In production, you (or your ops team) should configure a maximum number of bytes that Redis can use to store...

Connect to your IMAP server. If you have SSL enabled: openssl s_client -connect your-server:993 if your server...

When you have a localized website, you may want to redirect users to their preferred language when they visit the...

fake_stripe spins up a local server that acts like Stripe’s and also serves a fake version of Stripe.js...

When dealing with time zones in Rails, there is one key fact to keep in mind: Rails has configurable time...

When building a form with a file select field, you may want to offer your users a live preview before...

Instead of using this hack you might want to use MariaDB 10.x which can work with both old and...

Tool to show you which gems are slow to load: ➜ git:(master) ✗ bundle exec bumbler [################################################# ] (49/65) travis-lint...

jQuery's deferred objects behave somewhat like standard promises, but not really. One of many subtle differences is that there...

Enter any command into explainshell and it will explain it to you: split into separate commands (if present), with each...

To upload a file via AJAX (e.g. from an ) you need to wrap your params in a FormData object.

Stackprof is a sampling call-stack profile for Ruby 2.1+. Instead of tracking all method calls, it will simply collect...

If you want to configure your nginx to drop connections to a specific location, you can do so by responding...

A HTTP 302 Found redirect to PATCH and DELETE requests will be followed with PATCH or DELETE. Redirect responses to...

To install gems Bundler needs to be able to talk to https://api.rubygems.org. If you are behind a proxy you...

Geordi is now (partially) tested with Cucumber. Yay! geordi cucumber supports a new @solo tag. Scenarios tagged with @solo...

Note Maintenance mode is enabled on application server as soon as the file /public/system/maintenance.html is present. Note that the servers...

You login to a Linux server with a performance issue: what do you check in the first minute? uptime

rack-mini-profiler is a powerful Swiss army knife for Rack app performance. Measure SQL queries, memory allocation and CPU...

Remove some old binaries (commands still exist in geordi) and mark others as deprecated Rewrite deploy command to support...

When you're using feature branches, they will stack up if you don't delete them after the merge to...

The nokogiri gem provides different packages for several platforms. Each platform-specific variant ships pre-built binaries of libxml2, e.g...

As we get an exception notification, when a cron job fails, we wish to have the full backtrace in this...