The
Windows default instalation comes with
MSSQL client has a cliconfg application that is used to set aliases to Servers IP addresses and ports. Sometimes we use in our ConnectionStrings some of those aliases instead of IP address,port. How can I programatically translate that alias to an address using .NET?
Update: .NET + Windows automatically do this translation when we use the ConnectionString, but I don't know if the result of the translation (IP Address) is written in any public property where we can read it.
Update: I discovered that the cliconfg stores the aliases in the Windows Registry. I wonder if the Windows Registry is accessible from .NET
32bit HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\Client\ConnectTo
64bit HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\MSSQLServer\Client\ConnectTo
I found the following solution for 32 bit versions of Windows:
using Microsoft.Win32;
static void Main(string[] args)
{
var Aliases = Registry.LocalMachine.OpenSubKey(
@"SOFTWARE\Microsoft\MSSQLServer\Client\ConnectTo");
Aliases.GetValue("Alias");
}
只要不需要端口,使用System.Net.Dns类获取IP地址就很简单了:
IPAddress[] ips = Dns.GetHostAddresses("myHostName")
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