Hadryan

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

Hadryan

#Amazon Elastic Transcoder (ET)
#ET supports presets for transcoding
#http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/preset-settings.html

//Let's put our video file to AWS S3. $region = "eu-west-1";
$folder = "source_videos/"; //init class to work with s3.
$s3 = new AmazonS3(); //get real file path
$real_video_file = str_replace(base_url(), ROOT, $some_file); //generate new unique video name
$unique_string = md5(uniqid() . time());
$video_file = $folder . $unique_string; //send out file to s3 storage

Hadryan

from flask import Flask, request, jsonify, json, abort
from flask_cors import CORS, cross_origin

import pandas as pd

app = Flask(__name__)

cors = CORS(app)
app.config['CORS_HEADERS'] = 'Content-Type'

Hadryan

#list images
docker image ls

#dive into image
docker run --rm -it -v /var/run/docker.sock:/var/run/docker.sock -e DOCKER_API_VERSION=1.37 wagoodman/dive:latest b3ec18f53aed

Hadryan

version: '2'
services:
  graphql-engine:
    image: hasura/graphql-engine:latest
    ports:
      - '80:8080'
    restart: always
    environment:
      HASURA_GRAPHQL_DATABASE_URL: postgres://<rds-user>:<rds-password>@<rds-instance>:5432/<rds-dbname>
      HASURA_GRAPHQL_ACCESS_KEY: mylongsecretaccesskey

Hadryan

"use strict";

// based on unutbu's stackoverflow answer
// https://stackoverflow.com/a/40958702/54829

// which is based on Evan Miller's blog post
// http://www.evanmiller.org/ranking-items-with-star-ratings.html

function sum(array) {
	return array.reduce((accumulator, currentValue) => accumulator + currentValue, 0);

Hadryan

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Hadryan

identify big pods/containers

investigage big files

DST=/mnt
find /var/lib -type f -size +1G -exec ls -lh {} \; | tee  $DST/bigfiles_var_lib_$(date "+%H%M").log
find /var/lib -type f -size +1G -exec ls -lh {} \; | awk '{ print $5 ": " $9 }' | sort -rh > $DST/bigfiles_var_lib_$(date "+%H%M").sorted.log

misbehave processes

Hadryan

# Fail2Ban configuration file
#
# Regexp to catch known malicious bots that are trying
# to break into the server by testing for leaked
# sensitive directories, scripts, files.

[Definition]

badcrawlerstrings = (?:w00tw00t|wootwoot|WootWoot|WooTWooT|muieblackcat|Gh0st|Nessus)
baddirectorystrings = (?:\.\.+|cgi|cgi-bin|cgi-mod|cgi-sys|ods-cgi|scripts|db|phpMyAdmin|phpmyadmin|PHPMYADMIN|pma|PMA|phpadmin|mysql|mysqladmin|myadmin|dbadmin|sqladmin|sql-admin|sqlite|phpmanager|webadmin|wp-admin|wp-content|wp-includes|joomla|onvif|_vti_bin|xampp|\.git|te?mp|bitcoin|wallet)(?:[\d\-_].*?)?(?:/|\s|\\x5C|%%5c|\\x2F|%%2f)

Hadryan

# From https://github.com/github/gitignore/blob/master/Gradle.gitignore
.gradle
/build/

# Ignore Gradle GUI config
gradle-app.setting

# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
!gradle-wrapper.jar