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/*
 * gcc -O2 matrix.c -o matrix
 * 
 * for i in {1..30}; do echo 768 | ./matrix; done > matrix.csv
 * 
 * R
 * data = read.csv("matrix.csv", header = FALSE)
 * wilcox.test(data$V1, data$V2, alternative = "two.sided")
 */

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random proxmox bridge config hetzner

auto vmbr0
iface vmbr0 inet static
  address primary_ip
  netmask 255.255.255.255
  bridge_ports none
  bridge_stp off
  bridge_fd 0
 bridge_maxwait 0

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How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

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# SNAKES GAME
# Use ARROW KEYS to play, SPACE BAR for pausing/resuming and Esc Key for exiting

import curses
from curses import KEY_RIGHT, KEY_LEFT, KEY_UP, KEY_DOWN
from random import randint


curses.initscr()
win = curses.newwin(20, 60, 0, 0) #CREATECANVAS

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curl --include \
     --no-buffer \
     --header "Connection: Upgrade" \
     --header "Upgrade: websocket" \
     --header "Host: example.com:80" \
     --header "Origin: http://example.com:80" \
     --header "Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ==" \
     --header "Sec-WebSocket-Version: 13" \
     http://example.com:80/