dotnet/runtime

Linux System.DirectoryServices.Protocols: does the library support multiple server connection?

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#100,007 opened on Mar 20, 2024

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 (4 comments) (1 reaction) (0 assignees)C# (5,445 forks)batch import
area-System.DirectoryServiceshelp wanted

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Description

If I create a connection and try to send request from Windows computer, then shut down the dc1 and resend the request it will succeed. I assume it will use the dc2.

var ldi = new LdapDirectoryIdentifier(new [] { "dc1.domain.com",  "dc2.domain.com" }, 389, false, false);
var conn = new LdapConnection(ldi, new NetworkCredential("user", "password")) 
{
    SessionOptions = {
      ProtocolVersion = 3
    }, 
    AuthType = AuthType.Basic
};

var req = new SearchRequest("", "(objectType=*)", SearchScope.Base, "defaultNamingContext");
conn.SendRequest(req);

If the same code executes on Linux machine it will fail with System.DirectoryServices.Protocols.LdapException: The operation was aborted because the client side timeout limit was exceeded. Does it depend on OpenLDAP library? Can I achieve the same result on Linux?

Contributor guide

Research direction
Investigate why LdapConnection with multiple servers fails on Linux but succeeds on Windows, focusing on OpenLDAP library behavior and session handling.
Tech stack
csharp
Domain
backendapi
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
.NETLDAP
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60