Retrieve Mac Address Of Server From Client?
Sep 14, 2009I want to retrieve Mac Address of server from the client system
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Chat Client To Client Without Server Just Use IP Address For It?
Apr 19, 2012Chat Client to Client Without Server Just Use IP Address For it?
View 1 RepliesVS 2008 : Use The DHCP API To Retrieve A Computer's MAC Address When Given The IP Address?
Nov 27, 2009I'm trying to use the DHCP API (using the references on pinvoke.net) to retrieve a computer's MAC address when given the IP address but I can't get the code to work. I've run all the C# code on pinvoke.net through the C#-to-VB converter but I'm stuck now.
Here's what I have so far. The value of res is always 5 (should be 0). Thing is, I can't find any documentation on what the return codes mean
vb
Private Sub GetMACDim client As String = "1.1.1.1" Dim server As String = "0.0.0.0" Dim si As New NativeMethods.DHCP_SEARCH_INFO si.SearchType = NativeMethods.DHCP_SEARCH_INFO_TYPE.DhcpClientIpAddress si.ClientIpAddress = Convert.ToUInt32(StringIPAddressToUint32(client)) Dim res As UInteger Dim oInfo As IntPtr
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VS 2008 TCP Server / Client - Client To Send The Server 4 Numbers - Depending On The User's Choice
May 9, 2009how to create a client/server... But I couldn't... I don't want anything fancy. Just want the client to send the server 4 numbers, depending on the user's choice; after that, the server would turn off the pc, restart it, etc. It all depends on the number received. Is there a rather "simple" way to do it? If it's not to much trouble you could use Atheist's example. (Btw I don't understand the code and, yes, I've checked on [URL])
View 9 RepliesVS 2010 : Send Data From Client To Server (encrypted) And The String Sent From The Client Is Not The Same As Received From The Server?
Jun 27, 2011Hey guys, I am trying to send data from client to server (encrypted) and the string sent from the client is not the same as recieved from the server. I've been killing my brain for hours to get this to work but I cant manage. Im converting everything to Base64 string.
Client:
Public Sub SendMessage(ByVal msg As String)
Try
SyncLock myclient.GetStream
sw = New IO.StreamWriter(myclient.GetStream)
[code]....
Client-Server-Client Multithreading - Instant Message Another Client
Jun 21, 2010We are creating a Who wants to be a millionaire style game in VB. Our server is pulling information such as questions and answers from a Access Database and sending them to the contestants (Clients). All transfer of information is directly from the server to each client. One of the "Life Lines" we want to use is "Ask a friend", where one client is able to Instant message another client for a short time to get help on the question.
[Code]...
Create Client-server App, In Which Client Can View Files On Server?
Nov 15, 2011basically i just want client to say "C: emp" ENTER
then, server must reply with all its files in c: emp
Communications :: Client-server Communication Program - Click On CmdListen In The Server Form And CmdConnect In The Client Form
Jul 23, 2008The problem I have is: When I click on cmdListen in the server form and cmdConnect in the client form,both programs won't respond and they crash for some reason I don't know.
Client source code:
Code:
Imports System.Net.Sockets
Imports System.Text
Public Class Form1
[CODE]...
Code:
Imports System.Net.Sockets
Imports System.Text
Public Class Form1
[CODE]...
Server/Client - Basic Tcp Server/client Application
Mar 30, 2009I've basically made a basic tcp server/client application. The thing is that I'm behind a router and so will be the other people that use my clients. I've had to use port-forwarding or the software "rinetd"to run quite a few applications online.
Let me explain: I'm on a lan network that connects to the internet. Whenever I want to host a server - for instance a basic ftp or http server. If I give my external IP to anyone, they won't be able to access my server. Even if I portforward, it doesnt work. I have to use rinetd here. For other applications, portforwarding works. I'm not sure how these things work at all.
Anyway, my issue now is that I have created this server/client application. I'm having serious doubts that if I run the server, I'll have to either a) portforward or use rinetd to get people to connect to my server. IF I need to portforward, that's fine. However, using rinetd would really suck... My 2nd concern is as follows: IF the person running the client is in a similar situation as me (i.e he's on a lan that has a router which connects to the net), will he have to portforward or use rinetd as well? If he portforwards that's fine. But I don't think I could get people to use rinetd.... Also, if there are more than 1 person on a lan trying to connect to my server, there is a big problem when they try to portforward: they will only be able to allocate one of their internal ip to that port, and the others won't be able to connect, right? How does this work? I mean, I use many softwares like msn/skype/(some games)/firefox that do not need portforwarding/rinetd. Yet they work. My housemates(other people on the lan) use the same softwares, and it works fine. There's no clash/probs watsoever How come these run fine?
Anyway, back to my issues. Given I have no knowledge about how the above work, I was wondering whether there was a way to host a vb .net server application on an external website (external to my house) so that I might *avoid* the above mentioned problems, and to what extent that would be a sound solution.
Writing A Program With 1 Client And Server Where Client Side Creates A Text File
Dec 1, 2008I have been reading through Atheists posts in regards to client-server and TCP client/server connection's. But how do i go about writing a program with 1 client and server where the client side creates a text file.Once the server sees there is a text file it connects and downloads it to itself or the client pushes the text file to the server.Once on the server i will read the text file and put its info into a sql db.
View 14 RepliesVS 2008 Chat Server/client - After The Client Clicks Disconnect Or Closes By Task Manager, Looses Connection
Aug 18, 2009Im using the code from [URL] as a starter, most of the code is the same. the chat system works fine but on the client a added a disconnect button "clientSocket.Close()" and as soon as i click that i get errors, on the client, this is the code...
Private Sub getMessage()
For infiniteCounter = 1 To 2
[CODE]...
And this line...
serverStream.Read(inStream, 0, buffSize)
gives me "Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall."
Now im talking the server, after the client clicks disconnect or closes by task manager, looses connection, etc the server crashes and gives me.
Get Client Ip Address?
Mar 1, 2009i am actually developing an application which runs on the server .The computer is configured as a Dial in Server and allows clients to connect to it via a regular dial up connection.In The application i need to determine the ip address of the client who is connected to me at that instance.I have tried using the following code
Dim hostname As IPHostEntry = Dns.GetHostByName(TextBox1.Text)
Dim ip As IPAddress() = hostname.AddressList()
TextBox1.Text = ip(0).ToString()
but it gives me some socket creation error when i type in the name of the client in the text box . Is there any other way to determine the clients ip address who is connected to me at that moment. Note: i am using the Modem for connections not the LAN adapter.
.net - Retrieve Ip Address Through Lan?
May 18, 2011How I can retrieve the IP address for a client when this client is connected to the server through Lan network and show it as a string in textbox?
[Code]...
.net - Get MAC Address Of Client Machine In C#?
Jan 7, 2010How to get MAC address of client machine in c# and vb.net
View 3 RepliesRetrieve An IP Address In VB Application?
Jan 17, 2009Im building a payment system in VB (2008) using Windows Forms (Applications). Im trying to find out how it is possible to get the IP address of my machine and display it to a text label. I did a bit of surfing and cant find a solution, i tried this code below, but doesnt like the word "Request", so i tried adding all the imports web, data, net, etc, but cant get it to work.
Dim StoreIP As String
StoreIP = Request.UserHostAddress
Me.TextBoxIP.Text = StoreIP
Retrieve Router WAN (outside) IP Address?
Sep 23, 2007I am trying to retrieve the WAN side IP address of my router within a windows form. I am using VS 2005, programming in VB.net, developing a windows application (not a web app).
View 3 RepliesRetrieve The Clients IP Address?
Jul 1, 2011How can I retrieve the clients IP address that in use of my application? Is there's a code that retrieves a value from clients computer running application?
View 4 RepliesRetrieve The Ip Address Of The User In Asp.net?
Feb 25, 2009how can i retrieve the ip address of the user in asp.net and/or in javascript?
View 5 RepliesRetrieve Primary Adapter's IP Address?
Feb 2, 2012The following code will list all IP addresses of each adapter on your system:
Imports System.Net
For Each IPAddress In Dns.GetHostAddresses(Dns.GetHostName)
Debug.Print(IPAddress.ToString)
Next IPAddress
How can determine which is my primary Windows adapter? ie: Running the above gives me:
fe80::c78:d30:ce6c:67cb%10
fe80::f823:5811:6404:f6d3%21
fe80::94bc:17f:5cd9:4a1%26
[code].....
My address from my router (primary address) is 192.168.1.25, or also it would be Dns.GetHostAddress(Dns.GetHostName).GetValue(4) which is the 5th element in the array If I'm obtaining a users local IP address on various machines with various amounts of network adapters, my program will break. I must know the IP of the primary Windows Ethernet/Wireless adapter in use.
Retrieve Primary Adapter's Gateway Address?
Feb 6, 2012I managed to obtain the primary adapter's IP address here: [URL]
But now I need that adapters gateway, ie: 192.168.1.1
Retrieving Data - Program To Retrieve A Students First Name And Address
Nov 16, 2009I am developing a program that will manage students details. I have bound the program to an access database but i want the program to be able to retrieve a students first name and address when i enter the students first name in a text box and clicking a button.
I tried this code below but it didnt work.
Private Sub btnGetData_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetData.Click
dt = StudentDataSet.Tables("Mystudent")
[CODE]...
VS 2008 Multi-User Chat Program (Server & Client) With Main Server?
Aug 10, 2009Multi-User Chat Program (Server & Client) with Main Server?
View 1 RepliesClinet/server The Server Broadcast Media Files To Client I Used Tcp/ip Protocol?
May 13, 2011i have 2 application clinet/server the server broadcast media files to client i used tcp/ip protocol the server code is work good but i have a problem in client code i need ineed someone to correct the code .iwll show where the error is in the code note: i call the class in the main form dim a as recive in the starter of the main form class to be gloable .
[Code]...
SQL Server 2008 Configuration For Client Server (Windows Form) Application
Apr 6, 2012Case : I'm creating an application (desktop application) with VB.NET (actually windows form), and using SQL Server Express 2008 for its database.
[Code]...
How To Load A File From Server By Server IP Address
Dec 1, 2008desktop application I need to refer and load some files to manipulate (Like dBase III .dbf files) or to show (ESRI .shp files). As the number of my files changes, I need to have these files on a server and then when I want to load them in my desktop application give the path on my server based on IP address and Port number
View 1 RepliesThe SMTP Server Requires A Secure Connection Or The Client Was Not Authenticated. The Server Response Was 5.5.1 Authentication Required
Nov 28, 2009This emailing code wont seem to work in my program. I get an exception "The SMTP server requires a secure connection or the client was not authenticated. The server response was 5.5.1 authentication required."
Imports System.Net.Mail
Public Class emailStudent
Private Sub sendEmailButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles sendEmailButton.Click
SendMail()
[code]....
Difference Between SQL Server Native Client And SQL Server DSN To Support SP Execution?
Jul 9, 2009I wrote a VB code to call a sp in sql server 2005, which returns a recordset as follows:Dim objRecordset As ADODB.Recordset Set objComm = New ADODB.Command
Set objRecordset = objComm.Execute If Not objRecordset.BOF And Not objRecordset.EOF Then
Set objRecordset = objRecordset.NextRecordset I need to continue to get next recordset since there are many select statements inside the sp which I need to get the data. The code works fine when I create the DSN using SQL Server but it does not work when using the connection string or SQL Server Native Client DSN. It either breaks at Set objRecordset = objComm.Execute ( connection string )or at If Not objRecordset.BOF And Not objRecordset.EOF Then(SQL native client )
I have worked on this for a couple of days now and could not figure it out.Is this a bug in SQL Native Client or something related to some configuration on the database side? IS there a way I can change the connection property to get this working using SQL native client or connection string?
Info: Multithreaded Server Socket Program Or Client/Server?
Oct 26, 2011I made a simple TCP server (I've found the example on the web) in VB to receive data from about 40 TCP clients.The clients are not synchronized but sends data about every 18 minutes; the problem is sometimes several clients sends data at the same moment, so I can't receive data.I also made a second program that reads the data (server program writes data on a file, read from the second program) scheduled.
My question is this: I've seen on the web examples about Multithreaded Server Socket Program, so I suppose this could manage my 40 clients (but now the clients are syncronized and send data at the same time in client mode) or is better get data (I have a central client that asks data to all 40 devices in server mode)?
Second question: can I make a single program where I run both TCP client and TCP server at the same time?
Retrieve Session Variable Client Side?
Jun 8, 2011Currently, in my web application I have a listbox that gets populated client side (via java script) with a set of ids -- we'll call this page 1. Server side, I am populating a variable with the ids and passing it through a query string to another page -- we'll call it page 2. Now, I have a previous button on page2 which allows me to go to page 1. I'm trying to figure out how to repopulate the listbox on page 1 with the values previously selected. I was thinking of just storing the set of ids in a session variable and using it client side to repopulate the list box. Can anyone advise on how to access a session variable client side?[code]...
View 1 RepliesClient Server Application - How To Make Clients On Sql Server
Sep 24, 2010How to make clients on sql server i mean when i will install my application on clients how i will connect it with sql server?
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