I've been working on a program that monitors ours and our clients server's to make sure they are still on. the ones that are ping able were easy, now I'm trying to monitor servers that are not ping able. what I'm thinking of doing is creating a small client program to put on each one of the none ping able server that sends a packet to our server every 30 seconds over port 80 (not have to worry about firewalls) and once the server program doesn't receive a packet for 2 minutes then it will display/sound a warning. my questions is is this possible, or is there a better way of doing this. right now i just am checking to make sure the server/internet connection is on, later i will look into getting info from event looks, SNMP, etc.
2. User clicks go next to textbox with data entered, then button and a copy of form refered to as browse is created.
3. Form refered to as browse is directed to the url refered to on the form refered to as monitor, in the associated textbox(passed as a parameter to copyForm)
4. A timer is used to refresh the webpage every 10 seconds
What I wanted to happen was the program turn the associated picturebox in form1 green if page is loaded, and black is loading.
2. User clicks go next to textbox with data entered, then button and a copy of form refered to as browse is created.
3. Form refered to as browse is directed to the url refered to on the form refered to as monitor, in the associated textbox(passed as a parameter to copyForm)
4. A timer is used to refresh the webpage every 10 seconds
What I wanted to happen was the program turn the associated picturebox in form1 green if page is loaded, and black is loading.
How can I monitor how many times a switch open and close? I am planning to add a label13 to my form and use the LPT port so every time the switch goes high (1) it will add 1 to my label13.text. The Printer Adaptor address in the target PC is 0x378. using pin 10 (ACK) or pin 2 (D0).
I want to write a program that can control port communication in a PC by blocking certain port based on the admins request and also monitor incoming and outgoing network traffic. Can i achieve this using vb.net winsock?
I am trying to write something through serial port to my device. Before that, I added the data received handler to read the data when the device response with some data. The problem now is how can i check the status of the data received event? I need to know when the data received event has started or has ended before I can proceed to do some other task like check if the result is successfully receive.
I'm creating an application that notifies users if a new row has been added to a table in the applications database. Would it be best to create a trigger for this or just check every few seconds directly from the application?
First off, I am new to ASP.net, so this is new territory for me.I am using Telerik controls on a VB.net project. I get the following error as a javascript error for every action on the form. Changing any value, whether its a telerik slider, a radio button, asp:button, submit button, telerik rating. Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500
I understand that the 500 error is an error thrown when the server doesn't have any more details, however I was hoping someone might have had a similar situation and can point me the right direction as I have a good feeling it has something to do with the Telerik controls.
I was able to submit the form using javascript however then I get the following error, and I don't know if they are related or not.Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
I have an automated program that batch prints PDF files to certain network printers. On occasion our print server will go down & screw up the automated printing process & lose prints. I am looking for a way to check the status of the print server before sending prints. If the status is not "OK" then I want to pause the automated process until the server is back to "normal". Can anyone tell me how I would check this status or where I should be looking?
I am Using Visual Basic 2010. I want to check My Connection Status. Connected or not in Remote Server Connection (SQL Server 2008 R2). How To Check Connection Status..?
I 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 want to make a process monitor tool with WMI that monitor the processes created or deleted, but the code will not work. Note to reference System.Management,
Can I monitor the registry for changes similar to how sysinternals process monitor does it in VB? I have checked many different articles and C# samples but not come any closer to getting an answer, I would like to know if there an easier way (a VB sample perhaps)that you folks can share. Ultimately I'd like to be able monitor other things too like file system, processes etc but wonder most about how the registry can be done in VB...Would using system.management be a start? Or WMI? if so is there a nice VB sample..
Now for a succesful insertion i want to notify the user about a successful save operation.....i.e,i want to display a message "Successful Save Operation"to the user. How to do this using the Status Strip?
I've got the code to display the current browser status text in the status bar but i want it to display the name of my web browser aswell. Example: Dreamincode.net - (Name of Webbrowser)
He is my code for the displaying staus text. Private Sub webBrowser1_StatusTextChanged( _ ByVal sender As Object, ByVal e As EventArgs) _ Handles webBrowser1.StatusTextChanged
I have used a third party component to download a file from my FTP server. One user has advised that their antivirus software (ESET) is blocking it. How can I determine which port it's using so that they can exempt it?
I am working on a way to send commands to an Arduino board from a web site. The Arduino board is connected to the computer via a USB port (a COM port).
I have managed to connect and control the board using a VB.NET program. I also wrote a VB.NET class that can instantiate a COM connection and send and receive messages.
My next step is to basically create a program that will act as a proxy between my web server (IIS 7 running on Windows Vista) and the Arduino board. When a user gets to my ASP.NET page, the page will then send a command to the proxy to open the COM connection. When the connection is open and ready then I can send commands to the proxy. In turn, the proxy will send these commands to the board and listen for the responses it receives from the board. The proxy will then pass these messages back to the ASP.NET page.
The main issue I see occurring is that if a second user opens the web page and tries to open the COM port, there will be an error. Will this cause the first connection to fail? I guess I can first check if the port is already in use and give the second user a message. Are there any other potential challenges I am missing or not seeing?
I am new to socket communication. I found a few samples on the web and I managed to make my own host-client communication but i wanted to go a bit further and connect to port 80 of a server and it was just a disaster! First of all I know I can just use the functions that vb has itself but I want to make my own connections ... I have got some reasons I need this one! Do I really have to make them "connect" or just somehow without connecting I get the data? So I'm stack at the point that the connection is made ... it refuses to connect.
I have a logon screen that contains several textboxes where user can fill in their logon info (username, pass, server, database, connection port, etc.). I'd like to have the application memorize what they've put in after the first time successfully logon in form of a dropdown box. Let's say the 2nd time when users trying to logon, there is a drop down box of username, server, connection port, etc. available as a dropdown list item. They can select the info and simply enter the password.Is there a way to do that? If so, do you have an example or a reference source I can learn from?
I have an application to make a server and clients to read/ send text to it but I want a program I can run from a remote computer that you enter the ip and port and it crashes the server.
I'm trying to make a Client that will automatically run a .DLL that I have created and send information over port 80 to my Server program that will take that data and import it into a database for me. Problem is, I don't know where to start as I have never done this before. I want to do this in VB .NET as this is the programming language that I know. What are methods of doing this? Is there sample code out there for something like this? My google searches are failing me.
A better layout of what I'm trying to do:1. Client Runs .DLL, retrieving information from an Excel file.2. Client takes these properties with the data it contains and sends it to a program outside of the local network through port 80, my boss refuses to let me use any other port.3. Server accepts the data and builds its own properties to be imported into my Access Database.4. Repeat over, and over, and over, and over.
I plan for the server application to be a console application, and the client to be a windows form.
I am developing a program that send sms to cellphone using a datacard.I can read the com port from the server if i run the program from the server, but i run the program from the terminal y read the com port of the terminal, but i need to read the port from the server for use datacard. What can i do? My code for read com port.
I wanted to know what are the risks of opening up a socket server on a specified port? Right now I have it limited to only accept requests from 1 specific IP to that port and all the other ones get rejected (using the windows firewall), is there a way to implement an authentication or anything else so I can allow it to be accessed from any IP worldwide yet have it secured?
Imports System.ServiceProcess Imports System.IO Public Class fswService
[Code].....
2 problems: first, intellisense error saying: 'fswService' is a type and cannot be used as an expression. second, I can not figure out a way to pass on to the service the path of the folder to watch (which is stored at My.Settings.userPath).
