To use OpenLDAP with Matrix’s Synapse homeserver software, you can customize this YAML file to insert in the Synapse configuration file:

modules:
  - module: "ldap_auth_provider.LdapAuthProviderModule"
    config:
      enabled: true
      uri: "ldap://ldap"
      start_tls: false
      base: "ou=people,dc=example,dc=com"
      attributes:
        uid: "uid"
        mail: "mail"
        name: "cn"
        bind_dn: "uid=admin,ou=people,dc=example,dc=com"
        bind_password: "password"
        filter: "(objectClass=person)"

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