Jan 222023
 

You have a running ldap server but you want to be able to use ssl.

For this you need:

1-A root CA (certificate authority) installed on the domain controller/ldap server in the computer « root » store

2-A CSR (certificate service request) triggered by the domain controller/ldap server

3-A CSR signed by your root ca thus giving you a certificate to be installed on the domain controller/ldap server in the computer « my » store

4-The root CA installed in the client/user certificate store

Step 1

openssl genrsa -des3 -out ca.key 4096

openssl req -new -x509 -days 3650 -key ca.key -out ca.crt

launch mmc.exe, load the certificate snap-in, select « computer account », choose the « trusted root CA » and import your ca.crt.

Step 2

With notepad, create the below request.inf file (adapt the CN with your server CN).

;----------------- request.inf -----------------

[Version]

Signature="$Windows NT$"

[NewRequest]

Subject = "CN=dc1.acme.com,OU=IT,DC=dc1,DC=acme,DC=com,O=ACME,L=New York,S=New York,C=US"
;
KeySpec = 1
KeyLength = 1024
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 ; this is for Server Authentication

Generate your csr with certreq -new request.inf server.csr.

Step 3

Sign your csr :

openssl x509 -req -days 3650 -in request.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out server.crt

launch mmc.exe, load the certificate snap-in, select « computer account », choose the « MY » store and import your server.crt.

Reboot your DC : your ldap ssl server is now operational

Step 4

On your user/client, launch mmc.exe, load the certificate snap-in, select « user account », choose the « trusted root CA » store and import your ca.crt to allow your user/client to validate the server cert.

 Leave a Reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

(required)

(required)

Ce site utilise Akismet pour réduire les indésirables. En savoir plus sur comment les données de vos commentaires sont utilisées.