Unbreak4ble

needed commands

• 7z: used to unpack iso file;
• unsquashfs: unpack squashfs file. Ex: rootfs, desktopfs, etc...;
• mksquashfs: pack folder into squashfs file;
• grub-mkrescue: used to repack folder into bootable iso file by reading files in "grub" folder and others boot files.

unpack iso file

mkdir -v iso_root
cd iso_root

Unbreak4ble

TDP and turbo parameter modification with MSR on non-overclockable CPU

Disclaimer

• MSR modification may void your CPU's (or system board's) warranty. Proceed with care. I'm not responsible for any destruction caused by this article.
• MSR address (greatly) differs from CPU to CPU. Check your own CPU's MSR address using Intel's documentation.
• Only tested on Intel i7-8550U (Kaby Lake R).
• This article is translation of this article. If you can understand Korean, I recommend reading that article, not this.

Start

Unbreak4ble

step 1

if you don't have this version installed, download here and install it.

step 2

execute the command line bellow on terminal.

sudo perl -pi -e 's/\x00\x85\xc0\x74\x7b\xe8/\x00\x85\xc0\xEB\x7b\xe8/g' /opt/resolve/bin/resolve

it will replace some bytes of the executable file.

Unbreak4ble

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

Unbreak4ble

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore