How can you find the nearest Arduino Yun -

imagine each office has arduino yun , want control arduino yun closest (so in same office in). how can find arduino yun without specifying in office are?

in summary: want find nearest arduino yun phone (preferably javascript).

is possible?

you asking specific question broad question, how closest node connected network if have no control on these nodes?

i guess can't otherwise able information on neighbours disregarding privacy.

if have control on nodes maybe use gps location thoruhg gps module, or evaluate ip location, or estimate ping time? mean nearest?