on ioracle ipc_udp
RELATED BUGS:
Bug 4169291

Check if following MOS note helps.
Series of ORA-7445 Errors After Applying 9.2.0.7.0 Patchset to 9.2.0.6.0 Database (Doc ID 373375.1)

Gig Ethernet V/S SCI as Cluster Private Interconnect for Oracle RAC

Hello Gurus
Can any one pls confirm if it's possible to configure 2 or more Gigabit Ethernet interconnects ( Sun Cluster 3.1 Private Interconnects) on a E6900 cluster ?
It's for a High Availability requirement of Oracle 9i RAC. i need to know ,
1) can i use gigabit ethernet as Private cluster interconnect for Deploying Oracle RAC on E6900 ?
2) What is the recommended Private Cluster Interconnect for Oracle RAC ? GiG ethernet or SCI with RSM ?
3) How about the scenarios where one can have say 3 X Gig Ethernet V/S 2 X SCI , as their cluster's Private Interconnects ?
4) How the Interconnect traffic gets distributed amongest the multiple GigaBit ethernet Interconnects ( For oracle RAC) , & is anything required to be done at oracle Rac Level to enable Oracle to recognise that there are multiple interconnect cards it needs to start utilizing all of the GigaBit ethernet Interfaces for transfering packets ?
5) what would happen to Oracle RAC if one of the Gigabit ethernet private interconnects fails
Have tried searching for this info but could not locate any doc that can precisely clarify these doubts that i have .........
thanks for the patience
Regards,
Nilesh

Answers inline...
Tim
Can any one pls confirm if it's possible to configure
2 or more Gigabit Ethernet interconnects ( Sun
Cluster 3.1 Private Interconnects) on a E6900
cluster ?Yes, absolutely. You can configure up to 6 NICs for the private networks. Traffic is automatically striped across them if you specify clprivnet0 to Oracle RAC (9i or 10g). That is TCP connections and UDP messages.
It's for a High Availability requirement of Oracle
9i RAC. i need to know ,
1) can i use gigabit ethernet as Private cluster
interconnect for Deploying Oracle RAC on E6900 ? Yes, definitely.
2) What is the recommended Private Cluster
Interconnect for Oracle RAC ? GiG ethernet or SCI
with RSM ? SCI is or is in the process of being EOL'ed. Gigabit is usually sufficient. Longer term you may want to consider Infiniband or 10 Gigabit ethernet with RDS.
3) How about the scenarios where one can have say 3 X
Gig Ethernet V/S 2 X SCI , as their cluster's
Private Interconnects ? I would still go for 3 x GbE because it is usually cheaper and will probably work just as well. The latency and bandwidth differences are often masked by the performance of the software higher up the stack. In short, unless you tuned the heck out of your application and just about everything else, don't worry too much about the difference between GbE and SCI.
4) How the Interconnect traffic gets distributed
amongest the multiple GigaBit ethernet Interconnects
( For oracle RAC) , & is anything required to be done
at oracle Rac Level to enable Oracle to recognise
that there are multiple interconnect cards it needs
to start utilizing all of the GigaBit ethernet
Interfaces for transfering packets ?You don't need to do anything at the Oracle level. That's the beauty of using Oracle RAC with Sun Cluster as opposed to RAC on its own. The striping takes place automatically and transparently behind the scenes.
5) what would happen to Oracle RAC if one of the
Gigabit ethernet private interconnects fails It's completely transparent. Oracle will never see the failure.
Have tried searching for this info but could not
locate any doc that can precisely clarify these
doubts that i have .........This is all covered in a paper that I have just completed and should be published after Christmas. Unfortunately, I cannot give out the paper yet.
thanks for the patience
Regards,
Nilesh

Why do we use reverse proxy for Oracle RAC Cluster setup

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