さくらクラウド(Ubuntu14.04)でnginx, rails unicornを利用した際に以下の様なログが出る場合がある 2015/01/01 12:12:12 [error] 8652#0: *228 connect() failed (111: Connection refused) while connecting to upstream, client: 111.111.111.111, server: 222.222.222.222, request: "GET /entries HTTP/1.1", upstrea…
