This enables the pam_ldap module for authentication and changing passwords, using an LDAP directory. enableldapauth - Use LDAP as an authentication method. You must also specify a server and a base DN (distinguished name) with -ldapserver= and -ldapbasedn=.
To use this option, you must install the nss-pam-ldapd package. enableldap - Turns on LDAP support in /etc/nf, allowing your system to retrieve information about users (for example, their UIDs, home directories, and shells) from an LDAP directory. useshadow or -enableshadow - Use shadow passwords. nisserver= - Server to use for NIS services (broadcasts by default). nisdomain= - NIS domain name to use for NIS services. A domain should almost always be set by hand with the -nisdomain= option. By default, -enablenis uses whatever domain it finds on the network.