NIS Hosts

Goal

We want to map the following entry in /etc/hosts:

192.168.1.10 www.example.com www

into the following LDAP entry in Penrose:

dn: cn=www.example.com,ou=Hosts,dc=NIS,dc=Example,dc=com
objectClass: device
objectClass: ipHost
ipHostNumber: 192.168.1.10
cn: www.example.com
cn: www

Solution

First we create the source:

<source name="hosts">

    <connection-name>NIS</connection-name>

    <field name="cn" primaryKey="true"/>
    <field name="ipHostNumber"/>

    <parameter>
      <param-name>objectClasses</param-name>
      <param-value>ipHost</param-value>
    </parameter>
    <parameter>
      <param-name>base</param-name>
      <param-value>system/hosts.byname</param-value>
    </parameter>
    <parameter>
      <param-name>scope</param-name>
      <param-value>ONELEVEL</param-value>
    </parameter>

</source>

Then we create the mapping:

<entry dn="cn=...,ou=Hosts,dc=NIS,dc=Example,dc=com">

    <oc>device</oc>
    <oc>ipHost</oc>

    <at name="cn" rdn="true">
      <variable>h.primaryKey.cn</variable>
    </at>
    <at name="cn">
      <variable>h.cn</variable>
    </at>
    <at name="ipHostNumber">
      <variable>h.ipHostNumber</variable>
    </at>

    <source name="h">
      <source-name>hosts</source-name>
      <field name="cn" primaryKey="true">
        <variable>rdn.cn</variable>
      </field>
      <field name="cn">
        <variable>cn</variable>
      </field>
      <field name="ipHostNumber">
        <variable>ipHostNumber</variable>
      </field>
    </source>

</entry>