Invalid URI: Invalid port specified when url has more than one colon

Question

I am using dnsdynamic.org to point to my personal website hosted at my home. My home ip will be frequently changing once a month. dnsdynamic.org provide a web method call to update ip. ``` https://username:password@www.dnsdynamic.org/api/?hostname=techno.ns360.info&myip=127.0.0.1 ``` When I call this through browser it works perfect. When I try to call this through c# code it throws the following exception. ``` Invalid URI: Invalid port specified. at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind) at System.Net.WebRequest.Create(String requestUriString) ``` Since there is a colon in the url it looks like system.uri try to parse my password as integer. I tried adding a port after .org ``` https://username:password@www.dnsdynamic.org:443 ``` no luck with this. could someone please point me how to resolve this error. I tried with don't escape and escape option while creating uri, still not working. ``` var ri = new Uri("https://username:password@www.dnsdynamic.org/…

Accepted Answer

If you're using an `HttpWebRequest` to make the reqeust, you shouldn't include the credentials in the URI (as you can tell, it's invalid).

You should instead add the credentials to the `HttpWebRequest` and let it handle passing them through:

```
// Only broke this up for readability
var uri = new Uri("https://www.dnsdynamic.org/api/?hostname=techno.ns360.info" + 
                  "&myip=127.0.0.1", true);
var cache = new CredentialCache();
cache.Add(uri, "Basic", new NetworkCredential("username", "password"));

var request = WebRequest.Create(uri);
request.Credentials = cache;
```

Invalid URI: Invalid port specified when url has more than one colon

Solution

Problem