From code I want to force a Windows machine to use a specific network adapter for all connections to a specific IP address.
I plan to do so by using the ROUTE ADD command line tool, but this requires that I know in advance the network adapters' index number (as it must be given to the ROUTE ADD command).
QUESTION: How can I programmatically retrieve a network adapter's index, given I know its name?
I'm aware that ROUTE PRINT shows me the information I need (the index numbers of all network adapters present), but there must be a way to get that information programmatically too (C#)?
Note, that I don't like parsing the text output from ROUTE PRINT, as the text format may change with different Windows versions.
You can obtain the interface index of your network adapter
by using the .Net NetworkInterface (and related) classes.
Here is a code example:
static void PrintInterfaceIndex(string adapterName)
{
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
Console.WriteLine("IPv4 interface information for {0}.{1}",
properties.HostName, properties.DomainName);
foreach (NetworkInterface adapter in nics)
{
if (adapter.Supports(NetworkInterfaceComponent.IPv4) == false)
{
continue;
}
if (!adapter.Description.Equals(adapterName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
Console.WriteLine(adapter.Description);
IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
IPv4InterfaceProperties p = adapterProperties.GetIPv4Properties();
if (p == null)
{
Console.WriteLine("No information is available for this interface.");
continue;
}
Console.WriteLine(" Index : {0}", p.Index);
}
}
Then just call this function with the name of your network adapter:
PrintInterfaceIndex("your network adapter name");
You can also obtain the InterfaceIndex of your network adapter
by using the Win32_NetworkAdapter WMI class. The Win32_NetworkAdapter class
contains a property called InterfaceIndex.
So, to retrieve the InterfaceIndex for a network adapter with a given
name, use the following code:
ManagementScope scope = new ManagementScope("\\\\.\\ROOT\\cimv2");
ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_NetworkAdapter WHERE Description='<Your Network Adapter name goes here>'");
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query))
{
using (ManagementObjectCollection queryCollection = searcher.Get())
{
foreach (ManagementObject mo in queryCollection)
{
Console.WriteLine("InterfaceIndex : {0}, name {1}", mo["InterfaceIndex"], mo["Description"]);
}
}
}
If you do not want to use WMI you could also use the Win32 API function
GetAdaptersInfo in combination with the IP_ADAPTER_INFO struct.
You will find an example here pinvoke.net.
have you looked into using C#'s system.net.networkinformation interface?
http://msdn.microsoft.com/en-us/library/system.net.networkinformation.networkinterface.getallnetworkinterfaces.aspx
I'm not familiar with ROUTE ADD, but you can theoretically marry up information from one with the other.
Related
I'm trying to return, or in this example print out each user that has been created on a windows machine, I don't really care about the windows users like "defaultuser0", but if anyone can tell me how I can exclude them aswell, that would be great, but back to the main question.
I have this code below, and it works to a certain degree. Output I received was this.
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="PC_NAME",Name="admin"
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="PC_NAME",Name="Administrator"
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="PC_NAME",Name="DefaultAccount"
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="PC_NAME",Name="defaultuser0"
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="PC_NAME",Name="Guest"
\PC_NAME\root\cimv2:Win32_UserAccount.Domain="HEAVEN",Name="WDAGUtilityAccount"
Now I understand that this is natural behaviour of my code. Is there a way I can get the actual usernames, without including the domain and all the other directory code?
Here is the code I'm using.
var searcher = new ManagementObjectSearcher(new SelectQuery("Win32_UserAccount"));
foreach (var managementBaseObject in searcher.Get())
{
Console.WriteLine(((ManagementObject) managementBaseObject).ToString());
}
Instead of letting the compiler choose the base type ManagementBaseObject, you can specify that you only want all ManagementObjectinstances in the collection.
foreach (ManagementObject instance in searcher.Get())
This way you do not need to cast explicitely again.
To access any property of such a ManagementObject use the [string] access notation. The string has to be the property name, in your case it would be Name.
Console.WriteLine("Username: {0}", instance["Name"]);
The full code would be:
var searcher = new ManagementObjectSearcher(new SelectQuery("Win32_UserAccount"));
foreach (ManagementObject instance in searcher.Get())
{
var strUsername = instance["Name"];
Console.WriteLine("Username: {0}", strUsername);
}
I need to get the IP Address, Subnet mask, gateway, DNS and check if DHCP is enabled from a given adapter.
I have this code that loads my Ethernet and Wireless Adapters:
public void LoadAdapters()
{
if (cmb1_adaptadores.Items.Count < 1)
{
NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface adapter in adapters)
{
var ipProps = adapter.GetIPProperties();
IPInterfaceProperties properties = adapter.GetIPProperties();
if (adapter.NetworkInterfaceType == NetworkInterfaceType.Wireless80211 || adapter.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
{
cmb1_adaptadores.Items.Add(adapter.Description);
}
}
}
cmb1_adaptadores.SelectedIndex = 0;
}
I've found many sample codes with foreach and loops to get every adapter ip, dns, etc.
I need an easier thing, but I don’t know how to approach it.
Using the adapter’s description from my combobox, I want to fill some labels with the adapters info, I mean:
If (adapter.description == cmb1_adaptadores.SelectedItem)
{
labelIP1 = adapter...
labelGATEWAY1 = adapter...
}
Of course it will be more complicated than a simple if, but this way every time a new item is selected, this method will run using the description selected in the combobox to reference the adapter.
In C# I wish to get my own DHCP or Static IP address.
I use this code:
string host = Dns.GetHostName();
IPHostEntry ip = Dns.GetHostEntry(host);
Console.WriteLine(ip.AddressList[0].ToString());
and I get these results:
How do I know which one to use? I have virtual PCs installed on this PC as well.
You can use WMI to access network interface properties and find out is DHCP is enabled:
ManagementObjectSearcher searcherNetwork = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_NetworkAdapterConfiguration");
foreach (ManagementObject queryObj in searcherNetwork.Get())
{
foreach (var prop in queryObj.Properties)
{
Console.WriteLine(string.Format("Name: {0} Value: {1}", prop.Name, prop.Value));
}
}
Or you can use NetworkInterface.GetAllNetworkInterfaces() to get more info such as the Name and NetworkInterfaceType (Ethernet, Wireless80211 etc) and filter by those properties
You can also access IPv4InterfaceProperties.IsDhcpEnabled property such as:
foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
{
Console.WriteLine(ni.GetIPProperties().GetIPv4Properties().IsDhcpEnabled);
}
I have found the answer here:
Get IP Address using C#
This is the code (in case of a broken link. I just did not want to pass this code off as mine you see)
string hostName = Dns.GetHostName(); // Retrive the Name of HOST
Console.WriteLine(hostName);
// Get the IP
string myIP = Dns.GetHostByName(hostName).AddressList[0].ToString();
Console.WriteLine("My IP Address is :"+myIP);
I am working on an installation program for one of my company's product. The product can be installed multiple times and each installation represents a separate windows service. When users upgrade or reinstall the program, I would like to look up the services running, find the services that belong to the product, and then find the executable file and its path for that service. Then use that information to find which one of the services the user wishes to upgrade/replace/install/etc. In my code example below, I see the service name, description, etc, but don't see the actual filename or path. Could someone please tell me what I'm missing? Thank you in advance!
The code I have is as follows:
ServiceController[] scServices;
scServices = ServiceController.GetServices();
foreach (ServiceController scTemp in scServices)
{
if (scTemp.ServiceName == "ExampleServiceName")
{
Console.WriteLine();
Console.WriteLine(" Service : {0}", scTemp.ServiceName);
Console.WriteLine(" Display name: {0}", scTemp.DisplayName);
ManagementObject wmiService;
wmiService = new ManagementObject("Win32_Service.Name='" + scTemp.ServiceName + "'");
wmiService.Get();
Console.WriteLine(" Start name: {0}", wmiService["StartName"]);
Console.WriteLine(" Description: {0}", wmiService["Description"]);
}
}
I might be wrong but the ServiceController class doesn't provide that information directly.
So as suggested by Gene - you will have to use the registry or WMI.
For an example of how to use the registry, refer to http://www.codeproject.com/Articles/26533/A-ServiceController-Class-that-Contains-the-Path-t
If you decide to use WMI (which I would prefer),
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_Service");
ManagementObjectCollection collection = searcher.Get();
foreach (ManagementObject obj in collection)
{
string name = obj["Name"] as string;
string pathName = obj["PathName"] as string;
...
}
You can decide to wrap the properties you need in a class.
the interface has changed since #sidprasher answered, try:
var collection = searcher.Get().Cast<ManagementBaseObject>()
.Where(mbo => mbo.GetPropertyValue("StartMode")!=null)
.Select(mbo => Tuple.Create((string)mbo.GetPropertyValue("Name"), (string)mbo.GetPropertyValue("PathName")));
I have written a Windows service to collect information from all of our SQL servers. The service gets installed onto each server, and utilizing WMI and SMO, inserts relevant system information back to a central database. In order to get the SQL information, I use the following c# code:
List<Server> sqlServers = new List<Server>(); //List of Smo.Server objects
string registrySubKey = #"SOFTWARE\Microsoft\Microsoft SQL Server";
string registryValue = "InstalledInstances";
try
{
RegistryKey rk = Registry.LocalMachine.OpenSubKey(registrySubKey);
string[] instances = (string[])rk.GetValue(registryValue);
if (instances.Length > 0)
{
foreach (string element in instances)
{
Server s;
string serverInstance;
if (element == "MSSQLSERVER") //If default instance
{
serverInstance = System.Environment.MachineName;
}
else
{
serverInstance = System.Environment.MachineName + #"\" + element;
}
s = new Server(serverInstance);
if (s != null)
{
sqlServers.Add(s);
}
}
}
}
The only problem I'm having is on our SQL clusters.
For those of you unfamiliar with active/passive sql clustering, you cannot connect directly to one of the nodes. Instead the sql cluster gets a virtual name and another ip address that clients would then connect to.
The current code I have will try to connect to NodeName\instanceName which obviously will not work on the cluster. Instead I need to programmatically find the SQL cluster virtual name that this node belongs to and connect to that instead.
I thought I might be able to get this information from the MSCluster_Cluster WMI class, but that will only get me the cluster virtual name, not the SQL cluster virtual name.
With this code:
using System.Management;
ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\MSCluster", "SELECT * FROM MSCluster_Resource");
foreach (ManagementObject queryObj in searcher.Get())
{
Console.WriteLine("Name: {0}", queryObj["Name"]);
}
I can see my SQL Cluster Name (2008CLUSTERSQL) as two of the outputs:
Name: SQL IP Address i (2008CLUSTERSQL)
Name: SQL Network Name (2008CLUSTERSQL)
Will this help? I guess you can extract the name of out it?
I got this code from WMI Code Creator (http://www.microsoft.com/downloads/details.aspx?FamilyID=2cc30a64-ea15-4661-8da4-55bbc145c30e&displaylang=en), a very useful tool to browse different WMI namespaces/classes/properties.
Could you use a WMI query with the mscluster WMI classes?
http://technet.microsoft.com/en-us/library/cc780572(WS.10).aspx
http://blogs.msdn.com/clustering/archive/2008/01/08/7024031.aspx
By query I mean interrogate all the cluster's resources/groups to locate the SQL Server network name.