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#!/bin/bash

HTTPADDR=http://acraiz.icpbrasil.gov.br/credenciadas/CertificadosAC-ICP-Brasil/ACcompactado.zip
DEST=/etc/ssl/certs/icp-brasil

mkdir -p ${DEST}
cd ${DEST}
rm -f *.crt
rm -f *.zip

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A Guide to Encrypting Files with Mac OS X

This guide will demonstrate the steps required to encrypt and decrypt files using OpenSSL on Mac OS X. The working assumption is that by demonstrating how to encrypt a file with your own public key, you'll also be able to encrypt a file you plan to send to somebody else using their private key, though you may wish to use this approach to keep archived data safe from prying eyes.

Too Long, Didn't Read

Assuming you've already done the setup described later in this document, that id_rsa.pub.pcks8 is the public key you want to use, that id_rsa is the private key the recipient will use, and secret.txt is the data you want to transmit…

Encrypting

$ openssl rand 192 -out key

$ openssl aes-256-cbc -in secret.txt -out secret.txt.enc -pass file:key

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library(readxl)
library(readr)
library(tidyverse)
library(lubridate)
library(rsiconfi)

arquivo_geral <- read_excel("HIST_PAINEL_COVIDBR_30jun2020.xlsx", 
                                            col_types = c("text", "text", "numeric", 
                                                          "text", "numeric", "numeric", "numeric", 
                                                          "date", "numeric", "text", "numeric", 

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library(readr)
library(tidyverse)
library(data.table)

library(geobr)
library(cartogram)
library(sf)

library(colorspace)

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#!/bin/sh
echo "iPhone:"
curl -I -H "User-Agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_2 like Mac OS X; nl-nl) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8H7 Safari/6533.18.5" $1
echo "Desktop:"
curl -I -H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3" $1

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name: Security audit
on:
  push:
    paths:
      - '**/Cargo.toml'
      - '**/Cargo.lock'
jobs:
  security_audit:
    runs-on: ubuntu-latest
    steps:

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EDIT: go to https://golang.org/, skip the rest of this doc.

Quick Tips for Fast Code on the JVM

I was talking to a coworker recently about general techniques that almost always form the core of any effort to write very fast, down-to-the-metal hot path code on the JVM, and they pointed out that there really isn't a particularly good place to go for this information. It occurred to me that, really, I had more or less picked up all of it by word of mouth and experience, and there just aren't any good reference sources on the topic. So… here's my word of mouth.

This is by no means a comprehensive gist. It's also important to understand that the techniques that I outline in here are not 100% absolute either. Performance on the JVM is an incredibly complicated subject, and while there are rules that almost always hold true, the "almost" remains very salient. Also, for many or even most applications, there will be other techniques that I'm not mentioning which will have a greater impact. JMH, Java Fligh

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Using Locust.io with Grafana

On your locust master server:

• Install and configure Graphite. Follow a good tutorial
• Install and configure Grafana: tutorial

Use logra.py on your locust test file. See locustfile.py.

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Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

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Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

• http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

• Does the design expect failures to happen regularly and handle them gracefully?
• Have we kept things as simple as possible?