D ▁Version ▁ 3 : ▁PC ▁Eng ines ▁A PU 2 C 2 / AP U 2 C 4 ▁in ▁a ▁ 1 U ▁ 1 9 - inch ▁ra ck - mount ed ▁case ▁with ▁additional ▁SS D ▁ ▁The ▁back - end ▁architecture ▁was ▁described ▁in ▁detail ▁in ▁the ▁September ▁ 2 0 1 5 ▁edition ▁of ▁the ▁Internet ▁Pro tocol ▁Journal ▁ ▁Community ▁ ▁Anyone ▁can ▁volunte er ▁to ▁host ▁a ▁R I PE ▁Atlas ▁pro be . ▁Pro bes ▁are ▁free ▁of ▁charge , ▁low ▁maintenance , ▁and ▁can ▁be ▁plug ged ▁in ▁behind ▁a ▁home ▁router ▁or ▁in ▁a ▁data ▁center . ▁ ▁Organ is ations ▁that ▁want ▁additional ▁R I PE ▁Atlas ▁measurements ▁target ing ▁their ▁network ▁can ▁host ▁a ▁R I PE ▁Atlas ▁anchor . ▁ ▁Tools ▁for ▁visual izing ▁and ▁analyz ing ▁R I PE ▁Atlas ▁measurement ▁data ▁are ▁used ▁by ▁network ▁operators ▁for ▁troubles ho oting ▁and ▁network ▁monitoring . ▁ ▁Open ▁source ▁software ▁tools , ▁written ▁by ▁R I PE ▁Atlas ▁users , ▁are ▁available ▁in ▁the ▁repository ▁for ▁community ▁contributions ▁on ▁GitHub . ▁ ▁Several ▁hundred ▁individuals ▁also ▁support ▁R I PE ▁Atlas ▁as ▁" amb ass adors " ▁by ▁prom oting ▁participation ▁and ▁distrib uting ▁prob es . ▁Organ izations ▁also ▁support ▁R I PE ▁Atlas ▁as ▁spons ors . ▁ ▁Multiple ▁hack ers paces ▁have ▁installed ▁R I PE ▁Atlas ▁prob es ▁and ▁have ▁their ▁own ▁project ▁about ▁displaying ▁the ▁prob es ▁presence . ▁ ▁Research ▁papers ▁ ▁All ▁the