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Good morning and please remember that if you're expecting to make a highly important #DNS transition for one of your Internet domains, remember to change the TTL for the target record to 3600 or even 300 a day before you need to make the switch.

TTL tells DNS servers how many seconds it should wait before it should check again for updates.

Remember to reset your TTL back to normal when you're all done.

Ask me why I just remembered this.
#dns


I've run our #DNS servers at #DEFCON for about 25 years, and before upgrading one of them I recorded some statistics some might find interesting.

Of all the DNS traffic for a given period:

74% by connection is IPv4
26% by connection is IPv6

2% is using TCP 853 encrypted DoT

31% uses TCP
69% uses UDP

#sysadmin



Encrypted #DNS + #NTP = Deadlock

Blog post
https://cyounkins.medium.com/encrypted-dns-ntp-deadlock-9e378940b79f
#dns #ntp


Watch my talk on securing name resolution in the #IoT using #DNS over #CoAP, tomorrow on Day 3 at 12pm at @HIP22 in Room Parallel Port (Track 1): https://streaming.media.ccc.de/jev22/hip1

@RIOT_OS #HiP22


🆕 blog! “Naming things is hard - DNS for the Federated Web”

How should I design my personal DNS for all the cool new Federated Services and IndieWeb protocols? Way back in the early 2000s, I started this website - shkspr.mobi. A few years later, I added a blog. I could have used the main domain, or created a subdomain like blog.shkspr.mobi. In the end, I chose …

👀 Read more: https://shkspr.mobi/blog/2022/12/naming-things-is-hard-dns-for-the-federated-web/

#dns #fediverse #mastodon
The multicoloured interlocking lines of the Fediverse logo.


I have updated my list of Pi-Hole blocklists. There are now 68 list entries, resulting in 6121357 unique domains being blocked.

#pihole #dns #ads #adblocker #blocklist @NLnetLabs

You can find it in my GitHub repo at

https://github.com/pschneider1968/pihole-bl-msft-telemetry-bsi


Cómo evitar los anuncios de publicidad en una Smart TV #mejorando_la_casa #dns #smarttv https://linuxmanr4.com/2022/11/23/como-evitar-los-anuncios-de-publicidad-en-una-smart-tv/


Recopilando los LOGs de nuestro servidor DNS y DHCP en Elasticsearch y visualizándolos en Grafana #blog #auditbeat #dhcp #dns #elasticsearch #elk #grafana #queries #reguistros #servidor_dhcp #servidor_dns https://www.bujarra.com/recopilando-los-logs-de-nuestro-servidor-dns-y-dhcp-en-elasticsearch-y-visualizandolos-en-grafana/


Hat jemensch von euch schon mal die Rethink DNS + Firewall App für Android ausprobiert und wie ist eure Erfahrung damit?

🛡️ https://rethinkdns.com

#android #firewall #dns #tor #fdroid


So #DynamicDNS question:

I want to connect my RaspberryPi to the internet via a domain name I own. What is the simplest method of achieving this?

And which dynamic #DNS provider is privacy-friendly?

The first option I found on Fosstodon is:

https://desec.io/


Comando host en Linux con ejemplos # # # # # # https://www.ochobitshacenunbyte.com/2022/06/17/comando-host-en-linux-con-ejemplos/


Ya fue liberada la nueva version de PowerDNS Recursor 4.7 # # https://blog.desdelinux.net/ya-fue-liberada-la-nueva-version-de-powerdns-recursor-4-7/


Un Podcast para TI – Auditando el Directorio Activo # # # # # # # # # # # # # # # # # # # # https://www.bujarra.com/un-podcast-para-ti-auditando-el-directorio-activo/


Cambia las dns del servidor reisub de google a las de yandex.

Estos de google son unos loquillos.

# # # #
#


dnstop: monitoree y muestre el tráfico del servidor DNS en su red # # # https://www.linuxparty.es/35-linux/10953-dnstop-monitoree-y-muestre-el-trafico-del-servidor-dns-en-su-red.html


La Unión Europea prepara DNS4EU, quiere sus propios DNS ¿independencia tecnológica o Censura Encubierta? - LinuxParty # # https://www.linuxparty.es/95-unioneuropea/10941-la-union-europea-prepara-dns4eu-quiere-sus-propios-dns-independencia-tecnologica-o-censura-encubierta.html


#Problem
On 1 #RasPi I installed #Yunohost to create my own #friendica instance

Unfortunately the diagnostic tool has shown several errors (not serious), such as:

- Some #DNS records are missing or incorrect for domain dominio.test (category basic)

- Some DNS records are missing or incorrect for domain dominio.test (category extra)

- Domain otro.test appears unreachable through HTTP from outside the local network in #IPv6, though it works in IPv4

How can I fix these errors?


Neuer Artikel: Anonyme DNS-Kommunikation mit Pi-hole und dnscrypt-proxy
#pihole #dnscrypt_proxy #DNSCrypt #ODoH #DNS
https://decatec.de/home-server/anonyme-dns-kommunikation-mit-pi-hole-und-dnscrypt-proxy/


Mal eine Frage an die DNS-Experten hier: Ist OdoH (Oblivious DNS-over-HTTPS) besser als DNS over TLS und brauchen wir das, um anonyme DNS-Anfragen möglich zu machen?

Siehe auch: https://www.heise.de/hintergrund/Anonymes-DNS-Privatsphaere-schuetzen-mit-ODoH-und-DNSCrypt-6202072.html

#dns #ODoH
#dns #ODoH


Netzwerkgeräte verschlüsseln ihre DNS-Anfragen oft nicht, was ein Loch in den Privatsphärenschutz reißt. Mit passenden Gegenmaßnahmen lässt es sich stopfen.


Im Kuketz-Forum stellt Tschaeggaer eine ausgezeichnete Anleitung zur Verfügung: Wie man auf einem Raspberry Pi einen eigenen DNS-Server aufsetzt, um in Bezug auf das Domain Name System (DNS) die größtmögliche Selbstbestimmung zu erreichen.

#RaspberryPi #Unbound #DNS

https://forum.kuketz-blog.de/viewtopic.php?f=42&t=8759


Hat schon Mal jemand den #DNS Anbieter #DeCloudUs ausprobiert?
Ich nutze ja momentan #NextDNS.

DeCloudUs - Privacy DNS Blocks Google, Ads, and More

https://decloudus.com/

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