Een AWS server configuratie


Maarten Jongmans is software engineer en projectleider bij endroit.nl en boo2.nl.  Met zijn team ontwerpt, ontwikkelt en onderhoudt hij web-applicaties. In deze blog vertelt hij over zaken die hij bij zijn dagelijkse werkzaamheden tegenkomt.

Wij gebruiken AWS voor het draaien, beheer en onderhoud van web-applicaties. AWS biedt honderden bouwblokken met duizenden mogelijkheden voor het inrichten van een optimale cloud-omgeving. In deze blog toon ik de inrichting die we gebruiken met in [vierkante] haken referenties naar de AWS bouwstenen en wat technische omschrijvingen voor die het begrijpen.

Onze web-applicaties geven gebruikers (users)  informatie via schermen op desktop en smartphones via https (browser) maar sturen ook emails [SES] en SMS [SNS]. De emails zijn gecertificeerd door Amazon en komen niet in de spam. Alle bouwstenen van de server zitten veilig in het AWS Ecosysteem met een single login [IAM]. Voor DNS gebruiken we [Route53] waarmee we ook up / down-time en gebruikers-klikken vastleggen en rapporteren via [CloudWatch]  en [QuickSight] . Online toegang is beveiligd met een Firewall [WAF] waarvoor regels worden gebruikt die specifiek zijn per programma. Zo worden voor Wordpress websites gelet op andere hack-patronen dan bij administratie-programma's. Moter van het platform zijn de [EC2] webservers waarvan er door auto scaling van de [Elastic Load-Balancer] instances (kopieën) worden gemaakt (en weer worden verwijderd) al naar gelang het aantal gebruikers zodat de performance altijd optimaal blijft. Om dit te bewerkstelligen zijn al onze applicaties stateless.  De aparte database servers [RDB] zitten in een Privat Subnetwerk dat alleen door de webserver is te benaderen. Files worden opgeslagen op file-server [S3]. Statische content wordt op externe servers in een Content Delivery Netwerk [CloudFront] extra snel weergegeven in de browser zonder load op de web-server [EC2]. Statistieken en dashboards worden gegenereerd door [QuickSight] met een kopie database zodat de [RDB] gewoon kan blijven werken zonder met zware overzichten lastig te worden gevallen. Tenslotte gebruiken we [CloudWatch] voor iedere bouwsteen voor een 7/24 monitor van de applicaties in onze boo2 en endroit cockpit van het support-team.

Comment and receive 50 YP 50
Book Fidget Fun (The Craft Teacher Ede)
There he is, then.! The brand new book Fidget Fun! With this book (from De Knutseljuf Ede) you make your own fidgets, with simple home, garden and kitchen items! Fidgets are fun, for everyone, and now to craft yourself! The Fidget craze Fidgets conquer the world! Toys to make and play with: pop it, play and have fun. You see them at home, in the schoolyard and in the classroom. Create your own fidget and pop toys with this book by The Craft Teacher Ede. Give your classmates a check and craft the cutest fidgets to dolls, pinch, click and fidgets. Nice to make, but even finer to play with. Discover step by step how to make every DIY fidget, including fun games. A book by Luitingh-Sijthoff publishing house, full of great ideas for hours of pop & play fun. What are fidgets? It's a bit difficult to explain what Fidgets are, but you probably do it sometimes; unconsciously clicking your pen, frunniking rubber bands, beer mats, your necklace, twisting your ring, rustling with candy wrappers or some fruttering with what you have at hand. During a phone call, or during another occupation, where you need concentration. That's exactly what fidgets are, they're plays/materials with which you can play. They can move, spin, click, pop or rustle, and the fruiting and frunniking on it works relaxing! In this book you will find all kinds of examples and inspirations to create your own fidgets. So fun and handy! Curious about the book? You can order it now, so that you will be one of the first to see the book on the doormat! Click on the photo of the book or click HERE to view the booklet or to order (via Bookwereld). Creative greetings and lots of Fidget Fun desired, Ilse The Craft Teacher Ede Read More Useful permanent markers that you can use when making the fidgets: more info 100 Keyrings to make all your friends and girlfriends all kinds of fun fidgets! - more info Also these dot pens (pearl pens) are beautiful and fun to decorate your fidgets! You can find them in the webshop of Trixx Creatief! more info De Knutseljuf Ede has been working with Mirelle van Crea for years with Kids! All craft tips of De Knutseljuf Ede can be found on the website www.creametkids.nl Do you want a creative workshop at your home? Then look at www.deknutseljuf.nl Follow De Knutseljuf Ede on Facebook , Instagram and Pinterest Mail: ilse@deknutseljuf.nl Want to see more here on Yoors? Or give a comment or maybe post something yourself? That can be! Sign up first (free) at Yoors: - Sign up here for free at Yoors! #fidgets #fidget #fidgetfun #booklet #lidteacher #diyfidgets #tinkering #yoorsapril2021 #creatively #craftbook #diy #publishers -sijthoff
Comment and receive 500 YP 500
I Want This Booster! But Not For Myself!
As many of you know, I have a company whose revenue/profit is spent on minima-families. Every now and then, such an incredibly poignant story comes along.. I share this on my Facebook group The Hermelijnhof so people can see what they're donating for. Below is a report from today. Just had a long conversation with a woman who had finally gathered the courage to ask for help this morning. I'm so proud of her. She is a proud woman with two smart, hard-working teenagers and a (far too) hard working man. The we-should-solve-this-self-mentality there is deep ingrained. But now despair is too great, too cluttered. The oldest studies, completely at his own expense, at the university. Because of Corona, this fanatical student has been at home all year round, and the laptop needed for the study is running overtime. Time and again, children also contribute to household income. There are, due to external (and known to me) circumstances, absolutely no extras. Their income is €5.00 too high to claim assistance from the Food Bank. A lot of help has been in contact with this family and they are on the right track. There are no significant debts (anymore) and everyone is working hard to keep things in order. And then, shortly before any exams have to be done, the oldest laptop. Since the family talks to each other about the financial situation it is immediately clear that there is no jar for the €809.00 repair for this device, buying a new one is already not an option at all. The device now lies with the repairman to be made. Fortunately, this family makes sensible choices. When purchasing the laptop, insurance is taken out, which covers most of the costs, but there is a deductible, of €168.00. And that will have to be paid in a week. Mother lies awake nights with worries, she cries a lot in our conversation and is visibly tremendous. “ I'm handy with selling things, so I've always been able to solve it, but there is simply nothing left to sell “. She doesn't remember. The worst part was how her child reacted; despondent, desperate and distraught. The child even indicated then to stop the study, because he no longer saw a way out. What now? I'm reassuring her right away; with our great group, we're going to settle this. In fact, it's already settled, so I tell her. Thanks to the sale of inserted items, there is always a buffer on the account of De Hermelijnhof, so it will be fine. We're gonna do this. Because assistance requests usually ask for stuff, we can leave money largely on the account, so that when there is a question for help where only money can provide a solution, money is also there. Of course we're going to arrange this. Thanks to you. That's why in this again a huge hymn to all members of De Hermelijnhof. The rich stinkers, the minima, and everyone in between. You're helping this woman and her family out of the fire. You take care of this financial space with the input of items, with the purchase of items, with shopping at De Shoptjes, and with your donations. Thank you so much for that. Thank you so much for taking care of burdens within this family and especially thank you for the trust in De Hermelijnhof, that I can do this job, that I can make people happy and connect, and that we can make the world more beautiful together. I am grateful to have the confidence to be able to spend the money that comes from you wherever I feel it is necessary. You make the world more beautiful, it's you who, even if you don't see it, make a difference. A family that sits down for dinner and is relieved collectively. The hope they feel, the love of charity, the relief and the trust. That's priceless. Thank you, I say with tears in my eyes. Thank you very much! A fierce day! A nice result! So I could use the booster! Below a photo of the reaction of Mrs.. #tomakepeoplehappy #helping #render #thanks #love #sharing #iwantthisbooster