Writing A Telnet Client Using System.net.tcpclient
Aug 18, 2010This isn't working for me when I connect to my solaris box
The server is sending back
Imports System.Net
Imports System.Net.Sockets
Imports System.Text
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Send And Receive Information From A Client Via Telnet Applciation
Apr 1, 2011An currently writing a vb.net application to send and receive information from a client via telnet. Am using System.net.Sockets to do this. I can send data great and get data back is ok. So the Problem is in the command window after I telnet in to the server application, when i press the delete key the cursor moves back a character and doesn't delete the character, just over writes it and when I read the bytes in I get the deleted character and the ascii value for the delete key and then the replacement character. I have seen another telnet application that shows the deletion of characters in the Command window.
View 1 RepliesWriting 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 Create A Client / Server Chatroom Using TCPClient In Visual Basic
Jan 6, 2010However I have hit a massive brick wall with my program. My program that I'm trying (can't emphasis this word the importance of that word) to create a Client/Server chatroom using TCPClient in Visual Basic. So far I can get my client to speak to my server. However, i'm trying to get the returned data to display in a listbox which never happened, i then tried a label, which again never happened then a text box which I'm sure you can figure out how that went! I'm not great at networking programmers nor am I not bad I'm terrible but duty calls when it comes to projects.
The code I currently have was mostly taken from the net but when I have the program fully work and I understand how the software works I intend to heavily modify for it to suit the needs of what I need to achieve. where I can get my client to display the data from the server that I have already sent to the server (which displays successfully within the server).
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.net - Difference Between New TcpClient(MachineName, Port) And New TcpClient(new IPEndpoint?
Mar 31, 2011I have a .Net program that has to run on a cluster of server 2008. To find out the right IP I resolve the dns by GetHostEntry(VarDefinedInfConfig).AddressList(0)
but when I am converting my old code (this code picks the wrong IP) dns.GetHostName().AddressList(0) => this returns a virtual IP and not the right one.So I changed my TcpListener to (dns is parameter from config)Dim listener As TcpListener = New TcpListener(New IPEndPoint(Net.Dns.GetHostEntry(dns).AddressList(0), 8001))
listener.Start()
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Avoid System.Runtime.InteropServices.COMException By Detecting A System Folder Before Writing A File?
Nov 26, 2010I have a vb .net application where the user can choose a directory into which an excel file is written. If the user selects a system directory (yes, my users do this, don't ask me why) then a System.Runtime.InteropServices.COMException is thrown at runtime. I am handling this exception telling the user to please select another directory.
View 1 RepliesBuild System Inventory To Server - Client System
Jun 3, 2011how to build system inventory that multiuser..1 server and 1 more is client using lan connection..i dont no keyword to search in google..
View 3 RepliesVS 2008 Turn Winsock Chat System Into A Multi-client Chat System?
Mar 25, 2011i have made a client and server chat system in VB 2008 with winsock,it's a one to one chat and works perfect fine, but do anyone know how to turn it into a multi-client chat system? Code in below: Here is the code for the server:
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System.UnauthorizedAccessException When Writing To Registry Key?
Nov 17, 2009My application needs to change the default signature of outlook and I need to change the value of a registry key for this. But I get a error that I probaly don't have enough permissions. Strange thing is, if I change it manually it doesn't complain.
Error:System.UnauthorizedAccessException : Cannot write to the registry key.
Happens at the 2nd line:
vb
Dim subkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("SoftwareMicrosoftWindows NTCurrentVersionWindows Messaging SubsystemProfilesOutlook9375CFF0413111d3B88A00104B2A6676�0000002") subkey.SetValue("New Signature", Text.Encoding.Unicode.GetBytes("Eigen"), Microsoft.Win32.RegistryValueKind.Binary)
System.IO.File.WriteAllText Opens After Writing?
Jul 27, 2011Basically I am saving text to 2 seperate ini files, also saving the checkbox.checked value so my form can skip the login and auto start. My only problem is when a user saves the information to the INI files after writing them they automatically open up the INI files for display. When the form loads it automatically fills in the fields and if the checkbox is active it checks all the correct details then starts, only problem is it loads the checkbox1.checked ini file then starts the main menu. How can I skip this? and make it not show the ini files everytime they are called upon?
Dim aINIpath As String
aINIpath = "User.ini"
If File.Exists(aINIpath) = False Then
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Application Not Running On Client System
Jun 21, 2010I have developed a vb.net database application(desktop application with sql 2005).I managed to create setup files(.msi) which is running on my pc.but when i install this application on my client system the application is running but all database operations fails.
View 6 RepliesInstall On Client System To Run .net Application?
Jun 22, 2010Is it necessary to install .net on client system to run .net application?
View 1 RepliesServer And Client Login System
Apr 30, 2010I am trying to make an Instant messaging program for work purposes, and have decided on creating a server and client based system, but I dont have much experience with the namespace system.net.sockets. could anyone possibly link me to some source code or give an explanation of how this namespace operates and put me on the right path?
View 2 RepliesShutting Down/restart Client System?
Jul 31, 2009pls. I am currently developing a project to monitor client system from the server using Visual Basic 6. my question is How can i list the entire client on the network and possible track each actions on every system and possible shutdown/restart the client remotely from the server
View 3 Replies.net - Page Cannot Display Error On Client System?
Nov 25, 2010I'm using windows server 2008 & IIS 7.0 to deploy the my vb.net 3.5 application. I'm successfully able to run the URL on my server.Same URL having IP address & port number configured is not working on client system.
It is showing IE default error message as "page cannot display"
Download The File Into The Server To Client System?
Feb 26, 2009How I Can Download The File Into The Server To Client System In Vb.Net Appliction
View 1 RepliesHow To Make A Server / Client Billing System
Dec 21, 2010anyone can teach me how to make billing system which is server - client.i will put the sql database to one pc then clients - the gui system.i want to run may system from other pc then connect to sql database which in another pc..
View 1 RepliesInstall A .NET Windows Service - This Is Not Available In The Client's System?
Feb 8, 2006I have written a VB.NET windows service application. I installed it in my system using the Installutil.exe. But this is not available in the client's system because the .NET is not installed in that system.Is there any way to install the .NET windows service application without the Installutil ?
View 4 RepliesSystem.Net.Sockets Namespace - Use For A Chat Client?
May 31, 2009How would I use this for a chat client? I'm not sure where to even start and the internet is helping me find much about it.
View 4 RepliesCommunicate To Telnet In Program?
Jan 27, 2010How to send commands to a telnet session and then read the output from the telnet session?
I can easily create a Telnet session using something like this[code]...
VS 2008 Automated Telnet?
Oct 28, 2009I'm new to VB and i'm using VS 2008, i just wanted to know if there's a set of instructions you can provide me that can enable me to auto login when you telnet on a node. That is when you telnet an ip address of that particular node it will automatically log on the system with your username and password already inserted in the instruction. So it wont have to prompt a screen saying insert username or password
View 1 Replies'System.StackOverflowException' When Writing Data To SerialPort At Higher Baudrates?
Nov 24, 2010I am writing a serial application using VB .net Framework V4 , where I use a background worker to Read a file and send it to a serial port using SerialPort1.writeLine method. The BackgroundWorker1.ProgressChanged Event handler sub Updates the Line Number to a TextLabel and adds each line sent to a RichTextBox using RichTextBox1.AppendText() method on main form (Form1).
The problem arises at 115200 Bauds (and higher),may be because now the text is updated real fast on the form an unhandled Exception in BackgroundWorker1.ProgressChanged Event handler sub occurs. Otherwise at lower baudrates ex: 9600,19200 etc. Application Runs Perfectly Fine.
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DB/Reporting :: System Data - SQL Client Permission Error
Oct 12, 2004When I am trying to connect to database from VB.net, I am getting error.
This is my code.
Public g_Conn As new SqlClient.SqlConnection
With g_Conn
.ConnectionString = "user id=sa ;data source= CCTSRV8; " & _
"persist security info=True; " & _
"initial catalog=pubs ;password=mrwizard"
.Open()
End With
I am getting system.data.sqlclient.sqlclientpermission error.
Deployment :: System.invalidOperation On Client Computer Install?
May 4, 2009I have converted a Windows Forms VS2003 application to VS2005 and then to VS2008. It includes a setup project for deploying on the client computer (the regular installer, not click once). It works fine when I run it on my computer, either in VS or if I install using the setup installer. But when I install it on the client computer and then try to run it, I immediately get a System.InvalidOperation exception. I put in debug code before my code but it fails before it gets to any of my code. Both computers are XP. The client comptuter actually has VS2003, though it is not used.
I have tried it with either the 2.0 framework or the 3.5 framework (and included those as prerequisities) but neither makes a difference (and I did set that in the Launch conditions, as well as in the Advanced Compile Options). The application uses CrytalReports for VS.
I don't think I can run JIT debugging on the user computer due to permission issues. Are there any other debugging things I can try to narrow this down or has anyone encountered this.
Install OracleClient In The Client System For Running Application?
Mar 4, 2010I have developed a windows application which connects to Oracle Database and upload and retrieve data (using System.Data.OracleClient). It is working fine in my developement system. When I build a setup and deploy in another system, it is giving error that Oracle Client is missing.
Do I have to install Oracle Client in the client system to run my application?
(When I visit Oracle site for Oracle Client, it is asking me to download a 200 MB file)
Is there any other way to do this with out installing Oracle Client in the client system?
Communications :: Using Telnet To Read A Sensor
Jul 28, 2009I am using Telnet in VB to read a temperature and RH sensor. I don't know that the data is the exact same length every time. I have pasted the code below. This code does get the data back. I have also pasted the unparsed and parsed data as well.... Sometimes I get more or less data than the time before and I think this is because I am not reading the entire buffer. How can I make this code run a little better so that I can get the proper data every time? Below the code is a sample of several readings. You can see how I get bad data periodically.
Unparsed
" 24.4155 45.2235 11.7921 200.9005 45.2372 45.2235 -42.0242"
Parsed (replaced " " with , and then " " with ,)
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Send Commands To The Telnet Session Via Vb?
Dec 14, 2009i'm trieing to configure a mp3 recorder via telnet and visual basic.how can i send commands to the telnet session via vb?I can make connection with it via telnet and ip adress , but after that i wil send the command for login( login=hdr1) ANd with another butten for example (transport=play)How can i do that?
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VS 2010 Sending A Command To Telnet?
Apr 14, 2010I have wrote a nice little app in VB.Net to connect to an IP device via telnet and send a command, then write the reply to this command into a text file.I have everything working appart from the command.I need to send "Ctrl+a I2100" so if I was doing it manually in a dos box with telnet I would connect, then hold down Ctrl key and a then release, then type I2100 How do I do the Ctrl+a bit in VB. The line of code I have at the moment, is
client.SendCommand("Ctrl testing")
Now this obviously sends the word Ctrl testing to the telnet device.
How To Install Application Project Into A Client System With Sqlserver Database
May 3, 2012i am doing school software projects in windows application. now i want to install. this project to my client place. i can able to convert my application in to EXE using setup project. The problem for me is the database. i am using sqlserver 2005. i don't how to install my database and table into the client computer. is there any way to copy the database. if anyone have any idea about how to install my database i have create for that application into client computer.
View 1 RepliesTest Telnet Communication On Remote Computer Using .net?
Feb 2, 2012I have a central server and I need to write a bit of vb.net which will see if I can telnet to a specified server on a specified port.Is there anyway this can be done in VB.net? I thought about sending command prompts to the remote server to execute telnet, then output the logs of netsh and read those and send the information back to the central server for review.
Its a very messy way of doing it, so I was just wondering if there was an easier way