为什么异常“在服务器上找不到对象”进入LDAP？

问题描述

我正在使用LDAP服务器。我安装了相同的并尝试从LDAP服务器获取证书。

我收到异常在服务器上找不到对象。服务器连接正常。

我的代码如下：

I am using LDAP server. I installed the same and trying to fetch the certificates from LDAP server.
I am getting the exception "No Object Found on Server". The server connection is coming fine.
My code is as below:

DirectoryEntry rootEntry = new DirectoryEntry("LDAP://NESTIT-283:389");


                 rootEntry.AuthenticationType = AuthenticationTypes.None; //Or whatever it need be
                 DirectorySearcher searcher = new DirectorySearcher(rootEntry);
                 string searchString = "(CN = EFTS-CA-TEST)";
                 var queryFormat = "(&(objectClass=user)(objectCategory=person)(|(SAMAccountName=*{0}*)(cn=*{0}*)(gn=*{0}*)(sn=*{0}*)(email=*{0}*)))";
                 //searcher.Filter = string.Format(queryFormat, searchString);

                 searcher.Filter = searchString;//Search how you want.  Google "LDAP Filter" for more.
                 foreach (SearchResult result in searcher.FindAll())
                 {
                     Console.WriteLine("account name: {0}", result.Properties["samaccountname"].Count > 0 ? result.Properties["samaccountname"][0] : string.Empty);
                     Console.WriteLine("common name: {0}", result.Properties["cn"].Count > 0 ? result.Properties["cn"][0] : string.Empty);
                 }

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