How to Configure Ip Addresses

Whether you're white hat, black hat, or some shade in-between, navigating through a network is a core part of hacking. To do that, we need to be able to explore a network to discover the addresses of gateways, interfaces, and other attached devices. When ifconfig just isn't en ...more

Welcome back my networking geeks. In this part we are going to keep discussing about IP Addressing and I hope after you finish reading it you will become an IP wizzard. So in the last tutorial we did what we did without the use of our default gateway. To be honest, in really ...more

Welcome back, my greenhorn hackers! As expected with Null Byte's dramatic growth over the last year, we have added many new aspiring hackers who are still lacking in the basics of networking. In addition, with the new "White Hat" certifications coming out shortly, the exam wi ...more

Hackers rely on good data to be able to pull off an attack, and reconnaissance is the stage of the hack in which they must learn as much as they can to devise a plan of action. Technical details are a critical component of this picture, and with OSINT tools like Maltego, a sin ...more

You may not know it, but the IPv4 address of your computer contains tons of useful information about whatever Wi-Fi network you're on. By knowing what your IPv4 address and subnet mask are telling you, you can easily scan the whole network range, locate the router, and discove ...more

Welcome, my neophyte hackers! The aspiring hacker needs to know a bit of Linux to be successful, and probably most importantly, Linux networking. To fill that knowledge gap, I'm offering this guide on Linux networking basics. I assume that you understand a small amount of net ...more

Seldom in recent history has a cyber security event caused so much media stir (maybe because it happened to a media company?) and international relations upheaval. Cyber security breaches seem to take place daily of major corporations, but the Sony hack seems to have captured ...more

Welcome back, my novice hackers! Reconnaissance is one of the most important preparatory steps to hacking. As I have emphasized many times before here on Null Byte, you must know the operating system, the ports, the services, the applications, and sometimes even the language ...more

Welcome back, my greenhorn hackers! Recently, I asked the Null Byte community what subject they would most like me to cover in future tutorials. Many of you cited scripting, and I decided it's best to cover this subject soon, so here goes. Any self-respecting hacker must be ...more

Welcome back, my aspiring hackers! Domain Name System (DNS) is one of those things we seldom think about unless it doesn't work. Then, it can be very frustrating when we attempt to navigate to a website and we get that frustrating error message. DNS enables us to type in a d ...more

The NSA's massive internet spying efforts will continue. In President Obama's latest press conference, he went public to (in so many words) say that the NSA's spying efforts will continue uninterrupted. This, coming just weeks after the Amash Amendment which would have defund ...more

Shodan calls itself "the search engine for internet-connected devices." With so many devices connected to the internet featuring varying levels of security, the special capabilities of this search engine mean it can provide a list of devices to test and attack. In this tutoria ...more

Welcome back, my aspiring hackers! In previous tutorials, I have shown you how to scan the globe for vulnerable servers and write simple scripts in BASH and Perl to perform other reconnaissance tasks. In a very recent guide, I taught how to scan vulnerable servers for Heartbl ...more

Most of you probably heard about Rasberry Pi and if you haven't; what is wrong with you? But nothing less a Rasberry Pi is a computer a very small computer. Despite these size limitations, the Rasberry Pi is to not be underestimated. Not only can it do anything like a normal l ...more

Welcome back, my hacker novitiates! Finding vulnerabilities in systems can be one of the most time-consuming tasks for a hacker. There will be times, though, when you'll find yourself in a position that you know that a particular port represents a vulnerable application or se ...more

When joining a new network, computers use the Address Resolution Protocol to discover the MAC address of other devices on the same network. A hacker can take advantage of ARP messages to silently discover the MAC and IP address of network devices or actively scan the network w ...more

Reconnaissance is the phase of an attack where a red team or hacker designs a strategy based on the information they can learn about the target, as well as what the available attack surface looks like. These scans can take time to discover relationships, but Raccoon OSINT scan ...more

Welcome back, my tenderfoot hackers! As you know, DNS, or Domain Name System, is critical to the operation of the Internet. It provides us with the ability to type in domain names such as www.wonderhowto.com rather than the IP address. This simple service saves us from having ...more

ARP spoofing is an attack against an Ethernet or Wi-Fi network to get between the router and the target user. In an ARP-spoofing attack, messages meant for the target are sent to the attacker instead, allowing the attacker to spy on, deny service to, or man-in-the-middle a tar ...more

Imagine being able to play a video instantly on hundreds of thousands of devices across the globe. It's totally possible, as long as all of those devices have a Chromecast plugged in. When Chromecasts are left exposed to the internet, hackers can use add them to a botnet that ...more

Welcome back, my budding hackers! As I have mentioned many times throughout this series, knowing a bit of digital forensics might keep you out of a lot of trouble. In addition, digital forensics is a burgeoning and high paying career. Some knowledge and certifications in this ...more

Welcome aboard my inquisitive comrades. I am starting a new series that nobody expected coming. It may not seem very exciting at first, but await the last few parts as many startling discoveries will be made. This is a series which I plan to continue after the completion of N ...more

Sometimes you need a password to gain access to an older running Windows system. Maybe it's a machine in your basement you forgot about or a locked machine that belonged to a disgruntled employee. Maybe you just want to try out your pentesting skills. When you need to access ...more

As you might know, there are a multitude of tools used to discover internal IP addresses. Many of these tools use ARP, address resolution protocol, in order to find live internal hosts. If we could write a script using this protocol, we would be able to scan for hosts on a giv ...more

Here I will show you how to properly dig information on the web that has already been published, you just dont know it. Where Am I Going with This? Well, as many of you might or might not know, many and I mean many people do actually keep info on their profiles that they do ...more

One of the biggest improvements in Mac OS X Yosemite came to the Spotlight search feature, allowing users to not only search through their applications, but also their emails, text messages, iCloud, and the web. But with this great power, it seems that Spotlight collects your ...more

Welcome back, my hacker novitiates! Many of you have probably heard of a man-in-the-middle attack and wondered how difficult an attack like that would be. For those of you who've never heard of one, it's simply where we, the hacker, place ourselves between the victim and the ...more

Welcome back, my fledgling hackers! Let's continue to expand our knowledge of digital forensics, to provide you the skills necessary to be a digital forensic analyst or investigator, as well make you a better hacker overall. In your attempts to enter a system or network undet ...more

NetBIOS is a service that allows for communication over a network and is often used to join a domain and legacy applications. It is an older technology but still used in some environments today. Since it is an unsecured protocol, it can often be a good starting point when atta ...more

Welcome back, my budding hackers! One of the keys to being successful as a hacker, pentester, or cyber warrior is the ability to find vulnerabilities or flaws in the target system, which are what we exploit when we hack. We have looked at several ways to do that including var ...more

In recent weeks, major bank websites around the world have experienced outages after being have been hit with Distributed Denial of Service (DDoS) attacks. Although few, if any, of these banks have been totally knocked offline, these DoS attacks have dramatically slowed the re ...more

Every Windows system includes command prompt; and while a lot of people on Null Byte and WonderHowTo in general know how to use it, some people don't know anything about it, even how to access it. Even if you aren't a Windows user, it's good to know how command prompt works b ...more

I'm not admitting to anything, but let's be honest, most of us download content on the Web from time to time. With copyright holders laying down the law more and more often, it can't hurt to do so with caution. And even if you aren't downloading copyrighted material, you still ...more

Hello everyone! How's subnetting going? Did you practice a lot? I hope you did, but even if you didn't we will go through some more examples so you can be feeling confident after reading this article. It's all about that bad boy binary! We will move from the previous article' ...more

By using almost any packet-crafting tool, a hacker can perform denial-of-service (DoS) attacks. With the power to create just about any packet with any characteristics, a hacker can easily find one that will take down a host or network. Nmap and Hping are effective packet mani ...more

Gathering information on an online target can be a time-consuming activity, especially if you only need specific pieces of information about a target with a lot of subdomains. We can use a web crawler designed for OSINT called Photon to do the heavy lifting, sifting through UR ...more

Welcome back, my rookie hackers! "How can I travel and communicate over the Internet without being tracked or spied on by anyone?" It's a question many Null Byteans have asked me, so I have decided to write a comprehensive article addressing this issue. There are a multitude ...more

Threats to your privacy and security are everywhere, so protecting your data should be the highest priority for anyone with a smartphone. However, one threat many people overlook is the company who supplies the operating system your Android phone runs — Google. Google offers ...more

It seems like every day now that we see a new headline on a cyber security breach. These headlines usually involve millions of records being stolen from some large financial institution or retailer. What doesn't reach the headlines are the many individual breaches that happen ...more

Hello, everyone. Stealth is a large part of any successful hack; if we don't get noticed, we're much less likely to be caught. In these next few articles, we'll be building a shell based on keeping us hidden from a firewall. There are many ways to stay hidden from a firewall, ...more

Leaked databases get passed around the internet and no one seems to notice. We've become desensitized to the data breaches that occur on a daily basis because it happens so frequently. Join me as I illustrate why reusing passwords across multiple websites is a truly awful prac ...more

In the realm of internet security, it's becoming clear that augmented reality is not immune to the increasing wave data breaches plaguing users. On Friday, furniture retailer Houzz, an early adopter of ARKit, revealed details of a data breach that occurred in December 2018. ...more

Hi there, nullbytes! I've been recently using NullByte as my only source of learning (almost) and it has proven to be really good to me. I've compiled some of the articles about networking, and ordered them in a way that made sense to me, and I thought about sharing the list ...more

Welcome back, my greenhorn hackers! Congratulations on your successful hack that saved the world from nuclear annihilation from our little, bellicose, Twinkie-eating dictator. The rest of world may not know what you did, but I do. Good job! Now that we hacked into the malevol ...more

The tactic of brute-forcing a login, i.e., trying many passwords very quickly until the correct one is discovered, can be easy for services like SSH or Telnet. For something like a website login page, we must identify different elements of the page first. Thanks to a Python to ...more

In this how-to we will be sending an email with an image we get from a php script after running some fishy code. What you'll need Apache web server with PHP An image (included bellow) An email Account (I use gmail) Step 1: Setting Up Make a folder called "image.jpg" in your ...more

Five Phases of Hacking:- The five phases of Hacking are as follow: Reconnaissance Scanning Gaining Access Maintaining Access Covering Tracks The Five Phases of Hacking Reconnaissance:- This is the primary phase where the Hacker tries to collect as much information as possib ...more

Based on OTW's encouragement in his post on "How to Find the Exact Location of Any IP Address", I decided to make a gui(graphical user interface) which would hopefully make the process easier. However, because turning a python script into a standalone executable is a right pai ...more

Privacy features have become quite the hot commodity, emerging from the aftermath of the NSA scandals that rocked the United States this past year. While the NSA has the means to gather information on all of us (regardless of any security software we implement), it doesn't mea ...more

Your English teacher is a creep. The way he looks at your girlfriend, the way he always spends ages with the girls in the class going over their work but not the boys, just the way he is. You want to get rid of him, but you need some proof first. Step 1: Fire Up Kali If yo ...more

Welcome back, my newbie hackers! We've already saved the world from nuclear annihilation and covered our tracks afterwards, but the world is still threatened by a malicious, megalomaniacal dictator with missiles and nuclear weapons. We need to keep a close eye on him, so in ...more

Welcome back, my novice hackers! Previously in my "Spy on Anyone" series, we used our hacking skills to turn a target's computer system into a bug to record conversations and found and downloaded confidential documents on someone's computer. In this tutorial, I will show you ...more

One thing I absolutely cannot stand is lag when I'm gaming. Every time I'm about to beat my killstreak record on Call of Duty, my internet connection drops and I'm a goner. It never fails. This usually happens because someone else on my Wi-Fi is streaming a movie or downloadin ...more

Microsoft's built-in antimalware solution does its best to prevent common attacks. Unfortunately for Windows 10 users, evading detection requires almost no effort at all. An attacker armed with this knowledge will easily bypass security software using any number of tools. As ...more

Let's say that we want to see what someone is doing on their computer? In this tutorial, we'll be hijacking cookie sessions to do just that! Step 1: Preparing Kali In order to do this, we need three tools: Ettercap (duh) Hamster Ferret Ferret is a nice little tool that run ...more

A man-in-the-middle attack, or MitM attack, is when a hacker gets on a network and forces all nearby devices to connect to their machine directly. This lets them spy on traffic and even modify certain things. Bettercap is one tool that can be used for these types of MitM attac ...more

In my last how-to, we built a man-in-the-middle tool. The aforementioned script only established a man-in-the-middle. Today we'll be building a tool to utilize it. We'll be building a DNS packet sniffer. In a nutshell, this listens for DNS queries from the victim and shows the ...more

With all of the bare-bones setup out of the way in our Mac for Hackers series, your Apple machine should be ready to run a significant amount of pentesting tools. We can pull tools from GitHub and compile them, we can pull dependencies or tools from Homebrew, we have both Pyth ...more

Welcome back, my nascent hackers! One of the many reasons I write this blog is to help you keep the Internet free and open. Throughout human history, whenever a government or other powerful entity has wanted to subjugate a people or group, the first thing they do is isolate t ...more