Connecting to a database over the internet

Hello ,
Ok heres an interesting question -
I would like to have an applet running on my browser which needs to connect to a central server over the internet, which in turn will need to connect to a database and query some results. These results will be stored as flat files within the server.
At the moment, I have a URL that connects to the database via the
internet and that is working. However I don't think my applet on my browser will be able to create a flat file on that server direclty.
Could some one please tell me how to go about this problem?
Shalini

Yes, put a servlet in between the applet and database. Let the servlet interace with the database on the applet's behalf and write that file on the server side.
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hi all
i installed a database oracle 8i enterprise edition on a pc that exists in a town far from me . i wonder can i connect to this database through the internet from my house
please i need a answer
thanks in advance

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JDBC MYSQL localhost vs. over the internet

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I have a Java application that I want people to run from their machine that access my web server over the internet and connects to my MYSQL database. It uses webstart to download application to their machine where they run it locally. Here is how I have this setup. Is this not a standard practice? Or should I have used a different Java technology to have them run the application directly from my server using localhost instead of mywebsite?
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Edited by: crusherdestroyer on Jan 20, 2010 10:29 AM

Good evening, CD.
As the others have said, you should not have your SQL server exposed to the public. If you use ACLs or similar and allow only trusted hosts to access your MySQL server, you should be fine to continue as-is (Java client connecting to TCP port 3306 of your server if I understand your explanation correctly.) If you want to convert your simple application to a server-side app, you could also use something like procrun if your server is running Windows or jsvc for UNIX/Linux. This will enable you to run your app as a service/daemon and you could configure it to listen on an arbitrary port for incoming connections and use the app as an intermediary for interfacing connecting clients with your MySQL database. This is just another idea opposed to installing and configuring Tomcat, Jetty, or the like and possibly a webserver in front of that.
Regards,
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Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How do I access my time capsule over the internet

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The TC should be in bridge mode.. not setup to share over wan.. that will never work. That is assuming you haven't bridged the ATT router.
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Who is your ISP? How you are trying to access your Camera from the remote location? Along with Port 1024 you need to do port forwarding for port 80 on your router for the Cameras IP address. As WVC80N works on your HTTP Port.
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Not able to connect remote oracle database over VPN

I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.

6b6c669e-6baa-45c4-a6dc-444aef2d5e7a wrote:
I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.
First, this is a forum of volunteers. There is no "urgent" here.
"Urgent" means one of two things -
1) people are dying, or
2) you have a customer-facing, revenue-producing production system that is down.
(And to get some perspective on the second case, keep the first in mind.)
For the first, you call whatever civil emergency service seems appropriate.
For the second, you open an SR with Oracle - which requires a paid-up support contract. For *them* to consider your problem "urgent", you will need to demonstrate that your problem falls under item #2. I seriously doubt your problem fits that criteria.
You don't have a support contract? Now you know the exact dollar figure that your company places on the data.
That said, you need to understand a few things about your specific problem,
First, port 1521 is only used by the listener to accept a connection request. Once it gets that request (and finds that it is for a service (sid) that it knows about, it will fork a server process and tell the requesting client that it can communicate with that server process over some other port .. a randomly chosen port number in the "high" range. It could be your vpn is blocking that other port, whereas your internal firewall is not.
But this is just an educated guess since I cannot find "can not connect remote oracle database over VPN" in any error message manual. If you had mentioned the VPN along with an actual oracle error message we could be much more precise in our diagnoses and recommendations.
---- edit 22 Sep
It occurred to me that I just assumed you were using the same client machine in both cases ... a laptop that you use both at work (local network) and home (vpn). If that assumption is false, there are probably problems with your tns setup on the home (vpn) machine.
But again, it would be much easier to help if you gave us an actual error message.

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I have one issue here which is bit technical,
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ERROR DETAILS:
To access external data, add a cross-domain policy file to the external data web server.
For more information, on the Adobe website, see the article u201CCross-domain Policy File Specificationu201D.
If the problem persists, contact the file creator or your system administrator.
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Connection Type: Excel XML Maps
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Please suggest me possible Solutions.

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