Hot answers tagged ruby-on-rails
That is verbose output from the optipng utility for shrinking PNG images. You may suppress this output with the --quiet option. Though probably one of your gems is calling it and you have little control over whether it passes the option.
Close port 3000 in your firewall. Then make sure you start thin in such a way that it is bound only to the localhost. This absolutely prevents inbound connections not originating from the local machine itself. For instance: rails server -b ::1 Or the old IPv4 way: rails server -b 127.0.0.1
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