Section 3. If a person apprehends that a right of way or other easement in or over his land may be acquired by custom, use or otherwise by any person or class of persons, he may give public notice of his intention to prevent the acquisition of such easement, by causing a copy of such notice to be posted in a conspicuous place upon the premises for six successive days, and such posting shall prevent the acquiring of such easement by use for any length of time thereafter; or he may prevent a particular person or persons from acquiring such easement by causing a copy of such notice to be served upon him or them as provided by law for the service of an original summons in a civil action. Such notice from the agent, guardian or conservator of the owner of land shall have the same effect as a notice from the owner himself. A certificate, by an officer qualified to serve civil process, that such copy has been served or posted by him as above provided, if made upon the original notice and recorded with it, within three months after the service or posting, in the registry of deeds for the county or district in which the land lies, shall be conclusive evidence of such service or posting.