I have a server which has around 300+ users on it. Though the problem is that its coded in VB6, and if somebody has a bad ping, everybody has a bad ping. I need a tunneling server which will tunnel the incoming and outgoing connections and make there ping appear to be 0 in the server. Client to Server, Server to Client.
View 1 RepliesIs there a way I could block connections to an IP address (Incoming and Outgoing) in Visual C+/C#/C???
I have a different method, using the windows hosts file. I could make it redirect, but on the host file, could I make it launch a certain application when it blocks an IP. Like, launch a file called blocked.html that says "Webpage blocked" on it? [code]...
Is it possible to make a program similar to outlook express where I can send/receive emails , I already made one sending emails but I need to receive emails too
View 2 RepliesI have a tcp client and tcp server.How do I ping the server from the client, by specifying the ip and port of the server?
View 1 RepliesUsing VB.Net and SQL Server 2008 R2: I have recently had a database that using sp_who2 reflects a connection ".Net SqlClient Data Provider" is still active even though the .Net application has closed and disposed of all connections.
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Is it possible to filter the incoming and outgoing data on a COM port terminal... to distinguish it?
View 2 RepliesI was wondering, if there is a way to block incoming connections from specific ip adress that tries to connect to computer
I assume that it cant be via windows host files
I am working this little project where i need to ping some servers remotely. there's three of them. I need o ping them and per say while they're being pinged to have a command window open with the pinging process going to keep an eye untill it can ping successfully.And since this is for all three servers how do i create a program where it will have all three servers being pinged? [code]
View 6 RepliesI know that you can easily send a ping request and receive a boolean return type in .NET, using something like:
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im trying to do is ping a server and see if there is a response. If there is a response then i would like to set an integer to 1 if there is not a response set the integer to 0. I would also then like to gather any servers that had a response into a list box. I know how to build a list box just having trouble getting the code to set a variable if or if there isnt a response.
View 4 RepliesWhat I am looking to do is ping a server every 30 minutes to an hour or so and to send an email if the server is not pingable. [code]...
I am creating the project in Visual Studio 2010. All it does now is check if it can ping a server. I would like it to run this code every 30min.
I searched on google for these terms : "How to see all open connections in vb.net" and it should be for a server im running and it would be like to see witch users are connected (ip) and then if i type in the console -disconnect ip then the user will be disconnected from the server but is this technical posibble ?
View 4 RepliesI am currently working on an asp.net web page with a GridView displaying a table from a database.This GridView has 4 DropDownLists that will be used to filter the data shown on the GridView. When the page loads 4 Sub routines are run, each one connecting to the database with a select statement to fill the DropDownList with relevant filter headings.
Initially, I had one connection with a loop that populated all of the drop downs but these contained duplicates. I then split the filling of each DDL so that the select statements could contain DISTINCT. I would like (and am sure there is a way here) to be able to populate all of the DDLs with data from one connection.
Code for one connection:
Protected Sub FillDepDDL()
Dim conn As New SqlConnection()
conn.ConnectionString =
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The other 3 column names: FirstName > DDLFN, LastName > DDLLN, Wage > DDLWag.This is only a test DB and the princibles learned here will be applied to a larger live project.
I'm pretty new to VB.NET and connecting to SQL Server.What is considered best practice when building an app that needs to connect frequently to a SQL Server DB to fetch, write, delete and update records?Should a connection be opened at app startup (a connection at start is opened to validate the user) and left open for subsequent transactions or should a connection be opened, closed and disposed of each time a read/write to the DB is required?
View 3 RepliesI am trying to use the my.computer.network.ping method to check a server's ping. what I realize is that I need to open a socket. I do not know how to do that. I have a textbox with the website url.I have a label that will display ping.
View 2 Repliesbelow is my code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ProgressBar1.Value = 5
Dim strTo As String = setting.tosett.ToString[code].....
i want the program to ping the server before sending the mail; if server is available then send mail if not then message box with warning appears notifying user to check VPN connection and sending of mail is canceled.
Is there an easy way to just ping a server by IP or URL and return the minimum, maximum and average milliseconds? Actually the same results I get in CMD when using the ping command. Can't find any tutorial that describes it. So let's say I have a Textbox1 and a Button1 and a Label1 for the results. How can I do it?
View 1 RepliesI work as an IT Administrator and manage a few Servers, Routers, VPN Connections over a number if locations. What I am wanting to do is create a vb.net app that will go out and ping say every 2-5mins each of the servers, routers, that are listed and then shows beside the Hostname a Green Circle which means online and if its a Red Circle its offline, and the screen refreshes if their is a problem or a device / service comes back online.
Then if its offline email a particular email address showing the hostname of either the server or router and which location saying its offline. If possible to make it easier to change the devices to show possible have a txt file or something like that with the Hostname, IP Address, Location.
I have a java class that is used to for ssl connections to a web server. I have got some of it converted however there are serveral java libraries that i have been unable to figure out how to call or reference in vb.net. First off i'm not even sure if it's possible to reference them
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I have a .net window application created and I wanted to see if it's at all possible to place various file dependencies off the web server. e.g. is it possible to have the connection to the database be off a web server?
I also would like to see if it's possible to place one of the .dlls off the web and have code that points to it to load.
In our VB 2008 we are making a lot of connections to sql server 2005 databases. Is there a possibillity to check with a program or a tool of 2005, all connections are closed?
View 3 RepliesEvery time I execute my application and the app try to access the database I received an error message telling me that the user cannot login into the database. This is because the VS Server Explorer have the connection opened. What I need is that every time I debug (F5) my app the Server Explorer close the connection with the database so I do not have to stop the execution and manually close the connection. Is this is possible? Is there any way I can setup the debug or the Server Explorer to do this?
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I am developing project on cyber cafe using vb .net 2005 and winsock i don't know how to accept connections from multiple clients to a server having winsock control
View 2 Repliesa small question: what is the difference between sync and async connections in a tcp/ip client/server application?
View 1 RepliesHow to make clients on sql server i mean when i will install my application on clients how i will connect it with sql server?
View 6 RepliesI have been developing an async socket connection server and client program. I have been testing it, and noticed that if I connect to the server from my client and then disconnect. Upon reconnecting I am on a different port(local IP still). This is fine, however when I go to send a message, and the server trys to update all the clients, it eventually hits clients that do not exist anymore. I get the SocketException 10054, and upon connecting/disconnecting enough, it no longer works at all. My question is how do I clear out these no longer useful sockets from the server? I am doing currentsocket.Shutdown(SocketShutDown.Both); and then a currentsocket.Close(); after that. When a user disconnects.
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I have an application which connects to a database, retrieves a username from a user's table and matches it against the username retrieved with System.Security.Principal.WindowsIdentity.GetCurrent.Name.On my localhost, everything works fine. The database exists on the development server but the application lies on my localhost. All of my authorization and authentication techniques are running smoothly.However, when I publish my application to the development server, I'm faced with the following error.Cannot open database requested in login 'databaseName'. Login fails.Login failed for user 'DevelopmentServerNameASPNET'.
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I have an application in which i have a database .mdf file in directory which i use a connection string to give a path of to access it, which means without installing sql server i can access database. Connection string below to access this database(.mdf) which placed in the directory.
dim con as sqlconnection = New SqlConnection("Data Source=.SQLExpress;integrated security=true;attachdbfilename=|DataDirectory|Universal_data.mdf;user instance=true")
Now the question is that if i access this .mdf file without installing sql server, i also want to access to this .mdf file on other computer(client) after creating DSN or any other connectivity tool.
Let me know you that when i install sql server 2000 or 2005 i create SA user name and password which i use to create DSN on client computer and give SA username and password in the connection string that successfully works and client get access to sql server, connection string is below.
Dim serv = "MY-LAPTOP"
dim con as sqlconnection = new sqlconnection("Data Source=" & serv & ";Initial Catalog=clinic;Persist Security Info=True;User ID=sa")
I only need to know that my application access .mdf file without installing sql server works fine on a single computer, and i want to give access to this .mdf file on other clients without installing sql server on server computer (like i mentioned above paragraph) how will do it.....
I am using sockets to send message between computers. I send the messages alright. What I want is when the message "x0x" comes, the client must be closed within 5 minutes. Teh admin can cancel the request by sending message "-xx" as well. The routine that checks for incoming connections and accepts messages uses WHILE TRUE...END WHILE since it must always listen. Once I get a message, I need to fire a timer control or other that fires within 5 minutes. But the program cant leave the WHILE TRUE at all. If i exit it early, the timer fires and the program does get exit. How do I fire the timer or other routine while still the WHILE TRUE routine checks for incomin connections and messages?
View 5 RepliesI am trying to make a copy of an existing database, I use .net framework data provider for SQL Server.I get error "Unable to connect to source server for Transfer" when it runs to oPackage.Execute().
oConnection = oPackage.Connections.New("what the providerID should be?")
oStep = oPackage.Steps.New
oTask = oPackage.Tasks.New("DTSTransferObjectsTask")[code]......