avinvarghese

Red Hat Security: Securing Containers & OpenShift (DO425)

Last update: Tue Jan 14 23:15:49 UTC 2020 by @luckylittle

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Objectives

1. Understand, identify, and work with containerization features
2. Deploy a preconfigured application and identify crucial features such as namespaces, SELinux labels, and cgroups

avinvarghese

#Introduction

Developing Chrome Extensions is REALLY fun if you are a Front End engineer. If you, however, struggle with visualizing the architecture of an application, then developing a Chrome Extension is going to bite your butt multiple times due the amount of excessive components the extension works with. Here are some pointers in how to start, what problems I encounter and how to avoid them.

Note: I'm not covering chrome package apps, which although similar, work in a different way. I also won't cover the page options api neither the new brand event pages. What I explain covers most basic chrome applications and should be enough to get you started.

Table of Contents

1. Understand the Chrome Architecture
2. Understand the Tabs-Extension Relationship
3. Picking the right interface for the job

avinvarghese

• Install
• Shell exports
• Directory explanations
• Automatic Imports
• Private repo access
• Guard (automatic go run)
• Godo
• Spurious
• AWS SDK with Go (inc. some old possibly broken examples)
• Build and Compilation

avinvarghese

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

avinvarghese

# basic pfctl control
# ==
# Related: http://www.OpenBSD.org
# Last update: Tue Dec 28, 2004
# ==
# Note:
# this document is only provided as a basic overview
# for some common pfctl commands and is by no means
# a replacement for the pfctl and pf manual pages.

avinvarghese

@mixin box-shadow($top, $left, $blur, $color, $inset: false) {
  @if $inset {
    -webkit-box-shadow:inset $top $left $blur $color;
    -moz-box-shadow:inset $top $left $blur $color;
    box-shadow:inset $top $left $blur $color;
  } @else {
    -webkit-box-shadow: $top $left $blur $color;
    -moz-box-shadow: $top $left $blur $color;
    box-shadow: $top $left $blur $color;
  }

avinvarghese

#!/bin/bash

# Configuration for the script
POSTFIX_CONFIG=/etc/postfix/main.cf
POSTFIX_SASL=/etc/postfix/sasl_passwd

function confirm () {
  read -r -p "${1:-Are you sure? [Y/n]} " response
  if [[ $response == "" || $response == "y"  || $response == "Y" ]]; then
    echo 0;

avinvarghese

openssl s_client -crlf -connect imap.gmail.com:993
tag login user@gmail.com passwordhere
tag list "" "*"
tag select "inbox"
tag fetch 1:3 body[header]
tag fetch 3 body[header]
tag fetch 3 body[text]
tag fetch 2 all
tag fetch 2 fast
tag fetch 2 full

avinvarghese

root@OpenWrt:~# cat /etc/config/network
config 'interface' 'loopback'
	option 'ifname' 'lo'
	option 'proto' 'static'
	option 'ipaddr' '127.0.0.1'
	option 'netmask' '255.0.0.0'

config 'interface' 'lan'
	option 'ifname' 'eth0.1'
	option 'type' 'bridge'

avinvarghese

# Create specified number of articles for Hugo benchmarks

from datetime import datetime
import random
import string
from sys import argv

def generateWord():
    length = random.randint(1, 10)
    word = ''.join(random.choice(string.letters) for _ in range(length))