How Hackers Are Using GPUs

GPU stands for "Graphics Processing Unit". It's a single-chip processor designed to handle graphics operations. It's primarily used to manage and boost the performance of video and graphics by use of features designed to lessen the work of the CPU and produce faster video and graphics. A GPU is not only used in a PC on a video card or motherboard; it is also used in mobile phones, display adapters, workstations and game consoles.

Web browsers use GPUs to render graphics on desktops, laptops, and smart phones. GPUs are also used to accelerate applications on the cloud and data centers. GPUs are usually programmed

Fixing Operating System Boot Problems

We all at one time experience booting up issues with our computers.

Your computer may fail to boot an operating system when you perform on of the following actions:
    • Delete a Partition
    • Move a Partition
    • Install another operating system and overwrite the Master Boot Record

Luckily, we can always solve boot up failure. If your computer does not use GRUB then you are advised to consult documentation for your boot loader to learn how to fix the problem. In this article I'll deal with the case of a computer that uses a GRUB boot loader.

Kali Linux 2018.4 Release Comes With New Tools and Tool Upgrades

We now already have the fourth and final release of Kali Linux 2018, the Kali Linux 2018.4. You can download it here. This release has brought us up to kernel version 4.18.0. It has numerous bug fixes and package updates. 

On a personal level, i remember release 2018.2, or was it 2018.3, the terminal was just dark with no control for opaqueness but the new 2018.4 comes with opaqueness control of the terminal.

I love a translucent terminal.

How To Hack Wifi Networks To Get Passwords

WPA/WPA2 Attack Using Aircrack, with data capture

In this attack, we will capture data wirelessly when someone logs into the router and use a wordlist to throw the data captured until the password is found.
 
We beginning our operation by setting the adapter into monitor mode:
        airmon-ng start wlan0

If you wish to see any Routers or APs and devices, execute the command:
        airodump-ng --uptime --manufacturer -a wlan0mon 
where:  

• uptime shows how long the devices have been on.
• manufacturer tells you the manufacturer of displayed device.
• -a will ignore any "not associated" clients e.g. ones using mobile data or having no password to the routers but are attempting to connect. If you wish to see such devices/clients just omit the -a.

Beginning Wireless Penetration Testing

When beginning wifi pentesting, to prevent the pentest from getting into trouble with existing utilities such as network-manager and wpa_supplicant, check and kill all processes using the command:
        airmon-ng check kill

You can also stop their services and their processes manually e.g. using the command: 
service network-manager stop for network-manager and the kill <pid> command for wpa_supplicant.
i.e. search for their process by executing the command:
        ps aux | grep wpa_supplicant
        ps aux | grep NetworkManager

How To Fix A System Freeze In Kali Linux

A system freeze is a common problem in most operating systems. We all experience it along the way and we sometimes do know what caused it and even how to solve it e.g. when i run so many resource draining processes or applications on my system than it can handle.

There may occur a system freeze that causes a window or an application to freeze while it was still running. Many will have observed this commonly in Microsoft Windows where an application tells you "Not Responding". In Windows you can either decide to wait for it to respond - can take forever sometimes - or you decide to open the task manager and forcibly make its processes to end by clicking on the End Task button.

Resetting Kali Linux Root Password

Kali Linux Change Root Password From The Grub Boot Loader

I have come across several cases in which people actually forget their login passwords. It can be very frustrating if that was the login password to your root account on a Linux system. But luckily there is a way of changing the login password. If you are using Virtual Machine, VMWare Virtual Box and ARM images, then 'toor' is usually the default password for Kali Linux.

It should come to your attention that the possibility of changing your root password when not logged in, comes both as a hacking opportunity,loophole of sorts, as well as a security issue.