npearce

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

johnhw

### JHW 2018
import numpy as np
import umap



# This code from the excellent module at:
# https://stackoverflow.com/questions/4643647/fast-prime-factorization-module
    
import random

deviantony

Portainer compose deployment with admin password preset

This file aims to explain how to deploy Portainer inside a compose file with the admin password already set.

Generate the admin password

For this example, we'll use the password superpassword.

Use the following command to generate a hash for the password:

fefore

filter {
  if [type] == "elb-l4" {
    grok {
      match => [ "message", "%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE:elb} %{IP:clientip}:%{INT:clientport:int} (?:(%{IP:backendip}:?:%{INT:backendport:int})|-) %{NUMBER:request_processing_time:float} %{NUMBER:backend_processing_time:float} %{NUMBER:response_processing_time:float} (?:-|%{INT:elb_status_code:int}) (?:-|%{INT:backend_status_code:int}) %{INT:received_bytes:int} %{INT:sent_bytes:int} \"%{ELB_REQUEST_LINE}\" \"(?:-|%{DATA:user_agent})\" (?:-|%{NOTSPACE:ssl_cipher}) (?:-|%{NOTSPACE:ssl_protocol})" ]
    }
    date {
      match => [ "timestamp", "ISO8601" ]
    }
    mutate {
      remove_field => [ "message", "timestamp" ]

oznu

QEMU + Ubuntu ARM aarch64

These are the steps I used to get Ubuntu ARM aarch64 running with QEMU on OSX.

Get Ubuntu Image and QEMU EFI:

wget https://cloud-images.ubuntu.com/releases/16.04/release/ubuntu-16.04-server-cloudimg-arm64-uefi1.img
wget https://releases.linaro.org/components/kernel/uefi-linaro/latest/release/qemu64/QEMU_EFI.fd

dreikanter

Symmetic encryption

For symmetic encryption, you can use the following:

To encrypt:

openssl aes-256-cbc -salt -a -e -in plaintext.txt -out encrypted.txt

To decrypt:

denji

Moved to git-repository: https://github.com/denji/awesome-http-benchmark

Tools

Located in alphabetical order (not prefer)

• ab – slow and single threaded, written in C
• apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
• autocannon – fast HTTP/1.1 benchmarking tool written in Node.js
• baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)

jtan189

import java.security.SecureRandom;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.SecretKeyFactory;
import java.math.BigInteger;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;

/*
 * PBKDF2 salted password hashing.
 * Author: havoc AT defuse.ca