Matheus Paiva mapaiva

Type “google.com” into you browser and hit enter

What happens next?

^ I haven’t done any interviewing for a while but I went through a period of growth in one of the companies I worked for where we were feverishly expanding the development team, so we had to be a little more systematic in our approach to interviewing. Instead of just having an open conversation with candidates to see where it led (which is what I’d previously done in such situations), I wound up preparing a ‘standard’ set of questions. It took a few goes, but eventually I settled on a favourite question for the technical portion of the interview:

^ When I pull up my favourite Internet browser, type “google.com” into the address bar, and press return, what happens?

The standard names for indexes in PostgreSQL are:

{tablename}_{columnname(s)}_{suffix}

where the suffix is one of the following:

pkey for a Primary Key constraint;

key for a Unique constraint;

excl for an Exclusion constraint;

idx for any other kind of index;

Libvirt

yum group install -y "Development Tools"
yum -y install qemu-kvm libvirt virt-install bridge-utils libvirt-devel  libxslt-devel libxml2-devel libvirt-devel libguestfs-tools-c

echo "net.ipv4.ip_forward = 1"|sudo tee /etc/sysctl.d/99-ipforward.conf
sysctl -p /etc/sysctl.d/99-ipforward.conf

This is unmaintained, please visit Ben-PH/spacemacs-cheatsheet

Useful Spacemacs commands

SPC q q - quit
SPC w / - split window vertically
SPC w - - split window horizontally
SPC 1 - switch to window 1
SPC 2 - switch to window 2
SPC w c - delete current window

This gist has been moved to its own Github repo, so it's easier to contribute with additions and corrections. Please open a PR there if you see any mistake, I don't track comments on here as there's no notification system for gists AFAIK. Thanks.

Tabs and Windows

Function	Shortcut
Previous Tab	`⌘`+ `Left Arrow`
Next Tab	`⌘`+ `Right Arrow`
Go to Tab	`⌘` + `Number`

JOSE - JWT Usage Examples

JOSE is a comprehensive set of JWT, JWS, and JWE libraries.

Installation

go get github.com/SermoDigital/jose

Start Kafka service

The following commands will start a container with Kafka and Zookeeper running on mapped ports 2181 (Zookeeper) and 9092 (Kafka).

docker pull spotify/kafka
docker run -d -p 2181:2181 -p 9092:9092 --env ADVERTISED_HOST=kafka --env ADVERTISED_PORT=9092 --name kafka spotify/kafka

Why Spotify?

ADVERTISTED_HOST was set to kafka, which will allow other containers to be able to run Producers and Consumers.

	[*]
	indent_style = space
	indent_size = 2
	continuation_indent_size = 4
	end_of_line = lf
	charset = utf-8
	trim_trailing_whitespace = true
	insert_final_newline = true

	[*.md]

	syntax on
	set ruler " Show the line and column numbers of the cursor.
	set formatoptions+=o " Continue comment marker in new lines.
	set textwidth=0 " Hard-wrap long lines as you type them.
	set modeline " Enable modeline.
	set esckeys " Cursor keys in insert mode.
	set linespace=0 " Set line-spacing to minimum.
	set nojoinspaces " Prevents inserting two spaces after punctuation on a join (J)
	" More natural splits
	set splitbelow " Horizontal split below current.

	# vi: set ft=dockerfile :

	FROM docker.io/ubuntu:16.04
	MAINTAINER Kazuhisa Hara <[email protected]>

	ENV TZ="JST-9" \
	DEBIAN_FRONTEND="noninteractive"

	RUN apt-get update && \
	apt-get install -y curl --no-install-recommends