Query on LDAP

Question

Hi All,

I want to generate an LDAP CSR request. I have the following text file, which I will save with the .inf extension (i.e., ldap.inf). From the command prompt, I will execute the following command:

certreq -new ldap.inf ldapcsr.req

Once I have the certificate, I will run the following command on the same VM where I generated the CSR request:

certreq -accept C:\Temp\cert.crt

Do I need to include the SAN name ldap.contoso.com? Which of the following is correct? (Please refer the last line in my text file)

_continue_ = "&dns=ldap.contoso.com&dns=dc01.contoso.com&dns=dc02.contoso.com&dns=dc03.contoso.com"

or 

 _continue_ = "&dns=dc01.contoso.com&dns=dc02.contoso.com&dns=dc03.contoso.com"

Are the following lines correctly added in my text file?

Subject = "CN=ldap.contoso.com" ; Replace with the FQDN of the DC 
C = US 
ST = MYST 
L = MYL 
O = Contoso, Inc.

My Text File

;----------------- request.inf -----------------
;----- requested on ALL DCs-----

[Version]

Signature="$Windows NT$

[NewRequest]

Subject = "CN=ldap.contoso.com" ; replace with the FQDN of the DC
C = US
ST = MYST
L = MYL
O = Contoso, Inc.
KeySpec = 1
KeyLength = 2048
; Can be 1024, 2048, 4096, 8192, or 16384.
; Larger key sizes are more secure, but have
; a greater impact on performance.
Exportable = TRUE
MachineKeySet = TRUE
SMIME = False
PrivateKeyArchive = FALSE
UserProtected = FALSE
UseExistingKeySet = FALSE
ProviderName = "Microsoft RSA SChannel Cryptographic Provider"
ProviderType = 12
RequestType = PKCS10
KeyUsage = 0xa0

[EnhancedKeyUsageExtension]

OID=1.3.6.1.5.5.7.3.1 ; Server Authentication
OID=1.3.6.1.5.5.7.3.2 ; Client Authentication

[Extensions]
; If your client operating system is Windows Server 2008, Windows Server 2008 R2, Windows Vista, or Windows 7
; SANs can be included in the Extensions section by using the following text format. Note 2.5.29.17 is the OID for a SAN extension.

2.5.29.17 = "{text}"
_continue_ = "&dns=ldap.contoso.com&dns=dc01.contoso.com&dns=dc02.contoso.com&dns=dc03.contoso.com"

Answer 1

Follow https://learn.microsoft.com/en-us/troubleshoot/windows-server/active-directory/enable-ldap-over-ssl-3rd-certification-authority

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hth

Marcin