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

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# How to sign your custom RPM package with GPG key

# Step: 1
# Generate gpg key pair (public key and private key)
#
# You will be prompted with a series of questions about encryption.
# Simply select the default values presented. You will also be asked
# to create a Real Name, Email Address and Comment (comment optional).
# 
# If you get the following response:

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tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

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-- a quick LUA access script for nginx to check IP addresses against an
-- `ip_blacklist` set in Redis, and if a match is found send a HTTP 403.
--
-- allows for a common blacklist to be shared between a bunch of nginx
-- web servers using a remote redis instance. lookups are cached for a
-- configurable period of time.
--
-- block an ip:
--   redis-cli SADD ip_blacklist 10.1.1.1
-- remove an ip:

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# source: https://trac.ffmpeg.org/wiki/CentosCompilationGuide

yum install autoconf automake gcc gcc-c++ git libtool make nasm pkgconfig zlib-devel

mkdir ~/ffmpeg_sources

cd ~/ffmpeg_sources
curl -O http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
tar xzvf yasm-1.2.0.tar.gz
cd yasm-1.2.0

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# Scan for CVE-2017-0143 MS17-010
# The vulnerability used by WannaCry Ransomware
# 
# 1. Use @calderpwn's script
#    http://seclists.org/nmap-dev/2017/q2/79
# 
# 2. Save it to Nmap NSE script directory
#    Linux - /usr/share/nmap/scripts/ or /usr/local/share/nmap/scripts/
#    OSX - /opt/local/share/nmap/scripts/
# 

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#!/usr/bin/python
from impacket import smb
from struct import pack
import os
import sys
import socket

'''
EternalBlue exploit for Windows 7/2008 by sleepya
The exploit might FAIL and CRASH a target system (depended on what is overwritten)

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install kubernetes 1.6 on centos 7.3

Install kubelet, kubeadm, docker, kubectl and kubernetes-cni

1. Install Yum Repo

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://yum.kubernetes.io/repos/kubernetes-el7-x86_64

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require 'mina/git' # Require mina/git
set :term_mode, nil # Bug in OS X that makes the password promp kinda fishy...

set :domain, 'example.com' # The web servers SSH domain
set :deploy_to, '/home/user/my-site' # Full path to where you want Mina to deploy
set :repository, 'https://USERNAME@bitbucket.org/USERNAME/REPOSITORY.git' # The git repository Mina shall use
set :branch, 'master' # What git branch Mina should get
set :user, 'username' # What username to connect with through SSH
set :current_path, 'www' # What file should be the current version. Probably 'www', 'public_html' or perhaps 'current'. 

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Reference Documentation

https://www.elastic.co/guide/en/x-pack/current/xpack-alerting.html

Composition of a Watcher

• Schedule
• Query
• Condition
• Actions