Risolvere un nome host da un indirizzo IP in Ruby

By Giovanni Cappellotto | Published: February 26, 2010


Ecco un altro promemoria: come risolvere un nome host da un indirizzo IP in Ruby.

Per eseguire l’operazione viene in nostro aiuto la class Resolv.

Esempio (usando Rails):

hostname = Resolv.new.getname(request.env['REMOTE_ADDR'])

Risorse utili:
http://ruby-doc.org/stdlib/libdoc/resolv/rdoc/index.html

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