¿Que es el DNS Flag Day?
El día en el que veremos internet arder (el apocalipsis)….
El 01 de febrero de 2019 cuatro de los principales proveedores de DNS Resolver, realizarán un lanzamiento de su software con una característica en común; la cual, es que se manejará el estándar EDNS de forma estricta. Esto presenta el fin de parches temporales históricos que perdonaban ciertas conductas desviadas del estándar en los servidores DNS autoritativos.
Dentro de los problemas que se tienen se encuentran:
- DNS autoritativos que bloquean respuestas.
- Malas implementaciones de DNS que no siguen los estándares.
- Protecciones de seguridad (Firewalls, IDS/IPS, etc) mal implementados o con malas practicas que bloquean el trafico que sigue el estándar.
- Los Resolver deben esperar timeout y reintentar con TCP y sin EDNS.
Por estos días algunos DNS públicos (Google, Facebook, PowerDNS, CloudFlare, Quad9, Cisco, etc) también realizaran estos cambios.
¿Qué es EDNS RFC 6891?
Define un mecanismo compatible con DNS para indicar soporte para nuevas opciones incluyendo soporte para paquetes más grandes (sobre 512 bytes), más códigos de respuesta, etc.
¿Para qué sirve EDNS?
Es requerido para para que funcionen las siguientes extensiones:
- NSID -- RFC 5001: identificación de instancia del servidor
- DNSSEC -- bit DO: por favor, responda con registros DNSSEC
- Client-subnet, RFC 7871: desde qué red viene esta consulta?
- Keep-alive, RFC 7828: timeout variable para DNS sobre TCP.
- Cookies, RFC 7873: mecanismo liviano de seguridad.
- Las nuevas extensiones y funcionalidades que en el futuro se puedan adicionar...
¿Qué impacto tiene este cambio sobre el modulo GTM/DNS de F5?
Dado que el servicio de GTM/DNS de F5 es un servicio de DNS y una de sus implementaciones es responder de forma autoritativa, éste debe seguir el estándar DNS y cumplir de forma estricta los RFC’s que definen el servicio.
Por esto se hace necesario realizar una validación de los servicios que pasan por F5 GTM/DNS con el fin de prevenir una posible afectación del servicio.
Many thanks, Lots of advice!
prescription drugs overdose statistics nile rx pharmacy opioid prescription drugs
so I decided to check out your site on my iphone during lunch break.
I love the info you provide here and can't wait to take a look when I get home.
I'm amazed at how quick your blog loaded on my mobile ..
I'm not even using WIFI, just 3G .. Anyways, awesome site!
abuse of prescription drugs [url=https://sopharmsn.com/]foreign pharmacy no prescription[/url] online pharmacies in usa
https://edpillsfast.com/# ed pills gnc
[url=https://edpillsfast.com/#]pill for erectile dysfunction[/url] the best ed pills
You definitely made the point!
Super P-Force online pharmacies without prescription online pharmacy reddit
widgets I could add to my blog that automatically tweet my newest twitter updates.
I've been looking for a plug-in like this for quite some time and
was hoping maybe you would have some experience with something like this.
Please let me know if you run into anything. I truly enjoy reading
your blog and I look forward to your new updates.
but Many individuals Really don't understand how to guess on the web.
This text presents simple information on how to bet on basketball with on line bookmakers.
How to wager on basketball using on the net bookmakers.
1. Register at a web-based bookmaker.
That is A very powerful step because you want to pick out an on-line
bookmaker you could have faith in. The bookmakers
outlined on this page are trustworthy and possess good reviews.
two. Choose the kind of basketball bet you want to make.
There are various sorts of basketball bets you can also
make, from an easy issue spread wager to far more intricate bets.
three. Pick the game you want to guess on.
You need to know the main points in regards to the match that you'd like
to guess on, including the score and time remaining in the game.
four. Place a wager.
After you have selected the game, you have got to position bets.
It is possible to wager on The purpose spread, moneyline,
totals, halftime line, or quarter traces.
5. Check the sport.
Everytime you spot a wager on basketball using an online
bookmaker, you have got to continue to keep monitoring
the game. Some on the net bookmakers will offer you Reside updates, Other individuals will not likely.
that is actually why you regularly crank out my close friend.
Great blog posts that our experts can easily drain our teeth into and definitely
most likely to operate.
I love this blog site message and also you recognize you're.
Blog writing can easily be actually quite overwhelming for a great deal of
people since there is actually thus a lot involved however its own like just about
anything else.
Excellent portion and thanks for the acknowledgment here,
wow ... Just how trendy is that.
Off to discuss this post now, I yearn for all those brand-new writers to see that if they do not currently possess a planning
ten they perform currently.
HD görüntü kalitesinde, kesinti donmadan olmadan canlı
maç yayını izlemek için en doğru adres taraftarium24 tv
kanalıdır. Birçok spor türünün canlı maç izle seçeneği
sunarak taraftarların kaliteli canlı maç izle alternatifinden yararlanmasını sağlamaktadır.
Sadece canlı maç izle seçeneği değil maç özeti izle,
maç analizi izle, maç yorumları izle, spor etkinlikleri ne zaman hakkında bilgiler verilerek spor sevenlerin beklentilerini karşılamaktadır.
Taraftarium 24 canlı maç izle alternatifinin sunulduğu en iyi spor kanallarından biridir.
Bu yüzden her ay abonelik yaptırmak isteyenlerin sayısı artmaktadır.
Abonelik sistemi ile yayın yapan kanallar takımların finansal desteğini sağlamaktadır.
Bu yayın kanalları arasında Taraftarium24 tv ve Bein Sports bulunmaktadır.
Bein sports canlı maç izle seçeneği sunan kanallar arasında Mega tv, taraftar tv, jojobet tv gibi birçok spor kanalı bulunmaktadır.
Bu spor kanalları arasında sadece futbol bulunmamaktadır.
Basketbol özellikle canlı NBA maç izle seçenekleri tercih
edilmektedir. Ekonomik ya da farklı nedenlerden dolayı abonelik sistemi alamayan taraftarlar ise sosyal medya yoluyla canlı maç izle yayınlarından faydalanmaktadır.
Özellikle taraftarium 24 twitter canlı maç izle alternatifi Periscope üzerinden yayınlanmaktadır.
https://zjkg.net/
I've joined your feed and look forward to seeking more of your
excellent post. Also, I have shared your site in my social networks!
Here are a few strategies that will help you obtain the appear
that you would like:
1. Pick a roulette desk which has a smooth, present day structure.
This could make your desk glance more reducing-edge
and present-day.
2. Go with a roulette desk having a higher-gloss
end. This will make your desk search far more polished and magnificent.
3. Go with a roulette table which has a rich, dark coloration. This will likely give your table a sense of
sophistication and luxury.
4. Decide on a roulette desk by using a smooth, up to date layout.
This can make your table glance far more reducing-edge and present-day.
5. Decide on a roulette desk with a superior-gloss complete.
This is likely to make your table appear extra polished and luxurious.
6. Go with a roulette table by using a wealthy, dim shade.
This could give your table a sense of sophistication and luxurious.
7. Decide on a roulette table which has a sleek, shiny complete.
This could make your desk glance additional inviting and consumer-friendly.
8. Opt for a roulette table that matches your décor. This is likely
to make your desk appear smooth and trendy
inside your casino.
nine. Opt for a roulette desk that suits your funds.
This will help you to stay in just your investing constraints.
10. Opt for a roulette table that is easy to clean. This can make your
table less difficult to keep up and hold searching refreshing.
truly remarkable yet that's why you always crank out my friend.
Excellent posts that our team can drain our pearly whites in to and
also definitely visit operate.
I like this blog as well as you understand you correct.
Due to the fact that there is actually thus a lot entailed but
its own like anything else, writing a blog can be actually quite frustrating for a lot of individuals.
Everything takes a while and all of us have the very same amount of
hrs in a day thus put them to excellent use. All of us need to begin someplace and also your
program is actually best.
Excellent allotment and many thanks for the reference right here, wow ...
Just how awesome is that.
Off to share this post currently, I want all those brand-new blog owners to find
that if they do not currently have a planning 10 they perform right now.