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Mathematics: What do grad students in math do all day?

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?

Other people's projects:

https://github.com/laracasts/URL-Shortener URL Shortener by Jeffrey Way
https://github.com/basco-johnkevin/laravelsnippets Source code of http://laravelsnippets.com website
https://github.com/jesseterry/FusionInvoice FusionInvoice is built for freelancers and small businesses who need a simple, yet powerful self-hosted web based invoicing system.
https://github.com/ezynda3/burnmsg is a self-destructing encrypted message app. A demo is also running on https://burnmsg.com
https://github.com/martindilling/auto-generating-gallery the demo is at http://gallerydemo.martindilling.com/

My projects (tutorials are on my blog at http://maxoffsky.com):

https://github.com/CodepadME/laravel-tricks - Source of Laravel-tricks.com

How to setup AWS lambda function to talk to the internet and VPC

I'm going to walk you through the steps for setting up a AWS Lambda to talk to the internet and a VPC. Let's dive in.

So it might be really unintuitive at first but lambda functions have three states.

No VPC, where it can talk openly to the web, but can't talk to any of your AWS services.
VPC, the default setting where the lambda function can talk to your AWS services but can't talk to the web.
VPC with NAT, The best of both worlds, AWS services and web.

Recently, Let's Encrypt launched free wildcard certificates. While this is good news in and of itself, as it removes one of the last remaining reasons for expensive commercial certificates, I've unfortunately seen a lot of people dangerously misunderstand what wildcard certificates are for.

Therefore, in this brief post I'll explain why you probably shouldn't use a wildcard certificate, as it will put your security at risk.

A brief explainer

It's generally pretty poorly understood (and documented!) how TLS ("SSL") works, so let's go through a brief explanation of the parts that are important here.

The general (simplified) idea behind how real-world TLS deployments work, is that you:

🗺️ OSM - self host the entire planet 🌎 in ~30 minutes 🚀

TL;DR

mkdir osm
wget -O osm/planet.mbtiles https://hidrive.ionos.com/api/sharelink/download?id=SYEgScrRe
podman run -ti --rm -p 9000:9000 --name sms -v $(pwd)/osm/:/data/ registry.gitlab.com/markuman/sms:latest
firefox http://localhost:9000

	#### InstallEssentials Script ####

	# args: Options that will be appended to every apt-get install command.
	# Possible options: -y --force-yes -q -qq ...
	#args="-y -qq"
	args="-y"

	# argsAddRepo: Options that will be appended to every add-apt-repository command.
	# Possible options: -y (force yes on all confirmation questions!)
	argsAddRepo="-y"