.NET HttpListener Prefix issue with anything other than localhost

Posted by jchristner on Stack Overflow See other posts from Stack Overflow or by jchristner
Published on 2010-04-02T01:53:02Z Indexed on 2010/04/02 2:13 UTC
Read the original article Hit count: 892

Filed under:

c#

|

httplistener

|

http

I'm trying to use C# and HttpListener with a prefix of anything other than localhost and it fails (i.e. if I give it "server1", i.e.

http://localhost:1234 works, but

http://server1:1234 fails

The code is...

HttpListener listener = new HttpListener();
String prefix = @"http://server1:1234";
listener.Prefixes.Add(prefix);
listener.Start();

The failure occurs on listener.Start() with an exception of "Access is denied.".

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about httplistener

.NET HttpListener: when registering both HTTP & HTTPS I get "conflicts with an existing registration

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to use .NET HttpListener in a C# project. When I register my prefix "http://*:8080/" it does not seem to work for HTTPS urls (i.e. doesn't pick them up). When I try the following code to register both the HTTP and HTTPS versions of the prefix however I get the error: "Failed to listen… >>> More
C# HttpListener Prefix issue with anything other than localhost

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I'm trying to use C# and HttpListener with a prefix of anything other than localhost and it fails (i.e. if I give it "server1", i.e. h t t p : / / l o c a l h o s t : 1 2 3 4 works, but h t t p : / / s e r v e r 1 : 1 2 3 4 fails (sorry, but the site thinks I'm trying to spam... the… >>> More
C# HttpListener without using netsh to register a URI

as seen on Stack Overflow - Search for 'Stack Overflow'
My application uses a small webserver to server up some files and have a web interface for administration remotely. Right now the user has to use netsh to register the URI like so netsh http add urlacl url=http://+:1233/ user=Chris-PC\Chris Which is no fun for the average user. I'd like the program… >>> More
.NET HttpListener Prefix issue with anything other than localhost

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to use C# and HttpListener with a prefix of anything other than localhost and it fails (i.e. if I give it "server1", i.e. http://localhost:1234 works, but http://server1:1234 fails The code is... HttpListener listener = new HttpListener(); String prefix = @"http://server1:1234"; listener… >>> More
How to be sure a http request is local when using HttpListener

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm user HttpListener. I want to only process requests however that come locally, not from another machine/server. QUESTION: How would I programmatically verify if an incoming request is local for sure? For example would it be using some of the HttpListenerRequest members? thanks >>> More