Vipul iam-vipul

Kafka Cheat Sheet

Display Topic Information

$ kafka-topics.sh --describe --zookeeper localhost:2181 --topic beacon
Topic:beacon	PartitionCount:6	ReplicationFactor:1	Configs:
	Topic: beacon	Partition: 0	Leader: 1	Replicas: 1	Isr: 1
	Topic: beacon	Partition: 1	Leader: 1	Replicas: 1	Isr: 1

Linux Access Control Lists (ACLs)

This exercise explores the use of Linux ACLs to provide access control over files, with more flexibility than the access control offered by traditional UNIX file permissions.

This exercise explores the use of Linux ACLs to provide access control over files, with more flexibility than the access control offered by traditional UNIX file permissions. It is assumed the student has received instruction, or independent study, in access control policies and ACLs. A description of Linux ACLs can be found at https://wiki.archlinux.org/index.php/Access_Control_Lists

This lab runs in the Labtainer framework, available at http://my.nps.edu/web/c3o/labtainers. That site in- cludes links to a pre-built virtual machine that has Labtainers installed, however Labtainers can be run on any Linux host that supports Docker containers.

Task 1: Review existing file permissions

	# compile the code to generate the binary
	gcc -o myprogram myprogram.c

	# run the progrma
	./myprogram

	# inspect the binary
	objdump -d myprogram

	# try to read through the machine code instructions

	We have to stand with our North Korean allies.
	0 1 1 2 3 5
	5 s 64
	0 11 DrEvil
	5 115
	2 5 1 3 6 4
	40

	[program:mybash]
	command = /usr/local/post-start.sh
	startsecs = 0
	autorestart = false
	startretries = 1

	#!/usr/bin/env bash
	set -e

	echo "Applying netplan .."
	netplan apply
	sleep 5

	echo "Changing hostname .."
	hostnamectl set-hostname bombhost
	sleep 5

	const apiUrl = "http://localhost:1337/home-page";
	const headers = { "Content-Type": "application/json" };
	axios({
	url: apiUrl,
	headers: headers,
	method: "GET",
	})
	.then((response) => {
	this.data_property = response.data
	})

	<?php
	if(isset($_GET['username']) && isset($_GET['password'])) {

	//end point url local server.
	$url="https://www.apvera.com/RetunJsonSubscription.php";
	$type='Get';

	$username='admin';
	$password='password';

	*.img
	*.raw