Why Client Cannot Connect Remotely With External IP
Apr 1, 2012
I have a server and a client working with sockets. I run the server at my laptop, sending its internal IP to my Hotmail account and I run my client at my desktop. I enter the internal IP and connect fine! But when I tried to connect with my cousin's PC, which is not in my network, I entered its external IP and the client couldn't connect.
Here is the code for the Server (consists of 2 forms):
Form 1 (Server):
Imports System.Net
Imports System.Net.Sockets
Imports System.IO
Imports Microsoft.Win32
Imports System.Net.Mail
[Code] .....
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Jan 6, 2009
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Sep 28, 2010
How to connect to MS SQL Server 2008 remotely? I have the following code but I can only connect to the server under the local machine network.
[Code]...
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Is possible for vb.net to create an oledbconnection based on a url?
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Feb 4, 2010
I am trying to remotely connect to servers on a network. However, an exception occurs and I can never connect. The code I am using to connect to the servers does work because I have had someone else test it. The exception is shown below. Is this a setting with VB or with my computer?
System.Runtime.InteropServices.COMException was caught
ErrorCode=-2147220308
HelpLink="C:Program FilesPIPCPISDK..Helppisdk.chm"
Message="The specified time is invalid "
[code]....
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Sep 9, 2010
from vb.net code i try to remotely connect to mysql server :
Dim conn As New MySqlConnection
Dim comand As New MySqlCommand
Dim myconnstring As String = "server=192.168.1.100" _
[Code]....
I get Timeout I/O operation. With mysql front i can connect without problem.I closed windows firewall.
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Apr 9, 2012
I started to setup a Server and a Client for personal purpose. When I try to connect the Server by a computer inside a shared network, with local IPs, works but when I try to connect an external IP, doesn't work.[code]
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May 25, 2010
I'm trying to connect to an external device using a serial port. I found a couple of tutorials with demo code and tried these. Unfortunately they all return the same gibberish unreadible result.[code]I'm sure my port settings are correct (I have the communication protocol of the device.)
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May 28, 2012
Which should be selected?
Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;
or
Data Source=190.190.200.100;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;
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Jun 8, 2010
Im a beginner at vb.net, and just wanna ask if it is possible to make a vb.net app/client app that can connect to a database on an online web server???The app is locally on the client computer and the database is uploaded on the web server/host together with its website.
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Aug 10, 2011
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I have written a vb.net app that runs in multiple hospital networks. THe vb client periodically contacts a off-site webservice for datatransfers.The issue I am getting at a particular hospital is that the client PC's are not on the hospital's domain. So they are sort of off the radar. They do use the hospital network for internet access. When the user opens a web browser they are asked for domain
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Oct 24, 2008
I have this code below for a client module, to allow the client to connect to multiple servers, though a IP list. The problem is that it is connecting ok to the servers, and it is sending messages to servers, but is not receiving messages FROM servers.
[Code]...
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Jun 25, 2010
I am trying to open a socket server, I have the code below but my problem is that when I try to connect as a client to the server using the command line (telnet ip port), i only get to type 1 letter and that's it, i can't do anything else, how can I make it so that the client can send anything until they hit or type EXIT?
Here is my code:
Imports System.Net.Sockets
Imports System.Text
Imports System.Threading
[Code].....
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Mar 9, 2010
I have installed Oracle 10g in one of my office's computer. I want to keep this as database server. I am developing a .net project which will communicate with the database server from client machine and from the server machine. I success to communicate with oracle from server machine but not from client machine using the .net project. The connection code is as follows:
Public OraConn As ADODB.Connection
OraConn = New ADODB.Connection
OraConn.Provider = "OraOLEDB.Oracle"
[code].....
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Feb 15, 2012
I've been Searching the Net for hours now, and i can't really seem to find anything clear and straight to the point.
I need to create a Server/Client application using VB.net 2008, it's actually my first time to have a database on another computer. So I first searched the internet for the things i need to make this software.
[code]...
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May 10, 2012
I am using Peter Huber's POP3 client to connect to gmail and download messages.The inboxes being accessed are transactional inboxes used only for code-access. That is, a message comes in with a order file attached, code will process it and then delete the message. One stipulation of the code though was a DEBUG flag, which if set would prevent the code from deleting the message so that you can run the program again later without the debug flag and reprocess the message. So, in my code I have If Not Arguments.Debug Then pop.DeleteEmail(eid)
This works fine. Problem is, even when not deleting the message, running the program a second time will not re-retrieve the message, even though if I login to gmail and look at the inbox, it is still there. The only way I can get the program to see the message again is to forward the message back to the same inbox. But in Peter's code I do not see anywhere where he is keeping track of seen messages between sessions.
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Aug 2, 2010
i made a program that uses sockets to connect the server to client but there is a problem with it when i try it on this ip"127.0.0.1"wich is not a real ip just a loopback to my computer it works just fine when i use my local ip it works as well when i use my main ip from http:whatsmyip.org it doesnt work at all i dont know why it doesnt say an error or an exception but its not connecting so i gave the server to a friend of mine i tried using both his real ip and his local but still not working i dont know why?i mean i am 100% sure of my code...
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How to connect to oracle (Linux) without installation of Oracle Client or TOAD .....?
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connect with same type 2 servers on different destination from single client
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i Use "Imports System.Data.OracleClient .. Private conn As New OracleConnection()" to connect to my Oracle database..but when i put my program to another PC I need install Oracle Client on it...is there some other way how to connect to Oracle DB without installing oracle client to client PC?? (Database is on Server an program is on client´s PCs)
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My application using Ms Access DB. when i connect to DB from client machine it show error at conn.open. the error was "you need permission to view its data".If I login to the server, it works perfectly.
[code]...
Is there any way to access the DB from code without server login?
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[Code]...
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