Establishing a connection to the VIP through an optimizer
We're atttempting to optimize a connection to a VIP on the ACE load balancer from the client PC. We have an optimizer in the Data Center that peers with an optimizer in each client site. The back-end servers that the ACE load balances the connection to are directly connected to the ACE. My question is when the connection is established, should we be seeing on the client side optimizer the connection between the client PC and the back-end server or the client PC and the VIP?
Thanks...
This is a routed mode and I could upload the config, but this is a pretty ordinary question and I don't want to take anymore of your time than necessarry: when I do a capture, I am seeing 2 flows - one is client-VIP and the other is server-client. I was just wondering why I was seeing the server-client flow as the ACE would NAT the real server's IP address back to the VIP on the return flow.
Thanks..
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Hello there,
I have an Excel report I created which works perfectly fine on my dev environment, but fails on my test environment when I try to do a data refresh.
The key difference between both dev and test environments is that in dev, everything is installed in one server:
SharePoint 2013
SQL 2012: Database Instance, SSAS Instance, SSRS for SharePoint, SSAS POWERPIVOT instance (Powerpivot for SharePoint).
In my test and production environments, the architecture is different:
SQL DB Servers in High Availability (irrelevant for this report since it is connecting to the tabular model, just FYI)
SQL SSAS Tabular server (contains a tabular model that processes data from the SQL DBs).
2x SharePoint Application Servers (we installed both SSRS and PowerPivot for SharePoint on these servers)
2x SharePoint FrontEnd Servers (contain the SSRS and PowerPivot add-ins).
Now in dev, test and production, I can run PowerPivot reports that have been created in SharePoint without any issues. Those reports can access the SSAS Tabular model without any issues, and perform data refresh and OLAP functions (slicing, dicing, etc).
The problem is with Excel reports (i.e. .xlsx files) uploaded to SharePoint. While I can open them, I am having a hard time performing a data refresh. The error I get is:
"An error occurred during an attempt to establish a connection to the external data source [...]"
I ran SQL Profiler on my SSAS Server where the Tabular instance is and I noticed that every time I try to perform a data refresh, I get the following entries:
Every time I try to perform a data refresh, two entries under the user name ANONYMOUS LOGON.
Since things work without any issues on my single-server dev environment, I tried running SQL Server Profiler there as well to see what I get.
As you can see from the above, in the dev environment the query runs without any issues and the user name logged is in fact my username from the dev environment domain. I also have a separated user for the test domain, and another for the production domain.
Now upon some preliminary investigation I believe this has something to do with the data connection settings in Excel and the usage (or no usage) of secure store. This is what I can vouch for so far:
Library containing reports is configured as trusted in SharePoint Central Admin.
Library containing data connections is configured as trusted in SharePoint Central Admin.
The Data Provider referenced in the Excel report (MSOLAP.5) is configured as trusted in SharePoint Central Admin.
In the Excel report, the Excel Services authentication settings is set as "use authenticated user's account". This wortks fine in the DEV environment.
Concerning SecureStore, PowerPivot Configurator has configured it the PowerPivotUnnattendedAccount application ID in all the environments. There is
NO configuration of an Application ID for Excel Services in any of the environments (Dev, test or production). Altough I reckon this is where the solution lies, I am not 100% sure as to why it fails in test and prod. But as I read what I am
writing, I reckon this is because of the authentication "hops" through servers. Am I right in my assumption?
Could someone please advise what am I doing wrong in this case? If it is the fact that I am missing an Secure Store entry for Excel Services, I am wondering if someone could advise me on how to set ip up? My confusion is around the "Target Application
Type" setting.
Thank you for your time.
Regards,
P.Hi Rameshwar,
PowerPivot workbooks contain embedded data connections. To support workbook interaction through slicers and filters, Excel Services must be configured to allow external data access through embedded connection information. External data access is required
for retrieving PowerPivot data that is loaded on PowerPivot servers in the farm. Please refer to the steps below to solve this issue:
In Central Administration, in Application Management, click Manage service applications.
Click Excel Services Application.
Click Trusted File Location.
Click http:// or the location you want to configure.
In External Data, in Allow External Data, click Trusted data connection libraries and embedded.
Click OK.
For more information, please see:
Create a trusted location for PowerPivot sites in Central Administration:
http://msdn.microsoft.com/en-us/library/ee637428.aspx
Another reason is Excel Services returns this error when you query PowerPivot data in an Excel workbook that is published to SharePoint, and the SharePoint environment does not have a PowerPivot for SharePoint server, or the SQL Server Analysis
Services (PowerPivot) service is stopped. Please check this document:
http://technet.microsoft.com/en-us/library/ff487858(v=sql.110).aspx
Finally, here is a good article regarding how to troubleshoot PowerPivot data refresh for your reference. Please see:
Troubleshooting PowerPivot Data Refresh:
http://social.technet.microsoft.com/wiki/contents/articles/3870.troubleshooting-powerpivot-data-refresh.aspx
Hope this helps.
Elvis Long
TechNet Community Support -
Firefox can't establish a connection to the server at localhost
I was building a wordpress website on my PC: using Firefox browser, accessing wordpress through WebMatrix which opened Firefox & showed a 'localhost:20238' address. It worked for 5 days then WebMatrix said ' website does not exist. I could still load it for 1 day using browser history. Then that failed too. Have ditched WebMatrix. Now loaded XAMPP & Wordpress (shown as succesful). Putting 'localhost' into address box. Error message: Firefox can't establish a connection to the server at localhost.
Does it work in other browsers?
When you enter http://localhost/ Firefox will try port 80, since that is the standard for web servers. If there is any other software on your computer listening on port 80, the web server might not be able to use it. Can you check your XAMPP settings and try using a different port such as 8080? Then you would access the server using http://localhost:8080/. -
Have an error saying 'Firefox can't establish a connection to the server at localhost:50972. '
I bought a product called 'Helium Music Streamer' and downloaded it. I registered the product and went to launch it..
only it wouldnt launch.
It had the error 'Firefox can't establish a connection to the server at localhost:50972.'
I would be glad for some help
'Hi, in case you haven't solved your problem - here's what i've discovered based on having same issue. where IE proxy system settings automatically allows local host url access; It appears FF system proxy or auto-detect does not, it's settings blocks local host URL access. To access local host, "no proxy" settings should allow or, only way to allow this exception (or any other exceptions) is through their manual settings. You should see in manual settings that the local host is already set to be allowed through.
FF also has plug-ins available which allows you to configure multiple proxy settings/profiles that you can toggle between based on your connection needs. THis way, when you want to use local host you can select it's proxy profile and go back to default proxy settings for regular web surfing, etc
Hope this helps you. -
XE, Failed to establish a connection to the server at 127.0.0.1:8080.
hi ,
i am using XE .yesterday i have logout my application properly.but today in morning when i open my application through
Start :->Program :->Oracle Data base 10g express Edition :->Go To Data Base Home Page
Then it shows me Page Load Error
Failed to Connect
Firefox can't establish a connection to the server at 127.0.0.1:8080.
How can i remove this problem.
Manoj KaushikHi,
Database is running and listener is up ?
Br,Jari
Edited by: jarola on Jun 17, 2010 1:04 PM
Also try search solution from XE forum
Oracle Database Express Edition (XE) -
I'm not entirely displeased with the situation but I cannot see how I could be connecting to the Internet through my airport express when the Airport is not connected to anything.
Weird huh?
I have a separate non- Airport wireless network connected to the Internet. I had previously set-up the Airport to link with this network but disconnected it (by resetting it) as music streaming was unlistenable due to frequent drop out. I now just have the Airport Express as a standalone wireless network only connecting to the stereo to stream music from devices.
My devices are only connected to the Airport network with cellular data off. Yet I can still connect to the Internet AND listen to streaming music (without drop-out no less).
I don't want to fix it but I would like to know how the frag it could happen so i don't screw it up accidentally.I would say you still have something of the previous setup.
To be sure you don't mess up, save the configuration.. go to the top menu area of the airport utility and export configuration.. which will land on your computer.
Now you can recover at anytime to the current setup.
How it works.. that is magical ..
Open the airport utility.. edit.. and take a screenshot and post it of the following pages..
Internet wireless network
THen we can tell you how it is working. -
My MacBook pro will not connect to the Internet through wifi yet all other devices do
My MacBook pro will not connect to the Internet through wifi. I have several other wifi enabled devices and they are all connected to the Internet just fine... What could/would cause this?
Disable your AirPort and enable in a second. Or check, maybe you need to type in correct digits in; Settings/Network/Advanced/Configure...
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My ipod touch says that I am connected to the internet through the setting tab but when i try to get on the internet it says no connection. I tried new downloads and updats and connectioning to other wifi in variouse places and still no luck.
- Reset the iPod:
Reset iPod touch: Press and hold the On/Off Sleep/Wake button and the Home
button at the same time for at least ten seconds, until the Apple logo appears.
- Power off and then back on your router
- Reset network settings: Settings>General>Reset<Reset Network Settings
- The troubleshooting here:
iPhone and iPod touch: Troubleshooting Wi-Fi networks and connections -
My home wireless is no longer recognized, even going through the set-up process. It does not connect to the car through Bluetooth seamlessly--I have to add my phone as a new device each time I get in the car. In attempting to solve these problems I have gone to settings-phone-upgrade and it states that the upgrade is available-select to continue-(which I do)- it checks -please wait and it then states that update not available - try later.
Maybe not too late to help you.
For specifically fixing the Bluetooth, un-pair your phone with the car, and go through the process of repairing the two.
In general, the KK update requires many of us (different phones) to perform a Factory Data Reset after we back up our personal content (pictures, music, movies, or other downloaded files) to a PC or MAC. This will result in you having to do a bit of work to setup icons for the programs you use, and maybe putting in the specifics again for email accounts and other specialized apps. So if you are going to do this sort of thing... copy important information/settings down on paper.
HTH. -
What are the benefits of buying an iPad 2 with wi-fi, or with 3G when I already have an iPhone 4 with 3G? My plan with was to go for wi-fi and connect to the internet through my iPhone 4. Am I missing out on anything by not getting 3G?
James9901 wrote:
I tried the tethering and hated it. The connection breaks every time I get > 25 feet from it and it's a pain to reestablish the connection. I suppose if I had to choose between breaking connections every now and then or paying another $100 + $25/month I'd do the tethering.
Or just carrying the phone in your pocket? Just saying..... -
iam using iphone 4S with win 7 PC and i cannot connect to the internet through my phone but i tried with my other 4S and it works but what should i do for the first iphone 4S???
as i said i have two iphone 4S,,,,,
1st one --- has os 5.1
2nd one has os 6.0
i tried 2nd one with carrier reliance gsm nd it works with that personal hotspot setting using USB...
but i want to connect the first 4S with carrier TATA DOCOMO GSM but its not working with the same USB feature????
plz reply asap...!!!
thnxxx in advance!!!If not this:
iOS: Wi-Fi or Bluetooth settings grayed out or dim
One user reported that placing the iPod in the freezer fixed the problem.
Also heating sometimes works. See:
Why can't I select my wifi settings?
A trick that works frequently with iPhones:
Settings > AirPlane Mode ON, Do Not Disturb ON
Power down and wait 5-10 minutes
Power up
Settings > AirPlane Mode OFF, Do Not Disturb OFF
If not successful, an appointment at the Genius Bar of an Apple store is usually in order.
Apple Retail Store - Genius Bar
Then:
Does the iOS device connect to other networks? See other networks? If yes that tends to indicate a problem with your network.
Does the iOS device see the network?
Any error messages?
Do other devices now connect?
Did the iOS device connect before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
.- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem and it does not connect to any networks make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar -
i cannot connect to the internet through my home router allthough i have put in the correct password from my internt router into my ipod touch-what should i do????????????
- Try resetting your iPod:
Reset iPod touch: Press and hold the On/Off Sleep/Wake button and the Home
button at the same time for at least ten seconds, until the Apple logo appears.
- Power off and then back on your router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- The troubleshooting here:
iPhone and iPod touch: Troubleshooting Wi-Fi networks and connections -
when I use oracle 11 and have it set in automatic (in services) it operates properly. (after restart) When I have it in manual (in services) i get the message 'Firefox can't establish a connection to the server at localhost:1158.'
We use the computer for various instructors but only one uses Oracle. With oracle in auto it takes for ever to log in (2 mins or more), when it is in manual it takes 10 secs for log in.you mean the local.profile?
i have the next values
export ORACLE_BASE=/export/home/oracle
export ORACLE_HOME=/export/home/oracle/app/oracle/product/11.2.0/dbhome_1
export ORACLE_SID=XXX
export ORACLE_TERM=xterm
export ORACLE_OWNER=oracle
export TMP=/export/home/oracle/tmp
export TMPDIR=/export/home/oracle/tmp
export DISPLAY=:0.0
J2RE_HOME=/usr/jdk1.6.0_33; export J2RE_HOME
JAVA_HOME=/usr/jdk1.6.0_33; export JAVA_HOME
JAVA_BIN=/usr/jdk1.6.0_33/bin; export JAVA_BIN
PATH=/usr/jdk1.6.0_33/bin:$PATH; export PATH
& All Matches with the path of the installations of oracle & java
thanks in advance -
Satellite L735-10V - unable to connect to the internet through ethernet
I have problems in connection to the network through ethernet.
i connect the ethernet cable and the laptop connects to the net but after a few seconds it disconnects.
I have no idea what the problem is.
I tried turning off the TCP/IPv6 and it does not work.
Can please someone help me out here.
This is just killing me.Hi
Did you test another Ethernet cable?
Would recommend doing this maybe some lose connection or broken cable cause this. -
Help-how can i connect to the XE through my java application?
Hi, i am trying to connect to the XE through my java application. I have downloaded the jdbc driver tho. but the error occured: cant find the symbol (class oracledatasource not found) . could anyone here tell me what else should i try to fix it? where should i put the jdbc packages ? anyone's prompt reply would be much appreciated! thanks a lot.
Hi ,thank you very much for your guide.
i am actually trying to connect to the XE server through my JSP files.
i download the Oracle jdbc driver packages and put them in the same folder with JSP files. but i did not set the class path tho.
do i have to set the enviroment variables for the classpath of Oracledatasource class? thanks a lot.
another problem i got is installing the JDeveloper, it seemed my computer just got stuck there when installing JDeveloper. my laptop is with 256MB memory tho.
the code i used to connect to the XE server in my jsp file is as below:
<%@ page language="java" contentType="text/html"%>
<%@ page import="java.sql.*" %>
<%@ page import java.sql.Connection%>;
<%@page import java.sql.SQLException%>;
<%@page import oracle.jdbc.pool.OracleDataSource%>;
<%@ page import="java.io.*" %>
<% String jdbcUrl = "jdbc:oracle:thin:@localhost";
Connection conn;
OracleDataSource ds;
ds = new OracleDataSource();
ds.setURL(jdbcUrl);
conn = ds.getConnection(jdbcUrl);
%>
dose it have some problems there?
thanks a lot.
Message was edited by:
Novice
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