---
title: Recursos útils
tags: recursos, general, hack
description: View the slide with "Slide Mode".
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spotlight:
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---
# recursos útils per classe

[TOC]

## dns
https://dnsexit.com
(nota1: inestable-potser en ocasions no és accessible) (NO permet modificar els servidors de noms: Route53/Cloudflare)
(nota2: dubtes amb el funcionament dels registres via api; sols via api key)
https://www.dynu.com (nota1: els registres TXT i MX sols per dominis de més de 30 dies: solució-> 1er dia de classe!!)
(nota2: és possible crear el certificat sense esperar els 30 dies via acme.sh i la api key del compte de dynu)
(nota3: sols 4 registres màxim al pla gratuït)
https://www.duckdns.org/ (no permet crear registres TXT/MX; o al menys de manera senzilla)
https://www.noip.com/

## online password generator
https://bitwarden.com/password-generator/
https://passwordsgenerator.net/

## online clock
https://vclock.com/
https://e.ggtimer.com/60

## draw on screen
https://ubuntuhandbook.org/index.php/2021/02/start-drawing-on-screen-ubuntu-2004
https://openboard.ch/index.en.html
[firefox marker](https://addons.mozilla.org/en-US/firefox/addon/marker-ink/)

## slideshow
https://sli.dev/
https://github.com/FormidableLabs/spectacle
[presentacions en pdf - pdfpc](https://github.com/pdfpc/pdfpc)

## online blackboard/whiteboard
https://excalidraw.com/
https://tldraw.com/
https://wbo.ophir.dev/

## diagrams (online)
https://www.diagrams.net/
https://d2lang.com/
https://play.d2lang.com/
https://mermaid.live/
https://stan-smith.github.io/FossFLOW/

## screenshot
https://flameshot.org

## screenrecorder
[simple screen recorder](https://www.maartenbaert.be/simplescreenrecorder/)
[obs](https://obsproject.com/)
[chrome extension - screenity](https://github.com/alyssaxuu/screenity)
[gpu screen recorder](https://git.dec05eba.com/gpu-screen-recorder/about) - [app](https://flathub.org/apps/com.dec05eba.gpu_screen_recorder)
[togif - gifcap](https://gifcap.dev/)
## screen sharing
[complement OBS - vdo.ninja](https://vdo.ninja/)
https://meet.google.com
https://app.screego.net/

## terminal sharing
https://tmate.io/
https://github.com/yudai/gotty
https://www.teleconsole.com/

## fast public copy paste from terminal
http://termbin.com/

## gamificació/ludificació
https://ars.particify.de

## full screen - app sharing (LAN x client)
https://deskreen.com/lang-en

## url shortener
https://tiny.cc/

## disposable email
https://maildrop.cc/
https://mail.tm/en

## distraction free (paywall bypass)
now dead >> best of bread > 12 feet
now dead >> https://outline.com/
untested >> https://github.com/iamadamdev/bypass-paywalls-chrome
https://www.adslzone.net/noticias/internet/alternativas-ft-ladder/

## usb multiboot
https://www.ventoy.net/en/index.html
... and network multiboot
https://netboot.xyz/

## network labs
https://netsim-tools.readthedocs.io/en/latest/index.html

## cloud & labs for free
https://docs.oracle.com/learn/
[azure for students](https://signup.azure.com/studentverification?offerType=1)
https://render.com/

## entorns de proves
[docker playground](https://labs.play-with-docker.com/)
[ubuntu i altres - killercoda - (katacoda replacement)](https://killercoda.com/)
[ubuntu 20.04 - katacoda - now pay only access](https://www.katacoda.com/courses/ubuntu/playground2004) (fins el 15 de juny de 2022)
[red hat enterprise](https://lab.redhat.com/sandbox)
https://goteleport.com/labs/
[iximiuz - 2h/dia](https://labs.iximiuz.com/playgrounds)
[playground seguretat](https://www.openappsec.io/playground)
[last resource - onworks - short timer ](https://www.onworks.net)

## free (as in beer) static web page hosting
https://gohugo.io/hosting-and-deployment/

## online tools
https://dnschecker.org/all-tools.php

## file sharing
https://snapdrop.net/
https://www.sharedrop.io/
https://github.com/magic-wormhole/magic-wormhole
https://github.com/schollz/croc
https://wormhole.app/
https://fromsmash.com
https://transfer.sh/

## generació de password d'un sol ús
https://temporary.pw/

## edició col.laborativa de text online
https://etherpad.opendev.org/
https://ethercalc.net/

## ofimàtica (degoogle)
https://cryptpad.fr/
https://framasoft.org/ca/full

## tunneling (a.k.a. self-hosting)
https://www.cloudflare.com/es-es/products/tunnel/

## vpn
[opera browser vpn]
https://blog.tonari.no/introducing-innernet
https://www.netmaker.org/

## beyond vpn
https://www.zerotier.com/

## instant web
https://tiiny.host/

## loving docker
https://docs.linuxserver.io/general/awesome-lsio

## diccionari
https://www.termcat.cat/ca
https://www.softcatala.org/

# pendent explorar
elest.io
https://www.pikapods.com/

## formularis configurables
https://www.cognitoforms.com/