如何使用 C# 获取 Active Directory 中所有域的列表

Question

Can anyone please help me to get all the domains in Active Directory. I have tried many times, but all the programs are listing only the current working domain.

How can I do this?

Answer 1

Domain domain = Domain.GetDomain(new DirectoryContext(DirectoryContextType.Domain, "yourDomain", "username", "password"));

Forest forest = domain.Forest;

DomainCollection domains = forest.Domains;

The above uses the System.DirectoryServices.ActiveDirectory namespace. It'll give you a domain collection containing all the domains that are in the same forest as your given domain.

Answer 2

I had some issues getting LeeMobile's code to work in my case bacause it was trying to find my application's current domain context while running forest.Domains. I was able to get around it by doing something like this.

Forest forest = Forest.GetForest(new DirectoryContext(DirectoryContextType.Forest, "yourForestDomain", "username", "password"));
DomainCollection domains = forest.Domains;

Answer 3

Using DirectorySearcher you can connect and read the structure of one Active Directory, including the structure (organization units, groups, users, computers, domain controllers). In order to connect to a different domain, you would need credentials of that other domain. We had problems in connecting to another domain from a machine that belongs to a different domain than the target one. I'm also curious if that's even possible.

Answer 4

You could also use System.DirectoryServices.ActiveDirectory.Forest.GetCurrentForest().Domains

var domains = Forest.GetCurrentForest().Domains.Cast<Domain>();
foreach (var domain in domains)
{
    Console.WriteLine(domain.Name);
}