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.
View 8 Replies
Using 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.
[Code]...
I am totally new to socket connections, so I've pieced together code from the internet to try and start a TCP Listener object. [code] Is it possible to create a TCP listener that does not need a specific number of connections initialized? Can I just have it listen on an open port until data is received? I will be receiving a lot of data at once from many servers...
View 1 RepliesProxies 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.
View 1 RepliesWhat's the RegEx for IP : Port?
View 3 RepliesHow 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.
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]....
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?
View 1 RepliesI 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?
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]...
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]
View 4 RepliesI'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.
View 2 RepliesI'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].....
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?
View 2 RepliesI have been trying to implement proxies in a webbrowser control...
View 1 RepliesI 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?
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
View 10 RepliesWe 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.
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.
I'm populating a listview with a list of databases on a selected SQL instance, then retrieving a value from each database (It's internal product version, column doesn't always exist) I'm calling the below function to populate the second column of the listview:
[Code]...
I'm trying to understand how to handle db connections in a multi-theaded windows program.It I have this simple class:
public class MyClass
private myConn as new sqlconnection
private MyThreadPool(5) as Thread
[code]....
I searched araound and having some difficulties in implementing one scenario with SQL Server 2000 and sybase.I have two SQL servers on different locations naming ServerA (MSSQL Server) and ServerB (Sybase server).I have a table called SALARY.Whenever I insert one record to customer SALARY in ServerA, I also will insert it into ServerB.If should any of them failed, both of them should be rolled back.I am using Asp .Net with VB for the programming.I do not have the right to change / add table in Server B. The only thing allowed in Server B is insert/delete/update record.I looked around and find a method to use TransactionScope but I am not quite sure it is the right way to do.url...
View 1 RepliesI am developing an Application that uses TCP To listen for connections, and then when a message is sent to the server and then it alerts the IP that is running the server. (Lets say the server is on a iPhone, and some how the iPhone gets a text message, which alerts a tcp server running in the background via a .jar, it would send the owner of the iPhone a message on the computer telling it it has a text. This is just an example though, but I think it gets the general idea across. I've been trying to do this, and I can connect to a TCP Server (using 127.0.0.1:8888 for testing purposes, will move to a solid IP and Port later). I can start the server (its still buggy and under development) but i don't know how to connect to the server via an application, and when a certain message is received to alert the IP Running the server.
My Server Code is:
Dim serverSocket As New TcpListener(8888)
Dim clientSocket As TcpClient
Dim infiniteCounter As Integer
Dim counter As Integer
serverSocket.Start()
[Code] .....
Now I know that to connect you'd do something like
Code:
Dim clientSocket As New System.Net.Sockets.TcpClient()
Dim serverStream As NetworkStream
clientSocket.Connect("127.0.0.1", 8888)
serverStream = clientSocket.GetStream()
And I know I would have to use some sort of Byte() method to send/receive messages, but I am at a loss on how to set it all up.
I need to download a bunch of pages from a web server, ie. spidering. I know that servers are typically configured to only allow a couple of concurrent connections from a given IP, but that would already halve the total time to run the script instead of downloading one page at a time.
View 4 Repliesi've been previously using Visual Studios built in wizards for manipulating data access to and from an MSAccess Database, however just recently i coded my own classes and connections to the database, ive been able to select, update and delete records effectively however my problem comes with inserting records.
I have a 3 tiered table database:Tbl_PO, Tbl_Parts, Tbl_Shipments each po has multiple parts, each part has multiple shipments.when i insert a record into the tbl_PO, i need to retrieve the ID used on that insertion.
I am using two SQL connections in my Program. I declare them like this:
Public SQLcon As New SqlConnection("server=(local);database=master;Trusted_Connection=True;")
[code].....
How do I go about closing a connection if I redirect before I can close it? Does it close when the new page loads? For example:
[code].....
This thread (Question) is a continuation of a question answered by JohnWein. the original question asked by me in this thread:http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/4d9b44a0-91ed-4f64-a3a2-74afffce2256 an this is the answer:
[Code]...
The question is, in the case of four connections, how can I make sure that all points are connected with minimum number of connections using the same above code?
I have a Visual Studio 2008-SQL Server 2005 app that will be throwing alot at it. It's my testbed learning app. I'm also a student of this craft(43 years young) like another poster posted on another thread. I come from a PICK/BASIC jBase background. Anyway as-is my app has a connection to the database that is opened on form load. I close the connection on form close. It's a one form app currently. Is this wrong? It seems that maybe I should not have a connection opened possibly all day. I'm looking into incorporating Datasets, dataAdapters into my next phase of evolution. I looked at the material and it's tough. For me anyway. But I will get into it. I will fetch the data into a dataset so that I can keep the connection open only for a little while. I was turned on to this "keep the connection just as long as you need it" idea from someth
View 3 RepliesThe current project that I'm working on is mainly employing a database back-end, and I have a few questions regarding database connections in .Net, before I actually convert.
For VB6, I connect to my databases using ADODB connections and recordsets in code only, and not by binding controls. I perform my queries using SQL statements..For differentations in the type of database, such as connecting to a MySql, a MsSql, or an access database, it was mainly the connection string that had to be changed.. and ofcourse installing the drivers.
Now for VB.Net, I believe this can be done using the System.Data assembly. While looking into it, I've seen that it has a lot of members, such as System.Data.Odbc, System.Data.OleDb, System.Data.SqlClient.
My question is, what is the main difference between those namespaces (just briefly)? I would like to generally understand the main differences before I start with anything. I have also heard about LINQ. It looked very alien to me in the MSDN library. (PS: what's the deal with Ado.Net?)
