Conect clients to public server!

Hi everybody!
I want to conect clients to one public server. I read SAP meterrial and they constraint that SAP Business One does not support Microsoft Windows XP operating system in a server
configuration either as the SAP Business One Server or as a standalone system. I don't understand.
Could you explain for me!

Hello,
you are right. The XP can't be used as server, means that you use it as server standalone and there is no client. You must use server that its OS is W2K3 standard or enterprise edition.
Actually SBO server standalone means that you install SQL server 2005 developer edition, SBO server and license server. if you use another XP and install SBO client there, you will fail to connect to server standalone. This server standalone also means that it will not publish in the LAN or WAN system
Rgds,

Similar Messages

How to conect client with server in wide area network

hi,
this is yasmin riaz..i have installed oracle 8.1.5 enterprise edition on my server and then install oracle 8.1.5 cleint on another pc and then i get connected from client to that server db by net8 asistant on client machine..this setup is working fine at my office means connecting to server via client in local area net work..
now i want to connect to this oracle server from my home client machine which is now on wide area network..i dont know how to connect now from client machine at my home to server machine at my office..
can anyone suggest me how to do this conectivity..
its urgent
thanx in advance
yasmin riaz

while you are connected to the same domain as of oracle server then this is no problem.
varify your domain connection by pinging
the oracle server machine at your office,
ask your network administrator to allow you
enough priveleges and network infrastructure
so that you could see oracle server in
your network neighborhood.
now create your net connect string
and verify it by looking into tnsnames.ora
now try the connection
if the entry of oracle server exists
but it does not connects then
replace the name of oracle server machine
with tcp/ip address of oracle server in
tnsnames.ora

Async tcp client and server. How can I determine that the client or the server is no longer available?

Hello. I would like to write async tcp client and server. I wrote this code but a have a problem, when I call the disconnect method on client or stop method on server. I can't identify that the client or the server is no longer connected.
I thought I will get an exception if the client or the server is not available but this is not happening.
private async void Process()
try
while (true)
var data = await this.Receive();
this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
catch (Exception exception)
How can I determine that the client or the server is no longer available?
Server
public class Server
private readonly Dictionary<IPEndPoint, TcpClient> clients = new Dictionary<IPEndPoint, TcpClient>();
private readonly List<CancellationTokenSource> cancellationTokens = new List<CancellationTokenSource>();
private TcpListener tcpListener;
private bool isStarted;
public event Action<string> NewMessage;
public async Task Start(int port)
this.tcpListener = TcpListener.Create(port);
this.tcpListener.Start();
this.isStarted = true;
while (this.isStarted)
var tcpClient = await this.tcpListener.AcceptTcpClientAsync();
var cts = new CancellationTokenSource();
this.cancellationTokens.Add(cts);
await Task.Factory.StartNew(() => this.Process(cts.Token, tcpClient), cts.Token, TaskCreationOptions.LongRunning, TaskScheduler.Default);
public void Stop()
this.isStarted = false;
foreach (var cancellationTokenSource in this.cancellationTokens)
cancellationTokenSource.Cancel();
foreach (var tcpClient in this.clients.Values)
tcpClient.GetStream().Close();
tcpClient.Close();
this.clients.Clear();
public async Task SendMessage(string message, IPEndPoint endPoint)
try
var tcpClient = this.clients[endPoint];
await this.Send(tcpClient.GetStream(), Encoding.ASCII.GetBytes(message));
catch (Exception exception)
private async Task Process(CancellationToken cancellationToken, TcpClient tcpClient)
try
var stream = tcpClient.GetStream();
this.clients.Add((IPEndPoint)tcpClient.Client.RemoteEndPoint, tcpClient);
while (!cancellationToken.IsCancellationRequested)
var data = await this.Receive(stream);
this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
catch (Exception exception)
private async Task Send(NetworkStream stream, byte[] buf)
await stream.WriteAsync(BitConverter.GetBytes(buf.Length), 0, 4);
await stream.WriteAsync(buf, 0, buf.Length);
private async Task<byte[]> Receive(NetworkStream stream)
var lengthBytes = new byte[4];
await stream.ReadAsync(lengthBytes, 0, 4);
var length = BitConverter.ToInt32(lengthBytes, 0);
var buf = new byte[length];
await stream.ReadAsync(buf, 0, buf.Length);
return buf;
Client
public class Client
private TcpClient tcpClient;
private NetworkStream stream;
public event Action<string> NewMessage;
public async void Connect(string host, int port)
try
this.tcpClient = new TcpClient();
await this.tcpClient.ConnectAsync(host, port);
this.stream = this.tcpClient.GetStream();
this.Process();
catch (Exception exception)
public void Disconnect()
try
this.stream.Close();
this.tcpClient.Close();
catch (Exception exception)
public async void SendMessage(string message)
try
await this.Send(Encoding.ASCII.GetBytes(message));
catch (Exception exception)
private async void Process()
try
while (true)
var data = await this.Receive();
this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
catch (Exception exception)
private async Task Send(byte[] buf)
await this.stream.WriteAsync(BitConverter.GetBytes(buf.Length), 0, 4);
await this.stream.WriteAsync(buf, 0, buf.Length);
private async Task<byte[]> Receive()
var lengthBytes = new byte[4];
await this.stream.ReadAsync(lengthBytes, 0, 4);
var length = BitConverter.ToInt32(lengthBytes, 0);
var buf = new byte[length];
await this.stream.ReadAsync(buf, 0, buf.Length);
return buf;

Hi,
Have you debug these two applications? Does it go into the catch exception block when you close the client or the server?
According to my test, it will throw an exception when the client or the server is closed, just log the exception message in the catch block and then you'll get it:
private async void Process()
try
while (true)
var data = await this.Receive();
this.NewMessage.Invoke(Encoding.ASCII.GetString(data));
catch (Exception exception)
Console.WriteLine(exception.Message);
Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
By the way, I don't know what the SafeInvoke method is, it may be an extension method, right? I used Invoke instead to test it.
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9i client x 10g server

hello,
Is there any way to have a data corruption problem, when a 9i client conects and sends sqls to a 10g server?

It is possible to have a data corruption problem regardless of the configuration. It's possible for a 9i client to 10g server to have a data corruption problem. It's possible for a 9i client to 9i database to have a data corruption problem. It's possible for a 10g client to 10g server to have a data corruption problem.
It is not, however, a likely or expected outcome. Assuming the specific versions of 9i and 10g are appropriately supported in the Metalink client/server compatibility matrix, you shouldn't expect to have a data corruption problem simply because the version of the Oracle client and Oracle server in use differ.
Justin

How to keep track of client in rmi server

how can I keep track of a disconnected client in a rmi server ?
And what logic do I use to disconnect a client fro mthe server ?

When a RMI client receives a stub to the remote object, RMI client runtime sends a dirty() call to the RMI server runtime which in turn helps the RMI server runtime in updating the client references to the remote object. Client reference is nothing but a unique identification generated by client RMI runtime for that instance of JVM. RMI uses a reference counting algorithm for destroying unreferenced remote objects. Once all references (all clients who are holding the stub to this remote object) to a remote object drops to zero, local garbage collector takes care of freeing this remote object.
RMI client runtime initiates a TCP connection with the remote object only when a method is invoked on the stub. RMI transport layer uses a simple connection pooling mechanism to use already established TCP connections with server objects in further remote method invocations. Let's say the client is invoking a remote method on the remote object's stub fetched from the registry service. Now RMI transport layer initiates a TCP connection with the remote object (exported at ("host1", 4567)). After completion of the remote method, RMI client's transport layer keeps the connection open for some time (some configurable value) to take the advantage of the already established TCP connection in future remote method invocations on remote objects exported on the same host and port ("Host1", 4567"). RMI transport layer also takes care of closing these connections if the connections are idle more than configured value of connection open time.
From the RMI server's perspective, once the RMI server runtime receives a remote method invocation request from the RMI client, it creates a new thread and try to dispatch the method on the designated remote object. After returning the results of the remote method to the client, RMI client's transport layer may not end this conservation with this remote object to take the advantage of this TCP connection in future remote method invocations. So the same thread may be used for dispatching another remote method in future. This is actually the side effect of re-using the established TCP connections on the client side.
RMI server maintains client's reference in the client's reference set of the remote object as long as the client holds a normal reference to remote object's stub in its JVM. Once the client relinquishes the reference to the stub (goes out of the scope or setting it to the null), RMI client automatically sends clean() call to the RMI server runtime to update client reference set of the remote object. There is no public API to lookup or manipulate the client references for a given remote object, but you can always unexport the remote object even some clients are holding stubs to the remote object. Next time when the client invokes the remote method using this stub, client will receive a "connection refused exception" from the server because the remote object is already unexported. Let's say if the RMI server is started again (remote object is exported and registered with registry service), the client once again obtains the stub to the remote object from the registry service instead of using earlier stale stub. (This time remote object may have been exported on different port, so the port details in the old stub may not be valid any more).
At any point of time there can be more than one established TCP connection with the RMI client. This may be the temporary condition; RMI client's transport layer automatically closes these connections if it does not receive any remote method invocation requests with in a pre-determined interval of time (default: 2 min). You can always find out RMI client's host in a given remote invocation by using getClientHost(), but how can you semantically define a "disconnected client in a rmi server" in your application context ? You can always force all the clients to fetch the stub again in future remote method invocations by unexporting the remote object in RMI server. I hope this information helps ...
-- Srinath Mandalapu

Copy file from client PC to server in a web deployed application

I have developed one application using Oracle forms 6i, which is deployed on the web server.
I run this application from a client PC in Internet Explorer using internet.
I want to copy one file from the client PC to the web server.
I have done following things
- Created a shared folder on the server and given full rights to every one on this folder
- I use 'net use' command in my program to connect to this shared folder
- I use copy command to copy file from local client pc to server. This copy command I am executing using host command of my programming (PL/SQL: eg. host('copy abc.txt \\server\share\') )
But this does not work.
When I do the same thing in command window, it works.
(ie. Start-Run cmd to open command window and then type the above copy command)
Can you please tell me, how to copy a file from client PC to the sever in Web deployed application?
Thanks

I downloaded D2KWUtil from the link suggested by you. It has very nice example demo form. But the documentation provided says following
Using D2KWUTIL in Web Deployed Applications
The use of this library is not supported with Web deployed applications.
In a web deployment scenario not all functions within D2KWUTIL will work. Any function that interacts with the User Interface (such as those in the WIN_API_DIALOG package) will fail.
Any interaction with the O/S by other functions will all be executed on the NT server and will act within, or return information pertinant to, the environment on that machine. For instance GET_COMPUTER_NAME will return the Server’s name, not the name of the computer that the Client browser is running on. Likewise COPY_FILE will copy files in the Forms Server not on the Client.
Functions such as those in WIN_API_BITOP will continue to work without change.
so this will not work in web deployed application.
Any other suggestion?
Thanks

How can i load file into database from client-side to server-side

i want to upload file from client-side to server-side, i use the following code to load blob into database.
if the file is in the server-side, it can work, but if it in the client-side, it said that the system cannot find the file. i think it only will search the file is in the server-side or not, it will not search the client-side.
how can i solve it without upload the file to the server first, then load it into database??
try
ResultSet rset = null;
PreparedStatement pstmt =
conn.prepareStatement ("insert into docs values (? , EMPTY_BLOB())");
pstmt.setInt (1, docId);
pstmt.execute ();
// Open the destination blob:
pstmt.setInt (1, docId);
rset = pstmt.executeQuery (
"SELECT content FROM docs WHERE id = ? FOR UPDATE");
BLOB dest_lob = null;
if (rset.next()) {
dest_lob = ((OracleResultSet)rset).getBLOB (1);
// Declare a file handler for the input file
File binaryFile = new File (fileName);
FileInputStream istream = new FileInputStream (binaryFile);
// Create an OutputStram object to write the BLOB as a stream
OutputStream ostream = dest_lob.getBinaryOutputStream();
// Create a tempory buffer
byte[] buffer = new byte[1024];
int length = 0;
// Use the read() method to read the file to the byte
// array buffer, then use the write() method to write it to
// the BLOB.
while ((length = istream.read(buffer)) != -1)
ostream.write(buffer, 0, length);
pstmt.close();
// Close all streams and file handles:
istream.close();
ostream.flush();
ostream.close();
//dest_lob.close();
// Commit the transaction:
conn.commit();
conn.close();
} catch (SQLException e) {

Hi,
Without some more details of the configuration, its difficult to know
what's happening here. For example, what do you mean by client side
and server side, and where are you running the upload Java application?
If you always run the application on the database server system, but can't
open the file on a different machine, then it sounds like a file protection
problem that isn't really connected with the database at all. That is to
say, if the new FileInputStream (binaryFile) statement fails, then its not
really a database problem, but a file protection issue. On the other hand,
I can't explain what's happening if you run the program on the same machine
as the document file (client machine), but you can't write the data to the
server, assuming the JDBC connection string is set correctly to connect to
the appropriate database server.
If you can provide some more information, we'll try to help.
Simon
null

Is it possible to lock the keyboard of a client from a server using java

please explain wheterit is possible to lock the keyboard of a client from a server using java

You want to process code on one machine, and thereby lock the keyboard on another machine? No, that's not possible. It is extremely far from possible.
Of course, if the client is running software with security holes in it you might hack into it and crash the thing. This will lock up the keyboard pretty good. I hope that's not what you want ...
Or are you talking about a setup where you already have code running on the client, and some sort of communication between client and server? In that case what you need to know is whether it is possible to lock the keyboard at all. Once you have figured that out, it is trivial to add the communication code to have the server software tell the client software to lock the keyboard.
So what do you mean with "lock the keyboard"? It's pretty easy to remove/disable all keyboard related listeners in your own application. It's a lot harder (and AFAIK impossible with pure java) to disable alt-tabbing out of the application. And impossible, except from exploiting security holes, to lock the ctrl-alt-delete-combination on windows machine.

ORA-03113 while connect from 8i client to 7 Server

Hi,
I have a Oracle 7.3.3 Server running on a SCO OpenSever 5.0.5 and a Oracle 8i Client 8.1.6.0.0 on a RedHat Linux 6.2.
When I try to connect from the client to the server by issue command "sqlplus user@test", it responses me "Error while trying to retrieve text for error ORA-03113". But when I run "netasst" to test the connection, it says the connection was sucessful.
Can anyone help? Here are my configuration files:
Listener.ora on Server side:
LISTENER=
(ADDRESS LIST=
(ADDRESS =
(COMMUNITY=TCP.world)
(PROTOCOL=TCP)
(Host=10.128.64.52)
(Port=1526)
STARTUP_WAIT_TIME_LISTENER = 0
CONNECT_TIMEOUT_LISTENER = 10
TRACE_LEVEL_LISTENER = OFF
SID_LIST_LISTENER =
(SID_LIST=
(SID_DESC =
(SID_NAME = test)
(ORACLE_HOME = /usr/app/oracle/product/7.3.3
(PRESPAWN_MAX=10)
tnsnames.ora on client side:
TEST.888.COM
(DESCRIPTION =
(ADDRESS_LISTS =
(ADDRESS =
(PROTOCOL = TCP)
(HOST = 10.128.64.52)
(PORT = 1526)
(CONNECT_DATA =
(SID = test)
)

Hi,
I don't have a 64 bit instance, but maybe another test will be usefull, try to get a connection with sqlplus on the server but via sqlnet like "user/passwd@tnsentry" I think if that also is not possible it is not the 64 bit issue but more that the listener itself coundn't etsablish a db connection, be aware tnsping is only testing if the listener is running and do not check if the listener is able to connect to the db.
Hope this helps a little to find your real proble ;-), Olaf

Problem with program hanging randomly on certain commands from win 7 pro client to SB Server

Having a problem with program hanging randomly on certain commands from Win-7 Pro Client to SB Server Both 64-Bit
Five other slower XP-Pro 32 Bit systems though they are older and slower systems do not seem to hang as readily if at all.
It has been very frustrating as the Client-System, SB-Server and Program should work w/o any hitches, but this seems to work fine @ times and then hang randomly.
Would appreciate any and all suggestions in assisting.... JimBAgde-MSS

You can try this, as I have had similar problems with another MS Access .MDB file and slow access before. This fixed my problem for me. On the slow computer, make sure the program is set to see the .mdb file via UNC path, not a mapped drive letter. ex.
USE: \\yourserver\shared\dental\file.mdb
DO NOT: S:\\shared\dental\file.mdb
hope this helps

What's the difference between client combo and server combo? Also, what would happen if I install both?

what's the difference between client combo and server combo? Also, what would happen if I install both?

One is for the base version of the Mac OS, the other is for the Server version. You can only install the one that matches your system.

What is the recommended number of clients per Mac server? Also what are some recommended specs when purchasing an Apple machine that will have Mac OS X server installed?

What is the recommended number of clients per Mac server? Also what are some recommended specs when purchasing an Apple machine that will have Mac OS X server installed? We have around 300 clients that need to be enroled on the Mac server. I want to know what is the recommended amount of clients a Mac server should contain. Also what are some recommended specs to make sure the server will flawlessly?

Hello cpreasbeck,
Thank you for contacting Apple Support Communities.
I was able to find the following transition guide for Xserve that provides some workload guidance to determine performance when planning a server deployment.
Transition Guide Xserve
http://images.apple.com/xserve/pdf/L422277A_Xserve_Guide.pdf
On page 9, Performance there is a chart that provides maximum numbers of connected users for various activities such as file sharing, mail, web, calendar, directory services and Time Machine and the CPU used as a server (Xserve, Mac Pro, Mac Mini). This information is a bit dated as the referenced software is Snow Leopard Server (OS X 10.6), and the hardware is older also, but it should give you a general idea of what you might need to look for.
Regards,
Jeff D.

How to know oracle client or oracle server installed in m/c ?

Hi all,
Could any one tell me how to know whether oracle 10.1 s/w installed in my machine is client version or server . Is there any easy method..??
Thanks in advance.

Hi,
Check the database / dbs folder exist in the $ORACLE_HOME if yes then SERVER else CLIENT.
PS: Above is not a standard method, i am telling based on DIRECTORY.
Regards,
Taj

Can i run UDP client and UDP server socket program in the same pc ?

hi all.
when i execute my UDP client socket program and UDP server socket program in the same pc ,
It's will shown the error msg :
"Address already in use: Cannot bind"
but if i run UDP client socket program in the remote pc and UDP server socket program run in local pc , it's will success.
anybody know what's going on ?
any help will be appreciated !

bobby92 wrote:
i have use a specified port for UDP server side , and for client define the server port "DatagramSocket clientSocket= new DatagramSocket(Server_PORT);"Why? The port you provide here is not the target port. It's the local port you listen on. That's only necessary when you want other hosts to connect to you (i.e. when you're acting as a server).
The server should be using that constructor, the client should not be specifying a port.
so when i start the udp server code to listen in local pc , then when i start UDP client code in local pc ,i will get the error "Address already in use: Cannot bind"Because your client tries to bind to the same port that the server already bound to.

Socket Communication between java client and c++ server

HI,
In my project,I want to do the following:
1.Sending datas from client to server.
2.Getting the response from server to client.
I written the client in java.but the server is in c++.
Is it possible to communicate with the server using java codings itself?
Im able to send the data from my java client to the server.
but unable to get back the datas from server to client.
Can anyone tell me how to do this?
thanks a lot

hi
thanks for ur reply.
I didnt get any error msg while getting the back the datas.
Actually i divided my application into two parts.
My application will act as both server and client.
server ll get the browser request and send to the client and the client will send that data to the c++ server.
Im able to do that.and unable to get the data from server.
Didnt get any error.
can u tell me how to make an application to act as both client and server.
I think im wrong in that part.
thanks a lot

Conect clients to public server!

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