Error 81 = Ldap_set_optionhldap Ldap_opt_protocol_version 3
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Posted on August 5, 2014 by admin Here is a quick way how to test LDAP and LDAPS connectivity with ldp.exe LDAP ===== 1. Run ldp.exe ldp.exe ssl cannot open connection 2. Connection > Connect, dc.mylab.local (Check SSL if you are testing ldaps) 3.
The Certificate Received From The Remote Server Was Issued By An Untrusted Certificate Authority
Connection > Bind, (Administrator/Password/mylab.local), check "Bind with Credentials" 4. View > Tree, BaseDN (DC=mylab,DC=local) 5. Browse > Search
Ldap Error 81
Filter: (&(&(objectClass=User)(objectcategory=person))(objectClass=user)(samaccountname=JDoe)) Check your Policies If you can't connect with ldp.exe by using regular ldap you might have a policy set on your Domain Controller to specifically use LDAPS only. Double check http://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_winother/cannot-connect-to-ldap-ssl-with-error-81-on-server/78999b14-c4fc-46ce-bddc-36307bd156ed the below and these options should allow you to use regular ldap. Local Security Policy Security Settings > Local Policies > Security Options > Domain Controller: LDAP server signing requirements set to none Group Policy Management Editor Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > Security Options > Domain controller: LDAP server signing requirements set http://www.computertechblog.com/using-ldp-exe-to-test-ldap-and-ldaps-connectivity/ to Not Defined. LDAPS ====== If you are getting the below error, chances are that you did not import the SSL certificate from the Domain Controller to the machine trying to do the LDAPS connection, follow the below steps to import the certificate. ld = ldap_sslinit("dc.mylab.local", 636, 1); Error 0 = ldap_set_option(hLdap, LDAP_OPT_PROTOCOL_VERSION, 3); Error 81 = ldap_connect(hLdap, NULL); Server error:
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack http://serverfault.com/questions/439415/active-directory-over-ssl-error-81-ldap-connecthldap-null Overflow the company Business Learn more about hiring developers or posting ads with us https://community.spiceworks.com/topic/1420908-ldaps-not-connecting Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Active directory over error 0 SSL Error 81 = ldap_connect(hLdap, NULL); up vote 1 down vote favorite I have been several day to getting AD over SSL (LDAPS) I followed exactly this guide. I have Active Directory Certifica Service installed (stand alone Root CA), I can request cert, install certs. but whenever I want to test the connection using LDP.exe I got this famous error ld = ldap_sslinit("localhost", 636, 1); Error 0 = ldap_set_option(hLdap, LDAP_OPT_PROTOCOL_VERSION, 3); Error fail to connect 81 = ldap_connect(hLdap, NULL); Server error:
SPONSORED BY MICROSOFT TECHNOLOGY IN THIS DISCUSSION Join the Community! Creating your account only takes a few minutes. Join Now Hi All, We're currently unable to connect to LDAPS port 636 using ldp.exe. I get the following error message when I attempt to connect: "ld = ldap_sslinit("srv-vdc1", 636, 1); Error 81 = ldap_set_option(hLdap, LDAP_OPT_PROTOCOL_VERSION, 3); Error 81 = ldap_connect(hLdap, NULL); Server error: Error <0x51>: Fail to connect to srv-vdc1." This also instantly throws up an event ID: 36869 "The SSL server credential's certificate does not have a private key information property attached to it. This most often occurs when a certificate is backed up incorrectly and then later restored. This message can also indicate a certificate enrollment failure." All servers mentioned below are 2012 R2 with latest updates. The server we're trying to configure is a Domain Controller (DC1), weirdly our other DC (DC2) works perfectly, with an identical certificate (apart from the 'issued to' of-course.) I am requesting the certificate from our CA server, as opposed to importing it manually. The certificate in question, is in the DC1 local computer > personal store. The cert has both Client and Server authentication, is within the valid from-to dates, and also states that "You have a private key that corresponds to this certificate". have tried the 'certutil -repairstore my "serial number"' command with no success. I can confirm that I can successfully connect to standard LDAP 389 with DC1 Any suggestions will be greatly appreciated. Thanks in advance, DG Reply Subscribe View Best Answer RELATED TOPICS: Implementing LDAPS Enabling LADPS Setting up LDAPS on 2003 AD   4 Replies Jalapeno OP Helpful Post gilnov Feb 2, 2016 at 1:12 UTC Things to check off the top of my head: - Is DC1 properly registered in DNS- DC1 has the LDAP server role enabled- LDAP service is running on DC1- Firewall port 636 is open on DC1- LDAP service on DC1 is configured to use port 636- Intervening switch ports are trunked (or at least in the correct VLAN)- Confirm that there is not another valid cert in the computer personal store on DC1 (if so, Windows may select it instead)- Make sure DC1 can communicate with a global catalog server (other than i