If you want to perform a failover on another haproxy backend server this is the way you should do it...
Brendan Gregg is the Linux performance god. Use the information in this link to find out what ways there are...
Stackprof is a sampling call-stack profile for Ruby 2.1+. Instead of tracking all method calls, it will simply collect...
Chrome has discontinued support for 32-Bit Linux builds and this might break your apt-get update.
If you are on a Linux shell and want to open a file with whatever default application is configured for...
If you want to configure your nginx to drop connections to a specific location, you can do so by responding...
Imagine you have a list you want to render inline on large screens, but stacked on small screens. high
The following sums up all connections (ESTABLISHED, TIME_WAIT, FIN_WAIT, etc.) and sorts it: netstat -n | awk ' $5 ~ /^[0...
Talking with APIs makes more fun using Postman. As an alternative you can also use command line tools like cURL...
Uses FFI and works all relevant operating systems. If you'd try to do it yourself, you'd have to...
RSpec supports a one-liner syntax for setting an expectation on the subject: describe Array do describe "when first created...
Cause logstaglia is so cool you may want to record a video. We're lucky: Logstalgia has a parameter for...
A HTTP 302 Found redirect to PATCH and DELETE requests will be followed with PATCH or DELETE. Redirect responses to...
In JavaScript we often use Immediately Invoked Function Expessions (or IIFEs) to prevent local variables from bleeding into an outside...
To install gems Bundler needs to be able to talk to https://api.rubygems.org. If you are behind a proxy you...
During debugging you might pepper your code with lines like these: console.log('foo = ' + foo + ', bar = ' + bar) I recommend to use...
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
Remove some old binaries (commands still exist in geordi) and mark others as deprecated Rewrite deploy command to support...
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 contexts: Syntax: proxy_hide_header field; Default: — Context: http, server, location
As described by the linked Stackoverflow answer, run these commands: sudo add-apt-repository ppa:git-core/ppa -y