Mateusz Gozdek invidian

## kcgroups.md

      
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                mcastelino
                / kcgroups.md
            
            
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              April 12, 2024 08:58
            
              
                Kubernetes and cgroups Resource Management/Static cpuManagerPolicy/Memory and Resource Isolation & Scheduling
              
          
    Overview

The goal of this document to cover all aspects of Kubernetes management, including how resources are expressed, constrained and accounted for. This started a way to ensure that alternate container runtime implementation like Kata containers will behave from a resource accounting and consumption point of view in the same manner as runc.
Location of the latest version of this document: https://gist.github.com/mcastelino/b8ce9a70b00ee56036dadd70ded53e9f
If you do not understand cgroups please refer to a quick primer at the bottom of this document. This will help you understand how the resource enforcement actually works.
Kubernetes Resource Management


## .ssh_config
Host *
  ControlPath ~/.ssh/control/%C
  ControlMaster auto

## security-bruteforce-report.md

      
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                GabMus
                / security-bruteforce-report.md
            
            
              Created
              April 2, 2017 15:14
            
              
                Bruteforcing the 3 main security levels of a computer
              
          
    Bruteforcing the 3 main security levels of a computer

Level 0 - BIOS

Docs:


Decode a Laptop BIOS Password Using a Simple Checksum Script

Most BIOS store the checksum of the password in the FlashROM chip.

  
## proc_net_tcp_decode
Decoding the data in /proc/net/tcp:

Linux 5.x  /proc/net/tcp
Linux 6.x  /proc/PID/net/tcp

Given a socket:

$ ls -l  /proc/24784/fd/11
lrwx------ 1 jkstill dba 64 Dec  4 16:22 /proc/24784/fd/11 -> socket:[15907701]
	Decoding the data in /proc/net/tcp:

	Linux 5.x /proc/net/tcp
	Linux 6.x /proc/PID/net/tcp

	Given a socket:

	$ ls -l /proc/24784/fd/11
	lrwx------ 1 jkstill dba 64 Dec 4 16:22 /proc/24784/fd/11 -> socket:[15907701]