I'd defer to those with more expertise, but my vote is to avoid changing the modifyTimestamp attribute. That attribute should be updated only when an ldapmodify operation is performed. I'm not familiar with the specifications, and perhaps this isn't addressed there. My intuition suggests that it shouldn't be modified by operations that are not directly under the control of the user or administrator. Dan Howard Chu wrote: -- This electronic transmission is strictly confidential to NetIDEAS, Inc. and intended solely for the addressee. It may contain information, which is covered by legal, professional, or other privilege. If you are not the intended addressee, or someone authorized by the intended addressee to receive transmissions on the behalf of the addressee, you must not retain, disclose in any form, copy or take any action in reliance on this transmission. If you have received this transmission in error, please notify us as soon as possible and destroy this message.