Error can not start ldap

error can not start ldap

I had the same issue and my issue was that the ports were already open by another service. Try specifying other ports when starting the. Cannot contact LDAP Server: If you receive a "Cannot connect to the LDAP Server" error message, try to connect using the LDAP Server IP address. You should also. If you are seeing this error, or something similar, start ldap as the zimbra user in debug node. ldap stop zmlocalconfig -e ldap_starttls_supported=1 sudo /opt/. error can not start ldap

LDAP Unable to start openldap for windows

I watched youtube online as reference to install openldap on windows,

I also followed the tutorial on

5c9eec00 using config directory slapd.d, error 0 config file testing succeeded

there is this part "Conversion to slapd.d is trivial. After modifying the slapd.conf file as required simply create a new directory/folder called slapd.d. Open a command line (dos box for us oldies), navigate to c:\OpenLDAP (or wherever you put your installation) and enter:" in which I don't understand, what do I need to configure in slapd.conf

How do I get my ldapserver to start running ?

asked Mar 30, error can not start ldap, 2019 at 4:34

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When the LDAP service is started it stops immediately with an error. The Windows event log may present one of the following errors under the "System" event log:

  1. The MailEnable LDAP Service service terminated with the following service-specific error: The directory cannot be removed.
  2. The MailEnable LDAP Service service terminated with service-specific error: The media is write protected.


Error 1:

This occurs if the server already has a service using the LDAP default port (port 389). The MailEnable LDAP service is unable to bind to the port, so exits.

Error 2:

The LDAP "slapd.conf" contains invalid paths in the top "include" lines to a drive that is either write protected or is no longer online.


Error 1 Resolution:

To resolve you can either stop the other application that is using the port, or you can configure the LDAP service to bind to another port. In order to change the port number for the LDAP service you will need to add the following registry key, changing the number the port you wish to listen on:

For 32bit Windows:
[HKEY_LOCAL_MACHINE\SOFTWARE\Mail Enable\Mail Enable\Services\LDAP\Parameters]

For 64bit Windows:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mail Enable\Mail Enable\Services\LDAP\Parameters]

You will need to stop and start the LDAP service to have changes be effective.

Error 2 Resolution:

  1. Navigate within the MailEnable installation path to the "LDAP" folder.
  2. Locate the "slapd.conf" file and open in Windows Notepad
  3. Edit the "include" lines so that they point to the active MailEnable LDAP folder, error can not start ldap.
  4. Save the file and start the LDAP service.

Support portal

Message ID: 0x40000021

When do you see this error?

Usecase scenario to be defined

Why the error occurred?

LDAP authentication failure can occur either due to general authentication failures such as incorrect user name and password entries or internal authentication failures caused by any of the following:

  • connection error
  • connection timeout
  • syntax error
  • search attribute error
  • communication error

In any case, the following message is displayed at the printer:

Enrollment failed. Unable to connect to LDAP Server. Contact your IT support.

When a user reports that they cannot log in to the printer, even  though they are typing the correct password, the administrator can  review system logs to find out what is causing the authentication issue.

What next?

The message indicates that the error occurred during a connection  attempt to the LDAP server, error can not start ldap, which might be due to an incorrect login  details, error can not start ldap. It can also be caused by a mis-configured parameter in the  Authentication profile, error can not start ldap, or missing user information.

To troubleshoot LDAP connection failures, error can not start ldap the following procedure:

Step 1: Verify authentication settings.

1. Ensure the settings configured under Authentication profile in Web Admin application are accurate.

Step 2: Verify connectivity to TCP/IP ports that are used by AD/LDAP.

We runtime error r6034 autocad use PortQry tool supported by Microsoft for this purpose.

Portqry is a command-line utility that system error 1722 rpc server unavailable troubleshoot TCP/IP connectivity issues. The utility reports the port status of target TCP and UDP ports on a remote computer.
  1. Download the PortQry tool from
  2. Follow the steps to install the tool in your system.
  3. Go to the command prompt and execute following command: portqry -n <server name or domain name or IP address> -e <port> -p tcp
  4. Portqry responds with any of the following status:
    1. Listening: Received a response from the target port on the target system.
    2. Not Listening: No process is listening to the target port on the target system.
    3. Filtered: Did not receive a request from the target port. A process may or may not be listening to the port.

Step 3: Check the port exceptions on the firewall settings

  1. If the PrtQry tool resulted as "Not Listening", check the Inbound and Outbound exceptions set for the port on firewall settings.

yum install openldap* migrationtools* -y

I do this work

Successfully install this

But when I start

I see the error
systemctl start slapd
Job for slapd.service failed because the control process exited with error code. See "systemctl status slapd.service" and "journalctl -xe" for details.

● slapd.service - OpenLDAP Server Daemon
Loaded: loaded (/usr/lib/systemd/system/slapd.service; enabled; vendor preset: disabled)
Error can not start ldap failed (Result: exit-code) since Mon 2019-09-30 23:51:33 +06; 25s ago
Docs: man:slapd
Process: 21644 ExecStart=/usr/sbin/slapd -u ldap -h ${SLAPD_URLS} $SLAPD_OPTIONS (code=exited, status=1/FAILURE)
Process: 21614 ExecStartPre=/usr/libexec/openldap/ (code=exited, status=0/SUCCESS)

How can I solve this problem

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ISMServ.exe does not start when a domain controller starts

  • Article
  • 2 minutes to read

This article provides a workaround for an issue where the IsmServ service doesn't start correctly when a proftpd error opening scoreboard controller starts.

Applies to:   Windows Server 2019, Windows Server 2016, Windows Server 2012 R2
Original KB number:   4530043


When you start a Windows Server domain controller (DC), it does not start correctly. When you check the System log in Event Viewer, you find the following entry for Event ID 7023:

Log Name: System
Source: Service Control Manager​
Event ID: 7023​
Level: error can not start ldap Error​
The IsmServ service terminated with the following error:
The specified server cannot perform the requested operation.​
Event Xml:​
<Event xmlns="">
<Data Name="param1">IsmServ</Data>​
<Data Name="param2">%%58</Data>​

This event includes the following data parameters:

  • The param1 parameter value, IsmServ: This represents the Intersite Messaging service (ISMserv.exe).
  • The param2 parameter value, 58: This maps to the ERROR_BAD_NET_RESP message ("The specified server cannot perform the requested​ operation").

To collect more information about this problem, you can configure LDAP Event Tracing for Windows (ETW) to windows stop error 07b at system startup. (For details about how to do this, see More information.) After you restart the DC, you should see the following lines in the log:

[Microsoft-Windows-LDAP-Client/Debug] Message=LDAP connection 0xec4b08a8 successfully resolved 'localhost' using GetHostByName.
[Microsoft-Windows-LDAP-Client/Debug] Message=gethostbyname collected 2 records for ''[Microsoft-Windows-LDAP-Client/Debug] Message=LdapParallelConnect called for connection 0xec4b08a8 with timeout 45 sec 0 usec. Total count is 2.
[Microsoft-Windows-LDAP-Client/Debug] Message=No response yet.
[Microsoft-Windows-LDAP-Client/Debug] Message=LdapParallelConnect finished for connection 0xec4b08a8. Time taken was 1 sec. Original timeout specified was 45 sec 0 usec.
[Microsoft-Windows-LDAP-Client/Debug] Message=LdapConnect failed to open connection 0xec4b08a8, error = 0x5b.
[Microsoft-Windows-LDAP-Client/Debug] Message=LdapConnect thread 0xce0 has connection 0xec4b08a8 as down.

In this event, the value of the error parameter (0x5b or 91) maps to the LDAP_CONNECT_ERROR message.


ISMServ depends on Active Directory Domain Services (AD DS). However, during system startup, ISMServ may try to create an LDAP connection to AD DS before AD DS finishes coming online. When this happens, the LDAP port (TCP port 389) is not available when ISMServ tries to connect. Because the port is not listening, ISMServ determines that the connection has failed without waiting for the connection time-out period (45 seconds). Therefore, ISMServ does not start.


To immediately work around this problem, manually restart ISMServ.

To avoid this problem in the future, use the Services and Applications MMC snap-in to change the Startup Type of ISMServ from Automatic to Automatic (Delayed Start).

More information

To configure LDAP ETW, follow these steps:

  1. Use Registry Editor to create the following registry subkey:

  2. Open an elevated Command Prompt window, and run the following php apache 500 error the computer.

  3. After the computer starts, run the following command at an elevated command prompt:

  4. When you finish collecting data, run the following command at an elevated command prompt to stop tracing:


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.


How to turn on debug logging of the LDAP client (Wldap32.dll)


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