information security and more
Installing gentoo introduces always some pitfalls, this time we focus on EFI. 1. Prerequisites: Get the installation image on an USB drive or a disc: dd if=Downloads/install-amd64-minimal-20201206T214503Z.iso of=/dev/sdh bs=4M status=progress Then activate the network connection on the live installation OS, e.g.: dhcpcd eth0 ifconfig Then activate ssh to keep it simple and print the keys … Read More “Installing gentoo encrypted on a modern UEFI notebook” »
Shellcode is a sequence of instructions and is usually implemented in assembly language for a given architecture. Shellcode can be used to design and formulate a payload for exploitation. Writing shellcode looks like an antiquated technique since they were used primarily to execute instructions when exploiting buffer overflows. Defense technologies like Data Execution Prevention (DEP) … Read More “Exploiting systems stealthy: Writing Shellcode in 2020” »
If you develop software using Eclipse you might noticed that the indexing algorithm is powerful but might be reducing your setup performance. Eclipse is slowed down when you index too many files, for example from 3rdparty folders or other dependencies you don’t want to have indexed. Building new filters in Eclipse You can easily exclude … Read More “Exclude files from Eclipse indexing mechanism” »
For decent Kernel development I needed a virtual machine and a Kernel I can control easily. Since I use gentoo for almost every system it was a clear choice I want to use gentoo again, even though it might be a bit time consuming to set it up. For the start I will run gentoo … Read More “Setting up a Gentoo VM for Linux Kernel Development” »
Have you ever tried to record some video or audio and video material using VirtualBox? Then you probably find out that the solution is too slow for your needs. With FFmpeg you are able to record not only video but also audio. Installation Install FFmpeg for your operating system, e.g. sudo apt install ffmpeg or … Read More “Using FFmpeg to record video and audio” »
After writing a lot of technical stuff into text files I finally decided to start writing these (typically technical) memos, write-ups and tutorials into the structure of a blog.