title: Capistrano::ConnectionError , SocketError: getaddrinfo - on cap deploy
body: <p>Trying to make 'FILTER=app cap deploy', but getting this error.
  It raises on one notebook, but another deploys successfully.</p>
  
  <p>What it could be?</p>
  
  <p>options: os-x, rails, mongo, ec2, rubber.</p>
  
  <pre><code>[deploy:update_code] exception while rolling back: Capistrano::ConnectionError, connection failed for: app.uncoverage.com (SocketError: getaddrinfo: nodename nor servname provided, or not known) connection failed for: app.uncoverage.com (SocketError: getaddrinfo: nodename nor servname provided, or not known) Vyacheslavs-MacBook-Air:uncoverage vekozlov$ git reset --hard HEAD
  </code></pre>
  
  <p>UPD
  I added hosts to /etc/hosts and it works fine.</p>