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 Replies
I have this code below that pings a hostname and responds with the status of the machine:
vb
Public Function PingHostname(ByVal strServerName As String) As Boolean
Dim blnPingResult As Boolean
Dim objPing As New Ping
Dim objIPStatus As IPStatus
[Code] ......
My question is... whenever the machine is not available it hangs as it times out and eventually fails and catches an exception. Is there a better way to do this so my application doesn't hang? What I have is a treeview with a list of computers and when I hit F5 it executes this code and pings the server.
Is there a way to ping an IP address from VB.NET and store the response times?
View 2 RepliesOk so basically im trying to create a small program in visual basic 2008, which will simply ping a hardcoded url in the code and then display the websites response in a textbox. [Code]
View 5 RepliesI 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 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 Repliesi made a tcp/ip application using the .NET TcpListener class, my problem is that sometimes (about 30 / 4000) the connection between the client and the server got interrupted in the middle and the server response to the client is lost.is there a way to know if the server response was successfully sent to the client without the client response back?
View 9 RepliesI am using stored procedures in my application using vb.net, while executing stored procedures on mysql database server thru application, the response time from the server is more. Is there any settings that i need to set on mysql db server or any changes in connection string or in code.
View 14 RepliesI 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 RepliesThis 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]....
I know that you can easily send a ping request and receive a boolean return type in .NET, using something like:
[Code]...
What 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 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 tried altering some code i have to ping an ip address and store the result in an access db.i had it working when i had the ip hardcoded in as a string but I am now gettin an error.instead of having the ip address hardcoded in to the code i want it to be read in from the access db but im now getting this error:System.nullreferenceExceptionbject reference not set to an instance of an object at...button1.click event args ei have underlined the piece of code i tried to change
Imports System.Data
Public Class Form1
Dim Ping As Net.NetworkInformation.Ping
[CODE]...
I am using a DataGrid object that updates every 2 seconds using a timer control.I am trying to have the ping request sent asynchronously to speed up the process. I'll explain what I am trying to do in the code in rem statements..[code]
View 6 RepliesI need to replicate the ping in command prompt. I'm currently using the following:
Try
If My.Computer.Network.Ping(mtbIPAddress.Text) Then
rtbLog.AppendText("Response")
Else
rtbLog.AppendText("Reject")
End If
Catch ex As Exception
rtbLog.AppendText("Reject")
End Try
But I need to get the same response as the ping in command prompt i.e..
Pinging www.l.google.com [74.125.71.104] with 32 bytes of data:
Reply from 74.125.71.104: bytes=32 time=240ms TTL=53
Reply from 74.125.71.104: bytes=32 time=313ms TTL=53
Reply from 74.125.71.104: bytes=32 time=256ms TTL=53
Request timed out.
Reply from 74.125.71.104: bytes=32 time=251ms TTL=53
How do I get the bytes, time and TTL?
I am trying to run this
vb
Public Sub SendPing(ByVal strHostname As String, ByVal objSelectedNode As TreeNode)
Try
Dim objPing As New Ping
[code]....
My problem is that in this code (and I know it's a lame way to do it) I'm checking to see if the node is Green after the Ping has been completed to determine if the ping was successful. I would prefer to return a boolean value to be True if the ping was successful.
When it executes the SendPing on the DragDrop function, it starts that thread and executes the If statement to determine if the node is green, but the ping isnt complete. Now I have to do this function on many nodes at once, so I dont want this to be a single thread. Is it possible to return a value from an async call and then execute a function after that value has been returned, or will this have to be a single thread?
I have developed tcp server and client for Trader to view live rates of Indian market.url My application sends Live tick data of each and every stocks to client but some of user want to get data of specific 4-5 stocks but i dont want to create something new for it.Is it possible to publish only requested stock rates to specific client like we do in webservices we get what we ask for.
View 1 RepliesI'm writing a program that will be based off of TCP communications with a server. The user would click a button, which would send data through TCP Client to the TCP Listener on another computer. The TCP Listener sends back a response, and the TCP client is receiving it. Right now I have the response from the server showing up in the immediate window, which is good. I want the response from the server to determine what action the client program will take next.
How do I use the server's response variable in a different class? I need to use the response from the server in an if-then-else statement to say "if the server response is 001, then execute this code. else, if the response is 002, then execute this code."
I have two web servers with public IPs, for example Server1 with IP 111.111.111.111 and Server2 with IP 222.222.222.222. see the picture:
There is an asp.net webform at Server 1. My intention is:
For every http request to that webform in Server1, the Server1 just pass the request's information to Server2 for logic processing and subsequently Server2 sends the response back to client (i.e. normal browser)
My questions are:
What information that Server1 needs to pass to Server2, so that Server2 able to send response back to client? note that at Server2, there is a TcpListener instance. This TcpListener instance acting as receiver for that webform request information from Server1. What is the suitable object (i.e. the class in System.Net or related namespace such as System.Net.Sockets) at Server2 for sending response back to client? Suitable here means able to meet my intention.
If you try to access a password protected page it does a security check and redirects you if you are not logged in, retaining the URL (ie. Members/MemberLogin.aspx?oc=/PodCast/Default.aspx)The vb script places the "/PodCast/Default.aspx" in a variable and holds it until the login process is complete.Once the user types in their username and password it is suppose to do a Response.Redirect(strRedirectURL) and go to the "/PodCast/Default.aspx" but instead it goes to the default.aspx page for logging in successfully
View 1 RepliesThe target server is writen in Cold Fusion and i have no access to there.
In addition i get only this error msg: The remote Server returned an error: (500) Internal Server Error
What can i do in order to come with a more friendly exception message?
Am i overlooking something obvious in my code? myResponse.Close()
Im trying to look at an response string from a Cisco phones web server...
it returns:
TFTP Server 1</B></TD>
<td width=20></TD>
<TD><B>10.0.200.19</B>
i.e. there are random carriage returns in the return....so its not matching my filter.
[Code]...
I have created a vb.net application that uses a SQL Server database at a remote location over the internet.There are 10 vb.net clients that are working on the same time.The problem is in the delay time that happens when inserting a new row or retrieving rows from the database, the form appears to be freezing for a while when it deals with the database, I don't want to use a background worker to overcome the freeze problem.I want to eliminate that delay time and decrease it as much as possible?
View 3 RepliesI'm trying to port an old VB.NET application to an Android application, but due to my lack of Java experience I am unable to find this one out. I have tried multiple solutions but to no avail.The idea is basically to do a POST request to 'url...' and getting the response cookies.[code]
View 2 RepliesThis is my first time using SOAP with anything. I have an interesting situation, I have to send query's via soap to a secure server and get a response back and then import the response into a database. I have the connection to the secure server figured out and importing the returned xml figured out. I followed examples however I get nothing back in the service windows from the remote web site.
Here is my vb.net code with the soap request inside:
Imports System.Net
Imports System.Security.Cryptography.X509Certificates
Imports System.IO
Imports System
Imports System.Text
Imports System.Data
[Code] .....
May I ask a question to you all.I have vb.net project that generate sales report from SQL Server Database.I changed SQL Server 2005 Express to SQL Server 2005 Standard Edition.
After that my program can't run properly and every time I got Time Out Expire message.
That program work properly with SQL Server 2005 Express.May I request suggestion how to fix this.
