rmetzler

2019-04-30 20:35:04.933+0000 WARN [io.netty.channel.AbstractChannelHandlerContext] An exception 'java.lang.OutOfMemoryError: Java heap space' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
2019-04-30 20:35:04.933+0000 WARN [io.netty.channel.AbstractChannelHandlerContext] An exception 'java.lang.OutOfMemoryError: Java heap space' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
2019-04-30 20:35:04.935+0000 ERROR [o.n.b.r.DefaultBoltConnection] Unable to close pack output of bolt session 'bolt-181'.
java.lang.NullPointerException
        at org.neo4j.bolt.v1.transport.ChunkedOutput.close(ChunkedOutput.java:231)
        at org.neo4j.bolt.runtime.DefaultBoltConnection.close(DefaultBoltConnection.java:313)
        at org.neo4j.bolt.runtime.DefaultBoltConnection.processNextBatch(DefaultBoltConnection.java:242)
        at org.neo4j.bolt.runt

rmetzler

function faz() {
  az account set --subscription $(az account list -o table | fzf | cut -c '62-98')
  az account show
}

rmetzler

##TCP FLAGS##

Unskilled Attackers Pester Real Security Folks
==============================================
                     TCPDUMP FLAGS
Unskilled =  URG  =  (Not Displayed in Flag Field, Displayed elsewhere) 
Attackers =  ACK  =  (Not Displayed in Flag Field, Displayed elsewhere)
Pester    =  PSH  =  [P] (Push Data)
Real      =  RST  =  [R] (Reset Connection)
Security  =  SYN  =  [S] (Start Connection)

rmetzler

#!/bin/bash

join -a 1 -1 1 -2 2 \
<(kubectl top node | sed -e 's/NAME/NODE/') \
<( \
  join -1 1 -2 1 \
    -o 1.1,2.7,1.2,1.3 \
    <(kubectl top pod) \
    <(kubectl get pod -o wide) \
    | sed -e 's/NAME/POD/' \

rmetzler

function wait_for_http_200_ok(){
    URL="$1"
    timeout="$((SECONDS+60))"
    while true; do
        HTTP_CODE=$( curl --silent --write-out %{http_code} --output /dev/null ${URL} )
        [[ "200" = "$HTTP_CODE" ]] && break
        [[ "${SECONDS}" -ge "${timeout}" ]] && echo "timed out waiting for ${URL}" && exit 1
        sleep 1
    done
}

rmetzler

#!/bin/bash
screen ~/Library/Containers/com.docker.docker/Data/vms/0/tty

rmetzler

1. screen ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/tty
2. when done use CTRL-A CTRL-\ and then y (for yes) to exit

Alternative method: 

1. docker run -it --privileged --pid=host debian nsenter -t 1 -m -u -n -i sh

rmetzler

#!/usr/bin/env ruby

require 'socket'
require 'openssl'
require 'json'

host = 'kubernetes'
metrics = '/apis/metrics.k8s.io/v1beta1'

sock = TCPSocket.new host, 443

rmetzler

#!/bin/sh
#
# Setup a work space called `work` with two windows
# first window has 3 panes. 
# The first pane set at 65%, split horizontally, set to api root and running vim
# pane 2 is split at 25% and running redis-server 
# pane 3 is set to api root and bash prompt.
# note: `api` aliased to `cd ~/path/to/work`
#
session="work"

rmetzler

#
# Acts as a nginx HTTPS proxy server
# enabling CORS only to domains matched by regex 
# /https?://.*\.mckinsey\.com(:[0-9]+)?)/
#
# Based on: 
# * http://blog.themillhousegroup.com/2013/05/nginx-as-cors-enabled-https-proxy.html
# * http://enable-cors.org/server_nginx.html
#
server {