FreedomBen

# Initial from: https://wiki.archlinux.org/index.php/dnsmasq
# Some from:  https://www.tecmint.com/setup-a-dns-dhcp-server-using-dnsmasq-on-centos-rhel/


#listen-address=::1,127.0.0.1,192.168.2.1

# Cloudflare
#server=1.1.1.1
#server=1.0.0.1
# Cloudflare family block malware

FreedomBen

cat << EOF > check-endianness.c
#include <stdio.h>

int main() {
    int n = 1;

    // little endian if true
    if(*(char *)&n == 1) {
        printf("Little endian\n");
    } else {

FreedomBen

#include <stdio.h>

int main() {
    int n = 1;

    // little endian if true
    if(*(char *)&n == 1) {
        printf("Little endian\n");
    } else {
        printf("Big endian\n");

FreedomBen

# Get your IP address from home or work:  curl -s 'https://api.ipify.org'

# Replace with your IP.  Can get it with the above command if you'd like
# This can also be a CIDR range if you own or trust a block
MY_IP=<ip>

firewall-cmd --zone-public --permanent --remove-service=cockpit
firewall-cmd --zone=public --permanent \
  --add-rich-rule="rule family=\"ipv4\" source address=\"${MY_IP}\" port protocol=\"tcp\" port=\"9090\" accept"
firewall-cmd --reload

FreedomBen

curl -k "https://basic-ocp-demo-basic-ocp-demo-project.apps.cluster1.example.com/healthz"

# or build the curl URL programmatically!
curl -k "https://$(oc get route basic-ocp-demo -o jsonpath="{.spec.host}")/healthz"

FreedomBen

Quick Reference

• Basic structure
  • oc [name]
  • There are some exceptions, like oc help or oc logs <pod> or oc exec
  • Most commands support oc <command> --help
• Common resources (nouns)
  • Pods
  • Deployments
• Services

FreedomBen

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "1"
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"apps/v1","kind":"Deployment","metadata":{"annotations":{},"labels":{"app":"basic-ocp-demo"},"name":"basic-ocp-demo","namespace":"basic-ocp-demo-project"},"spec":{"replicas":1,"selector":{"matchLabels":{"app":"basic-ocp-demo"}},"template":{"metadata":{"labels":{"app":"basic-ocp-demo"}},"spec":{"containers":[{"env":[{"name":"BASIC_OCP_DEMO_ENV","value":"master"}],"image":"quay.io/freedomben/basic-ocp-demo:latest","imagePullPolicy":"Always","name":"basic-ocp-demo","ports":[{"containerPort":4567,"protocol":"TCP"}],"readinessProbe":{"httpGet":{"path":"/healthz","port":4567,"scheme":"HTTP"},"initialDelaySeconds":5,"periodSeconds":1}}]}}}}
  creationTimestamp: "2021-01-08T02:09:21Z"
  generation: 1
  labels:

FreedomBen

---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: basic-ocp-demo
  name: basic-ocp-demo
spec:
  replicas: 1
  selector:

FreedomBen

#
# This module defines some handy functions for use in iex
#
defmodule DebugTools do
  @doc ~S"""
  Cast all the params provided here into an Ecto.Changeset.
  
  This defeats Ecto's whitelist approach so you should never use this in real code!
  It's intended as a debug tool for use in tests of IEx sessions.
  """

FreedomBen

sed -i -e '/printf.*TERMINATED/i \\tprintf("         HACKED!         \\n");' 2048.c