Pré-requis:
- Installer OpenLDAP server
- Installer OpenSSH server avec support LDAP

Mise en place du schema OPENSSH-LPK

# nano /etc/ldap/schema/openssh-lpk.schema

Contenu du schema:

# octetString SYNTAX
attributetype ( 1.3.6.1.4.1.24552.500.1.1.1.13 NAME 'sshPublicKey' 
        DESC 'MANDATORY: OpenSSH Public key' 
        EQUALITY octetStringMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.40 )

# printableString SYNTAX yes|no
objectclass ( 1.3.6.1.4.1.24552.500.1.1.2.0 NAME 'ldapPublicKey' SUP top AUXILIARY
        DESC 'MANDATORY: OpenSSH LPK objectclass'
        MAY ( sshPublicKey $ uid ) 
        )

Rajouter le schema dans /etc/ldap/slapd.conf

# nano /etc/ldap/slapd.conf

include         /etc/ldap/schema/openssh-lpk.schema