The following translation has been prepared by Intelligent Software Solutions Pvt. Ltd. and the LDAP group of Cyber Solutions Inc., hosted by IPA (Information-technology Promotion Agency, Japan). It is still under development, and the version below is a draft. We welcome feedback on terminologies and translated words. In the event that there are technical doubts regarding the contents, please refer to the original RFC text provided by the IETF. We assume full responsibility for any inaccuracies in the translated text.

RFC2251 Lightweight Directory Access Protocol (v3) *(original text)
RFC2252 Lightweight Directory Access Protocol (v3): Attribute Syntax Definitions *(original text)
RFC2253 Lightweight Directory Access Protocol (v3): UTF-8 String Representation of Distinguished Names *(original text)
RFC2254 The String Representation of LDAP Search Filters *(original text)
RFC2255 The LDAP URL Format *(original text)
RFC2256 A Summary of the X.500(96) User Schema for use with LDAPv3 *(original text)

Note:each chapter of the Japanese-translated RFC has a link to the original text
Clickherefor the link to LDAP Resources