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How to install CUDA & cuDNN on Ubuntu 22.04

Install NVIDIA drivers

Update & upgrade

sudo apt update && sudo apt upgrade

Remove previous NVIDIA installation

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

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Background

On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that

# Connectiong by SSH from Android Termux to Desktop and vice-versa.md
# Copyright (c) 2019 Evandro Coan
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

云

IaaS指提供系统（可以自己选）或者储存空间之类的硬件，软件要自己手动装；PaaS提供语言环境和框架（可以自己选）；SaaS只能使用开发好的软件（卖软件本身）；BaaS一般类似于非关系数据库，但各家不通用，有时还有一些其它东西。

其他人的集合

https://education.github.com/pack GitHub学生包，需用教育邮箱验证。各种福利，可从DigitalOcean上手
https://github.com/ripienaar/free-for-dev 本文尽量不与此项目重复
https://free.zhelper.net/
https://github.com/AchoArnold/discount-for-student-dev

OrthogonalConnection

The class OrthogonalConnection creates a polyline that goes from p1 to p2, composed only by horizontal and vertical segments. The shape of the line is controlled by the path parameter.

There are two ways to use this class:

p1 and p2 are the start and end points of the line, and path is a string with the characters "-" and "|" indicating the horizontal and vertical segments of the line.

For example "-|-" will start with a horizontal segment, that will go until the x coordinate intermediate between p1 and p2, then a vertical segment up to the y coordinate of p2, and finally a horizontal segment to p2.

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Canvas Game</title>
	<style>
	canvas {
	border: 1px solid black;
	}

	var mediaJSON = { "categories" : [ { "name" : "Movies",
	"videos" : [
	{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
	"subtitle" : "By Blender Foundation",
	"thumb" : "images/BigBuckBunny.jpg",
	"title" : "Big Buck Bunny"
	},
	{ "description" : "The first Blender Open Movie from 2006",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Canvas Game</title>
	<style>
	canvas {
	border: 1px solid black;
	}

	#!/bin/bash
	#
	# script to fully prepare ImageNet dataset

	## 1. Download the data
	# get ILSVRC2012_img_val.tar (about 6.3 GB). MD5: 29b22e2961454d5413ddabcf34fc5622
	# wget https://image-net.org/data/ILSVRC/2012/ILSVRC2012_img_val.tar
	# get ILSVRC2012_img_train.tar (about 138 GB). MD5: 1d675b47d978889d74fa0da5fadfb00e
	# wget https://image-net.org/data/ILSVRC/2012/ILSVRC2012_img_train.tar