jQuery's deferred objects behave somewhat like standard promises, but not really. One of many subtle differences is that there...
To upload a file via AJAX (e.g. from an ) you need to wrap your params in a FormData object.
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 The maintenance mode is enabled on all application server as soon as the file /public/system/maintenance.html is present. Installation
You login to a Linux server with a performance issue: what do you check in the first minute? uptime
You know that layouting HTML e-mails is terrible. For more fun, check Litmus' list of top 10 e-mail...
The nokogiri gem provides different packages for several platforms. Each platform-specific variant ships pre-built binaries of libxml2, e.g...
E-mails are usually encoded using Quoted Printable. Here is how to decode or encode such strings. You probably know...
You can use proxy_hide_header in different contextes: Syntax: proxy_hide_header field; Default: — Context: http, server, location
As we get an exception notification, when a cron job fails, we wish to have the full backtrace in this...
You can use mail-tester.com to check your application's e-mails for issues that might cause e-mails to be...
You can configure a stat socket for haproxy in the global section of the configuration file: global daemon
Note This card does not reflect the current state of lazy loading technologies. The native lazy attribute could be used...
Sometimes you just want to have a small web server that serves files to test something. Serve the current directory...
While you can use Apache as a reverse proxy, it tries to be too smart. Try nginx instead, it's...
Nobody needs HTML e-mails. However, you occasionally might have to write an HTML message for some weird reason. Here...
When you make a simple TCP connection to a remote server (like telnet), your client won't normally notice when...
You want to test your 1GE or 10GE internet uplink? We needed to ensure we have full 10GE to the...
Our applications not only need to be functional, they need to be fast. But, to quote Donald Knuth, premature optimization...
When working with PostgreSQL, you can use pgAdmin as a GUI. While you can do most things just like on...
This is how you regain disk space from OpenStack instances if you are using kvm and qcow. If your instance...