Client server exchange information

My prog reads some ini files, adjusts them to key/values and present the user pages with actual values.
The user is then ready to change the values and when done I write a 2nd file with updated values.
The machine keeps on checking for my files, when it finds one it loads it, deletes it and writes his own files (the ones I read).
I can't figure out a way to inform the user that the values have been accepted, processed and are now "in production".
I tried to use a while(file_exists(path)) {empty loop} in the page called by the action tag of the form. The idea was to reload the calling page (which instanciates the objects and thus with new values) when the file disappears. Does not work.
I think that the "action" page will only be displayed once the script has finished (the file has been deleted).

Hi,
I can't understand your concern, could you please describe your problem in more detail?
Do you use Exchange server?
Best regards,
Belinda Ma
TechNet Community Support

Similar Messages

Unable to initialize the Microsoft Exchange Information Store service because the clocks on the client and on the server machine are skewed

Each time I restart this exchange server, the Information Store and System Attendant don't start. If It try to manually start the services, I get the follow errors:
Event ID 5003:
Unable to initialize the Microsoft Exchange Information Store service because the clocks on the client and on the server machine are skewed. This may be caused by a time change either in the client or the server machine, and may require a reboot of that machine. Other than that, verify that your domain is properly configured and is currently online.
Event ID 1005:
Unexpected error The clocks on the client and server machines are skewed. ID no: 80090324 Microsoft Exchange System Attendant occurred.
The clocks on the domain controllers and the exchange server are set to the same time zones. As well, all three clocks are in sync down to the second. Any ideas on what's causing this and how to fix it?

Run this Command from the Exchange Server
Net time \\ADServerName /Set
and confirm the action,
and then you need to restart the service
Microsoft Exchange Active Directory Topology Service
and confirm you are not getting the Error 4001 in the event Viewer.
Thank you, it resolved my issue after being sweating looking for solution.
How can I prevent this from happening? I cannot restart services on each server reboot nor lose 5 years of my life!!!
Sokratis Laskaridis MCP, MCTS, MCITP, Small Business Specialist Netapp ASAP, Symantec STS

Exchange Server 2013- Information Store Service not starting

Hi Everyone,
We are having an issue with one of our Exchange Servers that is running Exchange Mailbox server role.
Server : Exchange 2013 CU3 , Windows Server 2012 R2
We noticed on Friday that its "Information Store Service" has stopped working and we try to manually run it (Services->Microsoft
Exchange Information Store Service -> Start)
Service didn't start and gave : Error 0x80004005 Unspecified Error
Trying to start the service using the command line using: net start MSexchangeIS gave us a different error:
System Error 16389 has Occurred
The system can not find message text for message number 0x4005 in the message file for BASE
Event viewer has (Event ID : 7031):
The Microsoft Exchange Information Store service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 5000 milliseconds: Restart the service.
Since we have got this error we have tried some fixes such as Checking Time synchronisation and IPv6 issues. But nothing
seems to have caused this. We have rebuild the windows server from scratch and used the recover server switch to rebuild the Exchange server. Still the same issue.
Any help would be greatly appreciated.

Hi Tiraj,
Any update? Does the issue still occur after install Exchange server on Windows Server 2012?
I wonder if the issue occurs suddenly or did you configured something on database.
In addition, overload on server could also cause the issue.
Regards,
Rebecca Tu
TechNet Community Support

Outlook clients get "Contacting the server for information"

Hi,
I've recently setup a new production Exchange 2010 Enterprise Edition server running on Windows 2008 R2 Enterprise. Everything is working fine except for user's are getting a pop up in Outlook 2010 that says "contacting the server for information" when fowarding messages with imbedded html. Outlook 2007 user's don't get the pop-up, but it still takes a long time for the message to send. After they click the send button, it just sits on thier screen for about 20 seconds. All other email messages are fine. The messages are small, even a 26kb message will do this. Has anyone seen this before, or have any ideas about what needs to be changed for the messages to be sent out at an acceptable time. All users are configured for cached mode in Outlook and this happens for user's on the same LAN as the server and for user's on a different LAN. At this point, we only have 10 or so user's on the server, but are getting ready to migrate several hundred over.
Thanks,
JScott2

Hi JScott2,
If you test the issue in OWA, will it still take a long time to send? If you use online mode in Outlook, can you reproduce the issue?
The information you mentioned is "Outlook is retrieving data from the Microsoft Exchange server" right? If so, please refer to the suggestions in the following thread:
http://social.technet.microsoft.com/Forums/en-US/exchangesvrclients/thread/b2afa738-0fba-4060-892f-6a3917744811
I also suggest you install latest patch of Exchange 2010 and test the issue, Update Rollup 2 for Exchange Server 2010 (KB979611):
http://www.microsoft.com/downloads/details.aspx?FamilyID=6d3ae3e0-3982-46d6-9e9c-7d7d63fae565&displaylang=en
Hope this helps. Thanks,
Elvis

I Need Information about Open Source Java Client/Server Instant Messaging

I need your valuable help and collaboration with the following issue:
I need to know where can find a robust Open Source Java Instant Messaging Client/Server Application.
I thank in advance for their valuable time. And for the attention and the collaboration lent to me.

I was going to mention that right off, but since the OP is clearly unaware of the search engines on the Web, I thought I'd give him a hand. Jabber works pretty good - I tried it a while back and some of the clients were ... quirky.

Client - server mesage exchange

hey guys im having trouble with my client/server application.. I can connect the server and client and the server can recieve messages from single clients by using threads but when multiple clients are connected the messages are not "re-transmitted" to them any ideas?!?!? this is the code for my thread:
import java.lang.*;
import java.net.*;
import java.io.*;
import java.util.*;
//import ServerEngine;
public class ServerThread extends Thread {
Date today = new Date();
private ServerEngine serverEngine = null;
private Socket socket = null;
public ServerThread(Socket socket) {
super("ServerThread");
this.serverEngine = new ServerEngine();
this.socket = socket;
System.out.println (today);
public void run() {
BufferedReader inStream;
PrintWriter outStream;
String request, response = "";
System.out.println("ServerThread: starting on port " + socket.getLocalPort());
try {
inStream = new BufferedReader (new InputStreamReader(socket.getInputStream()));
outStream = new PrintWriter(socket.getOutputStream(), true);
request = inStream.readLine();
while ((request != null) && (response != null)) {
response = serverEngine.transact(request);
if (response != null) {
System.out.println(socket.getInetAddress() + " @ " + today + " : " + response);//The clients IP address and the time is recoreded and printed on the Server screen
outStream.println(response);
request = inStream.readLine();
outStream.close(); inStream.close(); socket.close();
} catch (Exception e) {
System.out.println("Connection Lost");
}

Use code tags when you post code.
I don't believe you posted enough code.
Your description is a little vague. A message has a source and a destination. That is true whether the client sends to the server or the server sends to the client. Your description doesn't make it clear what does happen and what you expect to happen after the client sends to the server.

Error while installing exchange2007 : Unable to initialize the Microsoft Exchange Information Store service. Failed to find the

Hi,
I am trying fresh install of exchange2007, everything gone well but, finally it thrown a error saying :
Unable to initialize the Microsoft Exchange Information Store service. Failed to find the working directory parameter from the registry - Error 0x80004005.
the installation log says
6/5/2007 3:14:05 PM] [1] Processing component 'Mailbox Service Control (Last)' (Starting mailbox services).
[6/5/2007 3:14:05 PM] [1] Executing 'start-SetupService -ServiceName MSExchangeIS -MaximumWaitTime "unlimited"', handleError = False
[6/5/2007 3:14:05 PM] [2] Launching sub-task '$error.Clear(); start-SetupService -ServiceName MSExchangeIS -MaximumWaitTime "unlimited"'.
[6/5/2007 3:14:05 PM] [2] Beginning processing.
[6/5/2007 3:14:05 PM] [2] The maximum wait for the operation is set to 'unlimited'.
[6/5/2007 3:14:05 PM] [2] Service checkpoint has progressed. Previous checkpoint='0' - Current checkpoint='1'.
[6/5/2007 3:14:05 PM] [2] Will wait '10000' milliseconds for the service 'MSExchangeIS' to reach status 'Running'.
[6/5/2007 3:14:15 PM] [2] Service 'MSExchangeIS' failed to reach status 'Running' on this server after waiting for '10000' milliseconds.
[6/5/2007 3:14:15 PM] [2] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure.
[6/5/2007 3:14:15 PM] [2] [ERROR] Unexpected Error
[6/5/2007 3:14:15 PM] [2] [ERROR] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure.
[6/5/2007 3:14:15 PM] [2] Ending processing.
[6/5/2007 3:14:15 PM] [1] The following 1 error(s) occurred during task execution:
[6/5/2007 3:14:15 PM] [1] 0. ErrorRecord: Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure.
[6/5/2007 3:14:15 PM] [1] 0. ErrorRecord: Microsoft.Exchange.Configuration.Tasks.ServiceFailedToStartException: Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure.
[6/5/2007 3:14:15 PM] [1] [ERROR] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure.
[6/5/2007 3:14:15 PM] [1] Setup is halting task execution because of one or more errors in a critical task.
[6/5/2007 3:14:15 PM] [1] Finished executing component tasks.
[6/5/2007 3:14:15 PM] [1] Ending processing.
[6/5/2007 3:14:18 PM] [0] End of Setup
[6/5/2007 3:14:18 PM] [0] **********************************************
this I am trying on my test system please help me out in resolving the issue
thanks in advance,

Gary,
Open Registry Editor.
In Registry Editor, navigate to the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
Create the following value (REG_SZ): Working Directory and give it a value that points to the new database folder.
Make sure you back up the registry before you do any changes on it.
Raj

Client/server program validation - is it possible?

I've been mulling over this problem for a few days, and am starting to wonder if it's theoretically possible to find a solution. I'm not looking for specific code, this probably won't even be implemented in Java, I'm just wondering if there is a theoretical program model that would work in this situation.
The short version:
Validate the data generated by a client program, without knowing the original data.
The long version:
This is a "profiling" system for a MMOG (Massively Multiplayer Online Game). The MMOG is an internet based client/server graphical program where each client connects to the server and they interact with each other and the virtual world. They pay a monthly fee for access to the game. My program is not affiliated with the MMOG or its makers. I have no connections inside the company and cannot expect any cooperation from them.
The "profiling" system is also a client/server model. The client program runs in the background while the MMOG client is active. It accesses the memory of the MMOG client to retrieve information about the player's character. Then, possibly on request or maybe immediately, it sends the character data to our server.
What I want to validate is that the character data being sent is unmodified and actually comes from the MMOG program.
I can reasonably expect that with mild encryption and some sort of checksum or digest, the vast majority of problems can be avoided. However, I am not sure it's possible to completely secure the system.
I assume that the user has access to and knowledge of the profiler client and the MMOG client, their assembly code, and the ability to modify them or create new programs, leveraging that knowledge. I also assume that the user does not have access to or knowledge of either of the server applications - the MMOG server or mine.
In a worst-case scenario, there are several ways they could circumvent any security I have yet been able to think of. For instance, they could set up a fake MMOG client that had the data they wanted in memory, and let the profiler access that instead of the real thing. Or, they could rewrite the profiler to use the data they wanted and still encrypt it using whatever format I had specified.
I have been considering using some kind of buffer overflow vulnerability or remote execution technique that would allow me to run specific parts of the client program on command, or get information by request, something that could not be anticipated prior to execution and thus could not be faked. But this seems not only insecure for the client but also not quite solid enough, depending on how it was implemented.
Perhaps a series of apparently random validation codes, where the client does not know which one actually is doing the validation, so it must honor them all. Again, this is very conceptual and I'm sure that I'm not explaining them very well. I'm open to ideas.
If I don't come up with anything better, I would consider relying on human error and the fact that the user will not know, at first, the relevance of some of the data being passed between client and server. In this case, I would include some kind of "security handshake" that looks like garbage to the client but actually is validated on the server end. A modified program or data file would result in an invalid handshake, alerting the server (and me) that this client was a potential problem. The client would have no idea anything had gone wrong, because they would not know what data the server was expecting to receive.
I hope I have not confused anyone too much. I know I've confused myself....

Yes, that is the general model for all MMOGs these days - no data that can actually affect the game is safe if loaded from the client's computer. All character and world data is sent from server to client and stored in memory. Any information that is saved to the client's computer is for reference only and not used by the game engine to determine the results of actions/events etc.
My program accesses the MMOG client's memory while the game is running, and takes the character information from there. It does not have direct access to the MMOG server, and does not attempt to modify the data or the memory. Instead, it just encrypts it and sends it to our server, where the information is loaded into a database.
The security issue comes into play because our database is used for ranking purposes, and if someone were to hack my program, they could send invalid data to our servers and affect the rankings unfairly.
I'm just trying to think of a way to prevent that from happening.

RPC request to the Microsoft Exchange Information Store service for log truncation

Hello all
Running Exchange 2013 CU3 on Windows 2008R2 sp1 in a two node DAG. We are seeing the bellow warning when running a backup. How to resolve this?
RPC request to the Microsoft Exchange Information Store service for log truncation failed for database CoramB3\Servername. Error: Failed to notify source server 'servername.coram.com' about the local truncation point. Hresult: 0xc8000713. Error: Unable to find
the file. Also log files are not being flushed
Bulls on Parade

Hello,
Please verify backup software.
Please use vssadmin list writers command to check the status of the VSS admin. If it is in a
failed state, please restart the Exchange replication service and then check the status again.
Please use Get-MailboxDatabaseCopyStatus cmdlet to view health and status information about mailbox database copies.
Please use Get-DatabaseAvailabilityGroupNetwork “DAG Name” | fl cmdlet to view configuration and state information for a DAG network.
Please use Get-DatabaseAvailabilityGroupNetwork DAG Name\MAPINetwork | fl cmdlet and Get-DatabaseAvailabilityGroupNetwork DAG Name\ReplicationNetwork | fl cmdlet to
check configuration information for MAPI network and Replication Network.
If the above configuration information is ok, please check if there are other related errors in application log.
Cara Chen
TechNet Community Support

#550 5.2.0 STOREDRV.Deliver: The Microsoft Exchange Information Store service reported an error.

Hi,
I created a mailbox few days before, everythign was working fine and suddenly when some one tried to send email on that mailbox it bounced back with following error:
There's a problem with the recipient's mailbox. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: Mail01.abc.com
[email protected]
#550 5.2.0 STOREDRV.Deliver: The Microsoft Exchange Information Store service reported an error. The following information should help identify the cause of this error: "MapiExceptionNotFound:16.18969:9A000000, 17.27161:00000000CC000000000000000600000000000000,
255.23226:00000000, 255.27962:FE000000, 255.17082:0F010480, 0.26937:94000000, 4.21921:0F010480, 255.27962:FA000000, 255.1494:00000000, 255.26426:FE000000, 4.7588:0F010480, 4.6564:0F010480, 2.17597:00000000, 2.25805:00000000, 4.8936:0F010480, 4.14312:0F010480,
4.2199:0F010480, 2.25805:00000000, 4.8936:0F010480, 2.22957:00000000, 2.19693:00000000, 2.17917:00000000, 2.27341:00000000, 4.8936:0F010480, 4.17097:0F010480, 4.8620:0F010480, 255.1750:0F010480, 0.26849:0F010480, 255.21817:0F010480, 0.26297:0F010480, 4.16585:0F010480,
0.32441:0F010480, 4.1706:0F010480, 0.24761:0F010480, 4.20665:0F010480, 0.25785:EC030000, 4.29881:0F010480". ##
Original message headers:
Received: from Mailbox.abc.com ([fe80::892d:93d6:b1ac:b70a]) by mail01
([10.72.0.95]) with mapi; Fri, 11 Jan 2013 14:04:55 +0500
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Anwar Amjad <[email protected]>
To: All-HEC <[email protected]>
Date: Fri, 11 Jan 2013 14:04:53 +0500
Subject: FW: Suggestions & New Arrival in HEC Library
Thread-Topic: Suggestions & New Arrival in HEC Library
Thread-Index: Ac3vHgwR50OLs2BnQuOzo9jWg4e1gQAvJtUw
Message-ID: <[email protected]>
References: <[email protected]>
In-Reply-To: <[email protected]>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <[email protected]>
MIME-Version: 1.0
X-Auto-Response-Suppress: DR, OOF, AutoReply
After this error, i treid to send email again and there is no error and email was delivered. What was the cause of this error?
Hasan

Hi,
I tried to start seeding again but it is at same status. I will try again and hopefully it will get resolved.
But, yesterday i ran in to the most complex issue i have ever seen with Exchange.
There was a unexpected power cut at our datacentre due to which both the nodes went down.
After that both the nodes came up. But the all 3 databases were dismounted.
Therefore, i ran Eseutil /mh resulting dirty shutdown.
I was able to repair 2 databases.
But the 3rd one was not mounting with below error.
Microsoft Exchange Error
Failed to mount database 'Mailbox Database'.
Mailbox Database
Failed
Error:
Exchange is unable to mount the database that you specified. Specified database: XXXXX\First Storage Group\Mailbox Database; Error code: MapiExceptionJetErrorAttachedDatabaseMismatch: Unable to mount database. (hr=0x80004005, ec=-1216).
I was able to mount database somehow. There are 7 User mailboxes (Tier 1) on this database.
All emails sent to the users in this database are bouncing back with the below error.
This storage groups holds the mailboxes of my Senior Managements. And their mailboxes are down for almost 20 Hrs. I am spinning my head since yesterday but not able to find any fix. Can you please guide me in this concern.
Best Regards
K2
Kapil Kashyap

Unable to initialize the Microsoft Exchange Information Store service. - Error 0x96f.

PLease help, I've rstored from backup three times with no success I'm getting the following error
"Unable to initialize the Microsoft Exchange Information Store service. - Error 0x96f. "
It's LDap related but i have no idea why :-(
Best Regards Bernhard

IPv6 had been disabled for months on my SBS 2008 Server running Exchange 2007 SP1. I ran 40 or so Windows Updates; subsequently, the next morning Exchange was no longer running; topology issues, event ID 2604, 2114 and 2601 were all over my Application
Log. After 12 hours of research I found this post; figured it was worth a shot and instantly all my services for Exchange fired up. Thanks for the tip; I have no idea which update changed what in regards to needing IPv6 enabled, but that silly
little check mark fixed it.
Thank you for sharing your solution!
Dan

FU Ant task failure: java.util.concurrent.ExecutionException: could not close client/server socket

We sometimes see this failure intermitently when using the FlexUnit Ant task to run tests in a CI environment. The Ant task throws this exception:
java.util.concurrent.ExecutionException: could not close client/server socket
I have seen this for a while now, and still see it with the latest 4.1 RC versions.
Here is the console output seen along with the above exception:
FlexUnit player target: flash
Validating task attributes ...
Generating default values ...
Using default working dir [C:\DJTE\commons.formatter_swc\d3flxcmn32\extracted\Source\Flex]
Using the following settings for the test run:
FLEX_HOME: [C:\dev\vert-d3flxcmn32\302100.41.0.20110323122739_d3flxcmn32]
haltonfailure: [false]
headless: [false]
display: [99]
localTrusted: [true]
player: [flash]
port: [1024]
swf: [C:\DJTE\commons.formatter_swc\d3flxcmn32\extracted\build\commons.formatter.tests.unit.sw f]
timeout: [1800000ms]
toDir: [C:\DJTE\commons.formatter_swc\d3flxcmn32\reports\xml]
Setting up server process ...
Entry [C:\DJTE\commons.formatter_swc\d3flxcmn32\extracted\build] already available in local trust file at [C:\Users\user\AppData\Roaming\Macromedia\Flash Player\#Security\FlashPlayerTrust\flexUnit.cfg].
Executing 'rundll32' with arguments:
'url.dll,FileProtocolHandler'
'C:\DJTE\commons.formatter_swc\d3flxcmn32\extracted\build\commons.formatter.tests.unit.swf '
The ' characters around the executable and arguments are
not part of the command.
Starting server ...
Opening server socket on port [1024].
Waiting for client connection ...
Client connected.
Setting inbound buffer size to [262144] bytes.
Receiving data ...
Sending acknowledgement to player to start sending test data ...
Stopping server ...
End of test data reached, sending acknowledgement to player ...
When the problem occurs, it is not always during the running of any particular test (that I am aware of). Recent runs where this failure was seen had the following number of tests executed (note: the total number that should be run is 45677): 18021, 18, 229.
Here is a "good" run when the problem does not occur:
Setting inbound buffer size to [262144] bytes.
Receiving data ...
Sending acknowledgement to player to start sending test data ...
Stopping server ...
End of test data reached, sending acknowledgement to player ...
Closing client connection ...
Closing server on port [1024] ...
Analyzing reports ...
Suite: com.formatters.help.TestGeographicSiteUrls
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 sec
Suite: com.formatters.functionalUnitTest.testCases.TestNumericUDF
Tests run: 13, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.071 sec
Results :
Tests run: 45,677, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 201.186 sec
Has anyone else ran across this problem?
Thanks,
Trevor

I am not sure if this information will help everyone, but here goes...
For us, these problems with FlexUnit tests crashing the Flash Player appear to be related to couple of factors. Recently, we moved up from Flex 3.2 to Flex 4.1 as our development baseline. Many people complained that their development environment (Flash Builder, etc.) was much more unstable. Apparently, 4.1 produces SWFs that require more memory to run than 3.2 does? Anyway, we still had Flash Player 10.1 as our runtime baseline. Apparently, that version of the player was not as capable of running larger FlexUnit test SWFs, and would crash (as I posted months earlier). I upgraded to the latest 10.3 standalone player versions, and the crashes have now ceased. It would be nice to know exactly what was causing the crashes, but memory management (or lack of) is my best guess.
So, if you are seeing these issues, try upgrading to the latest Flash Player version.
Regards,
Trevor

Oracle 9i Forms in Client/Server Mode (Updates in Technical FAQ)

Hi All,
I'm doing an investigation for porting to Oracle Forms 9i and I've found the answers in Oracle 9i Forms Technical FAQ of February 2003. But since it's been more than three and a half years, I would like to know if the following information in the FAQ still holds?
Upgrading to 9i
What versions of Forms can I upgrade to Oracle9i Forms?
Only Forms 6.0 and Forms 6i are supported for direct upgrade to Oracle9i Forms. Older versions of Forms should be upgraded to Forms 6i first.
Can I run Client Server or Character Mode applications in Oracle9i Forms?
No. Oracle9i Forms only supports Web deployment. Applications that need to be run in Client Server or Character Mode should remain in Forms 6i. Forms 6i will be supported until December 31st, 2004, or December 31st, 2007 with Extended Support for customers who wish to maintain such applications.
What changes will I have to make to my application before upgrading?
Many Client Server and Character Mode features have been removed from the Forms product for 9i. The removed features mainly relate to features that where only maintained in Forms 6i for the purpose of backwards compatibility. A detailed list of all of the obsolete features can be found on OTN (/products/forms/pdf/featuresobsolescence.pdf)
Is there an easy way to find out if my modules use obsolete features?
Yes. Oracle supply a separate utility with the Oracle9i Forms distribution "f90plsqlconv". This is a utility which will scan your files for obsolete usages and correct them where applicable. It will also alert you to any changes you may have to make manually.

As far as I know it still holds: Forms9i isn't changed since then.
What I don't see in the FAQs is if you move form client/server to the web that you must be aware that the forms are running on the application server instead of the client PC. So calls to TEXT_IO and HOST etc are also executed on the appserver. You should review those calls and decide were you want to have them executed...(use webutil if you want to keep the execution on the client)
HTH

Applet socket problem in client-server, urgent!

Dear All:
I have implemented a client server teamwork environment. I have managered to get the server running fine. The server is responsible for passing messages between clients and accessing Oracle database using JDBC. The client is a Java Applet. The code is like the following. The problem is when I try to register the client, the socket connection get java.security.AccessControlException: access denied(java.net.SocketPermission mugca.its.monash.edu.
au resolve)
However, I have written a Java application with the same socket connection method to connect to the same server, it connects to the server without any problem. Is it because of the applet security problem? How should I solve it? Very appreciate for any ideas.
public class User extends java.applet.Applet implements ActionListener, ItemListener
public void init()
Authentication auth = new Authentication((Frame)anchorpoint);
if(auth.getConnectionStreams() != null) {
ConnectionStreams server_conn = auth.getConnectionStreams();
// Authenticates the user and establishes a connection to the server
class Authentication extends Dialog implements ActionListener, KeyListener {
// Object holding information relevant to the server connection
ConnectionStreams server_conn;
final static int port = 6012;
// Authenticates the user and establishes connection to the server
public Authentication(Frame parent) {
// call the class Dialog's constructor
super(parent, "User Authentication", true);
setLocation(parent.getSize().width/3, parent.getSize().height/2);
setupDialog();
// sets up the components of the dialog box
private void setupDialog() {
// create and set the layout manager
//Create a username text field here
//Create a password text field here
//Create a OK button here
public void actionPerformed(ActionEvent e) {
authenticateUser();
dispose();
// returns the ConnectionStreams object
public ConnectionStreams getConnectionStreams() {
return(server_conn);
// authenticates the user
private void authenticateUser() {
Socket socket;
InetAddress address;
try {
// open socket to server
System.out.println("Ready to connect to server on: " + port);
socket = new Socket("mugca.its.monash.edu.au", port);
address = socket.getInetAddress();
System.out.println("The hostname,address,hostaddress,localhost is:" + address.getHostName() + ";\n" +
address.getAddress() + ";\n" +
address.getHostAddress() + ";\n" +
address.getLocalHost());
catch(Exception e) {
displayMessage("Error occured. See console");
System.err.println(e);
e.printStackTrace();
}

Hi, there:
Thanks for the help. But I don't have to configure the security policy. Instead, inspired by a message in this forum, I simply upload the applet to the HTTP server (mugca.its.monash.edu.au) where my won server is running. Then the applet is download from the server and running fine in my local machine.
Dengsheng

D2k in client server mode & web environment

Hi friends,
I am using forms 6i with oracle 9i. I have a couple of questions, please advice.
I have developed couple of forms in client server mode and this would be added to an existing application. I have been informed now that the application is web based. I have no idea about how a form can be coded_for or deployed_in web based environment.
Is there any provision to convert the forms developed in client server mode so that we can use it in web based application ?
what is the effort required in doing this conversion ?
Do we have any docs for using d2k forms in a web environment ?
Plz feel free to point out if I have missed any detail without which it is difficult to answer this question.
Thanks
-vish

Hello,
It is very easy to migrate from C/S to web, because of the portabilty of the Forms design code (.fmb)
All you have to do, is to recompile the modules with the new binaries. The only "but" is that some instructions have been depreciated, and you have to rewrite them (often client machine interactions, that are covered by the Webutil library).
goto the OTN Forms home page, then click the Migration link.
Francois

Client server exchange information

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