I\'m using the .NET WebRequest while changing my HOSTS file. I\'m observing that System.Net doesn\'t honor those changes - how can I make it do so?
I have a number o
A late answer to be sure, but I found this solution worked better than the accepted answer. In my scenario I am testing SQL connections, and I couldn't apply the existing answer since I have no request.KeepAlive
to set.
This page by Brian Mancini ("derp turkey") details his adventure in clearing the DNS cache. Full props to him, I'm just adding his solution here:
public class DnsUtils
{
[DllImport("dnsapi.dll", EntryPoint="DnsFlushResolverCache")]
static extern UInt32 DnsFlushResolverCache();
[DllImport("dnsapi.dll", EntryPoint = "DnsFlushResolverCacheEntry_A")]
public static extern int DnsFlushResolverCacheEntry(string hostName);
public static void FlushCache()
{
DnsFlushResolverCache();
}
public static void FlushCache(string hostName)
{
DnsFlushResolverCacheEntry(hostName);
}
}