How To Ping Proxies ? Ie In IP:PORT Format

Dec 26, 2010

Well I decided to try make a proxy checker, like Charion or Elite proxy checker. These programs accept large lists of proxies in the IP:PORT format, ping them tell you the response time see the screenshot of Elite Proxy Checker, im trying to make a simplified version of this program. [URL]I investigated and made my checker using Ping.SendAsync(ip, timeout, ip) method. It was only afterwards that I discovered that you can only Ping IP's using this method, not the ports as well. Ive spent a few hours trying to find the correct class/methods in order to be able to ping ports, reading different forum posts from experts they say its impossible to ping ports only IPS, can only use sockets to try open a connection with the port.

[Code]...

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Sep 8, 2010

I am using VB.net to ping a domain/IP, using the following code;

My.Computer.Network.Ping(Address, 1000)

I now want to add a port to the domain/IP - e.g google.co.uk:21

How would I go about this?

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i trying to make ping system with port using multi-threading.. but seems i got error on label.. i still wonder why suddenly label become a problem..

[Code]...

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Ping Using Vb.error - Ping An Ip Address And Store The Result In An Access Db

Jul 8, 2009

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]...

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May 28, 2012

I 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?

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I am using a VB.NET(VS2010) to read data from serial port. I have 8-bit data to collect through rs232. This data is represented numbers. What reading method should I use and how to convert it to double format?

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I am making a web browser and I was wondering how I could create connections through proxies. Right now the browser only uses UDP packets, so any info specifically on that would be great.

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Proxies are HTTP and socks. How can I use them to surf internet? I know "iwebproxy " of .net but do not understand how to use them for this perpose.

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Nov 2, 2010

What's the RegEx for IP : Port?

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How to set timeout time for Proxies.

i am using

dim w as new webclient

w.proxy= new system.net.webproxy("xxx.xxx.xxx.xxx.:xxx")

most of the time it says unable to connect or it throws any error msgs... when i check those proxy in internet, they seem to work well. only few proxies are working.

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Using Proxies With HTTPWebRequest And Post?

Feb 16, 2011

I'm trying to use proxies with HTTPWebRequets and it works just fine until I try and post data. It keeps timing out for some reason. Attached is the class I use for webrequests.

Imports System.IO
Imports System.Net
Public Class EasyHttp
Public Enum HTTPMethod As Short

[code]....

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VS 2008 Httpwebrequest & Proxies?

May 4, 2010

Im programming something with httpwebrequest/response. I'd like to incorporate proxies with that program. I was just wondering whats a good way to verify if proxies are working or not?

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Have Individual Proxies For Each WebBrowser Control?

May 29, 2011

I have an application that has 4 WebBrowser control to monitor a commercial website. I would like each WebBrowser to be using its own proxy however it looks like the proxy setting affects all the browsers and cannot be set on an individual basis.

Is there a way to have individual proxies for each WebBrowser control?

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Using Private Proxies With Webbrowser Control

Dec 24, 2009

This has been a huge issue for me for a long period of time. Endless searching on google and through the visual studio documentation has yielded no results. Here is the code I'm using to change my webbrowser proxy:[code]

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VB 2008 Application Rotate Proxies?

May 14, 2009

I'm trying to implement proxy rotation within my vb 2008 ap & I wasn't very sure with where to start. I would like to have an empty message box where people can drag and drop their proxies or import their proxies into. Then the program will enable the user to surf via a web browser control.

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Multiple Webbrowser Controls Running With Different Proxies?

Jan 31, 2011

I'm trying to run a specific test on my server using a program that can run multiple requests (using Webbrowser control) at the same time but with different proxy settings.What I am using now is working but only for one webbrowser control, im seeking advice for how to run multiple side-by-side.

<Runtime.InteropServices.DllImport("wininet.dll", SetLastError:=True)> _
Private Shared Function InternetSetOption(ByVal hInternet As IntPtr, ByVal dwOption As Integer, ByVal lpBuffer As IntPtr, ByVal lpdwBufferLength As Integer) As Boolean

[code].....

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User Can Supply A List Of Proxies To Test?

Feb 27, 2011

I was wondering if somone one could point me in the right direction on this.Basically I am making a proxy testing program. A user can supply a list of proxies to test. What i want to be able to do is have them be able to specify how many threads they want to run. Then have the program go through the list testing each one using the amount of threads supplied. Really not sure even where to start on this. Threadpooling?

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I have been trying to implement proxies in a webbrowser control...

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VS 2008 Head Spinning With Webbrowser And Proxies?

Jan 23, 2010

I have 5 proxies, 2 of them are standard and 3 of them requires a username and password.

Im using a webbrowser control. Can anyone point me to the right direction as to what codes i need to implement for both standard proxies and the ones that have user names and passwords?

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Nov 3, 2009

How would I go about using a webbrowser to increase website hits and has the option of enabling proxies. I'm more concerned with the proxy part

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Are There Any Tools To Build ASMX Proxies From Server Side Assemblies

Aug 21, 2009

We have a set of assemblies which implement web services operations.To build the client proxies, we first build and deploy the web services (assemblies and ASMX files) on the server.Then we use wsdl.exe to point to the ASMX endpoints and generate the classes for the client proxies.I've seen that it is possible to create the proxies from wsdl files (instead of asmx endpoints) using wsdl.exe or disco.exe.Is there a tool to generate wsdl files or event better proxy classes directly from the server assemblies without the need to use a web server?

1) This is a somewhat large project that has been in development for over a couple of years now. The decision to use ASMX web services was made before the existence of WCF.

2) I already thought about writing our own proxy generator and that may be an option if we don't find a tool that does it.

3) We still want to bind to the WSDL contract. What I'm trying to avoid is having a dependency on a web server during the build process.

4) We already auto-generate the proxies in our automated build which runs in TFS Build and that has not been an issue per se. The issue, as I was told, is having to split the build in two parts: server & client. There may be alternatives to avoid the split using some fancy MSBUILD task, but my knowledge on that matter is limited.

5) I do expect the build to brake on TFS Build if the client side code and server side code don't match during compilation. That should have been addressed on the developer's machine before check-in.

6) We have strict control over the server and the client parts. This set of web services serve as a back-end to a Click Once Windows Forms application. Everything runs on an intranet. Every time the contract changes, it is done in tandem with a new version of the client application.

7) WCF is not an option in the short term for this set of web services. When I joined the project over a year ago I was given the task of creating a new set of web services for interoperability with other internal systems. Those web services were designed upfront to be easily upgradable to WCF once upper management allowed us to use WCF. I'll have to take a look into svcutil.exe, but if it does what we need, I'll have another point in trying to convince upper management to adopt WCF.

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I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port

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I would like to detect the Address and Port number of the Parallel Port in computer.

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If I uninstall the COM1 and reboot, it works. If I shut down (power off) and restart, I get the message below. If I uninstall then click on Scan for Hardware Changes,The given port name does not start with COM/com or does not resolve to a valid serial port. Parameter name:portName

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I am trying to get my 4 port USB relay board to work in VB.net using the COM PORT. I found some code from a poster who has the 16 port USB relay version. When trying his code i can only get it to turn on relays 1-3 all at the same time. The product can be found here: USB 4 port relay

"01+//" - Relay 1 is switched ON
"01-//" - Relay 1 is switched OFF
"02+//" - Relay 2 is switched ON
"02-//" - Relay 2 is switched OFF

[code].....

So i am confused as to how to separate each relay out with that code above and just be able to turn on any number 1-4 relay on or off independently from each other!

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What Should Use Instead Of Ping

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In my Windows Forms application (on startup) I use the ping command to check if both the Internet connection and my SQL Server are alive.Is there any "better" way-command I should use for accomplishing the above task in the .NET framework 2.0?

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Making An Application That Uses Multiple WebBrowser Controls And Multiple Proxies?

Dec 17, 2009

I am making an application that uses multiple WebBrowser controls, and multiple proxies.The code for changing the proxy settings are as such:

#Region "Proxy"
Public Structure Struct_INTERNET_PROXY_INFO
Public dwAccessType As Integer
Public proxy As IntPtr

[code]....

Note: getRandomProxy gets a random proxy from a list.Problem is that whenever RefreshIESettings(getRandomProxy()) is applied, the proxy will be applied to all of the WebBrowsers, while i would need to have a unique proxy for each WebBrowser. Not having this would just error out the page in the other browsers and so on.

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