Zu guter Letzt können wir die Einstellungen noch prüfen. Bei der FritzBox sollte unter Internet -> Online-Monitor hinter den genutzten DNS-Servern jetzt (DoT verschlüsselt) stehen.
Archiv: Domain Name System Security Extensions (DNSSEC)
How to Change DNS Servers on Most Popular Routers
(Updated on March 12, 2022)
Change DNS Server on Linksys
Change DNS Server on a NetGear Router
Change DNS Server on D-Link
Change DNS Server on Asus
Change DNS Server on TP-Link
Change DNS Server on Cisco
Change DNS Server on TRENDnet
Change DNS Server on Belkin
Change DNS Server on Buffalo
Change DNS Server on Google Wifi
How to Change Your DNS on Any Device
(20.01.2024)
A Domain Name System (DNS) matches human-friendly domain names to computer-friendly IP addresses.
When you type in a domain name like cyberghost.com, for example, your web browser sends the request to your ISP via your router. Your ISP refers the request to its default DNS server. The DNS server then supplies the relevant IP address so your browser can load the appropriate page.
A DNS also saves a local copy or cache of sites you’ve recently visited on your device for quick and easy reference.
It seems like a streamlined service; what could go wrong? Check the following reasons why you should change your DNS.
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
Known DNS Providers
Here we suggest a list of trusted DNS providers.
The OpenDNSSEC project
OpenDNSSEC is a policy-based zone signer that automates the process of keeping track of DNSSEC keys and the signing of zones. The goal of the project is to make DNSSEC easy to deploy. The project is Open Source and intends to drive adoption of Domain Name System Security Extensions (DNSSEC) to further enhance Internet security.
DNSSEC History Project
DNS Security Prehistory
Few technologies are more critical to the operation of the Internet than the Domain Name System (DNS). The initial design of DNS did not take security into consideration, which was not unusual for protocols designed in the early 1980s. At the time of its development, and for many years there after, DNS had functioned without many formal security mechanisms, thereby making it vulnerable to DNS spoofing and other malicious attacks.
Determining the Need for DNSSEC
[What drove the work? Big picture issues. Surely this includes the demonstrations of cache poisoning by Steve Bellovin and Tsutomu Shimomura in the early 1990s and the similar work by Dan Kaminsky in 2008, but it may include much other activity.]
(…)
Cache Poisoning
The earliest known security problem with DNS was DNS cache poisoning, also sometimes called DNS spoofing. DNS cache poisoning happens when a DNS server downstream from the authoritative one returns incorrect data to queries for names or IP addresses. This occurs because an attacker has ‘poisoned’ the cache of the downstream DNS server to return the malicious response. DNS cache poisoning is a subset of a group of problems computer scientists often classify as cache invalidation.
This problem, known to the Computer Science Research Group(CSRG) at U.C. Berkeley since 1989, was finally described in a paper by Steve Bellovin in 1993. Bellovin initially put off publishing the paper out of fear the information would be exploited.
(…)
Concern over DNS cache poisoning, specifically that the leak would become publicly known, existed from 1989 to 1995.
About: OpenDNSSEC was created as an open-source turn-key solution for DNSSEC. It secures zone data just before it is published in an authoritative name server.
Why DNSSEC?
Many internet protocol hinge on DNS, but the data in DNS caches has become so vulnerable to attack that it cannot be relied upon anymore. The added authenticity in DNSSEC makes sure that such attacks have no effect.
That is, if
– Zones are verified. Easy-to-deploy software for DNSSEC-aware name resolving (and caching) exists, for example Unbound or properly configured Bind9.
– Zones are secured. Easy-to-deploy solutions for DNSSEC did not yet exist, at least not in open source. Hence the OpenDNSSEC project.
More on the problems with DNS and about deploying DNSSEC can be found in this white paper.
DNS over TLS (DoT) auf FritzBox aktivieren
Zu guter Letzt können wir die Einstellungen noch prüfen. Bei der FritzBox sollte unter Internet -> Online-Monitor hinter den genutzten DNS-Servern jetzt (DoT verschlüsselt) stehen.
How to Change DNS Servers on Most Popular Routers
(Updated on March 12, 2022)
Change DNS Server on Linksys
Change DNS Server on a NetGear Router
Change DNS Server on D-Link
Change DNS Server on Asus
Change DNS Server on TP-Link
Change DNS Server on Cisco
Change DNS Server on TRENDnet
Change DNS Server on Belkin
Change DNS Server on Buffalo
Change DNS Server on Google Wifi
Known DNS Providers
Here we suggest a list of trusted DNS providers.
How to Change Your DNS on Any Device
(20.01.2024)
A Domain Name System (DNS) matches human-friendly domain names to computer-friendly IP addresses.
When you type in a domain name like cyberghost.com, for example, your web browser sends the request to your ISP via your router. Your ISP refers the request to its default DNS server. The DNS server then supplies the relevant IP address so your browser can load the appropriate page.
A DNS also saves a local copy or cache of sites you’ve recently visited on your device for quick and easy reference.
It seems like a streamlined service; what could go wrong? Check the following reasons why you should change your DNS.
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
DNSSEC History Project
DNS Security Prehistory
Few technologies are more critical to the operation of the Internet than the Domain Name System (DNS). The initial design of DNS did not take security into consideration, which was not unusual for protocols designed in the early 1980s. At the time of its development, and for many years there after, DNS had functioned without many formal security mechanisms, thereby making it vulnerable to DNS spoofing and other malicious attacks.
Determining the Need for DNSSEC
[What drove the work? Big picture issues. Surely this includes the demonstrations of cache poisoning by Steve Bellovin and Tsutomu Shimomura in the early 1990s and the similar work by Dan Kaminsky in 2008, but it may include much other activity.]
(…)
Cache Poisoning
The earliest known security problem with DNS was DNS cache poisoning, also sometimes called DNS spoofing. DNS cache poisoning happens when a DNS server downstream from the authoritative one returns incorrect data to queries for names or IP addresses. This occurs because an attacker has ‘poisoned’ the cache of the downstream DNS server to return the malicious response. DNS cache poisoning is a subset of a group of problems computer scientists often classify as cache invalidation.
This problem, known to the Computer Science Research Group(CSRG) at U.C. Berkeley since 1989, was finally described in a paper by Steve Bellovin in 1993. Bellovin initially put off publishing the paper out of fear the information would be exploited.
(…)
Concern over DNS cache poisoning, specifically that the leak would become publicly known, existed from 1989 to 1995.
Known DNS Providers
Here we suggest a list of trusted DNS providers.
dnscheck.tools – inspect your dns resolvers
(…)
dnscheck.tools – inspect your dns resolvers
(…)
Known DNS Providers
Here we suggest a list of trusted DNS providers.
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
Known DNS Providers
Here we suggest a list of trusted DNS providers.
Known DNS Providers
Here we suggest a list of trusted DNS providers.
DNS sobre TLS: privacidad en el DNS
(11.07.2017)
NIC Chile dispone de un „servidor de prueba“ puesto a disposición de los desarrolladores y primeros usuarios en adoptar y probar esta tecnología. Este servidor es completamente funcional, y se invita a la comunidad de .CL a utilizarlo consiguiendo tiempos de respuesta nacionales, sin necesidad de utilizar
servicios en el extranjero. Este servicio se entrega en forma gratuita pero en modo experimental, sin promesas de uptime ni su continuidad en el futuro. Existe registro de las queries con fines de investigación y control de abuso.
Para utilizarlo, los datos son:
IPv4: 200.1.123.46
IPv6: 2001:1398:1:0:200:1:123:46
Ports: 853 y 443
Hostname: dnsotls.lab.nic.cl (con „strict name TLS authentication“)
SPKI: pUd9cZpbm9H8ws0tB55m9BXW4TrD4GZfBAB0ppCziBg= (pin sha256)
Se agradecen los reportes de fallas y feedback técnico a través del correo dnsotls(at)lab.nic.cl.
DNS servers in South Africa
This list of public and free DNS servers is checked continuously. Read how to change your DNS server settings .
DNS servers in Cuba
This list of public and free DNS servers is checked continuously. Read how to change your DNS server settings .
DNS servers in Brazil
This list of public and free DNS servers is checked continuously. Read how to change your DNS server settings .
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
dnscheck.tools – inspect your dns resolvers
(…)
Known DNS Providers
Here we suggest a list of trusted DNS providers.
Public DNS Servers by country
Download valid nameservers as CSV | Plaintext
Download all nameservers as CSV | Plaintext
DNS Server Settings: What are they & which is the best DNS server?
(25th August 2023)
While DoH uses the HTTPS infrastructure to encapsulate DNS queries, DNS-over-TLS focuses on utilising the secure TLS protocol directly.
Attackers target the Domain Name System, the internet’s phone book. Here’s how to fight back
(July 14 2023)
DNS over HTTPS, or DoH, and DNS over TLS send these requests over the UDP transport layer, again using encryption. This prevents man-in-the-middle tampering that could be done with unprotected DNS conversations. The TLS version skips the application-layer protocols, which helps hide this traffic even further and offers a slight performance boost as a result.
dnscheck.tools – inspect your dns resolvers
(…)
Known DNS Providers
Here we suggest a list of trusted DNS providers.
DNS Server Settings: What are they & which is the best DNS server?
(25th August 2023)
While DoH uses the HTTPS infrastructure to encapsulate DNS queries, DNS-over-TLS focuses on utilising the secure TLS protocol directly.
Attackers target the Domain Name System, the internet’s phone book. Here’s how to fight back
(July 14 2023)
DNS over HTTPS, or DoH, and DNS over TLS send these requests over the UDP transport layer, again using encryption. This prevents man-in-the-middle tampering that could be done with unprotected DNS conversations. The TLS version skips the application-layer protocols, which helps hide this traffic even further and offers a slight performance boost as a result.
Known DNS Providers
Here we suggest a list of trusted DNS providers.
dnscheck.tools – inspect your dns resolvers
(…)
List of World Wide Free DNS Servers
ISPs on every country in the world have a pair, two pair or more DNS servers, which are used and assigned at your home or office router when you connect to the Internet…
DNS servers in Brazil
This Brazil DNS server list was last updated in July, 20
Five Eyes, Six Eyes, Europe’s Eyes? Europe-Five Eyes Cooperation in the Face of China
(Mar 27, 2021)
In the short term, Europe may be able to shrug off the illegality of its data-sharing practices under the GDPR, and please privacy advocates with adequacy reviews, but in the long term the violation of Europe’s own data privacy crownpiece is sure to harm its international credibility.
OpenNIC Public Servers
Anonymized logs
No logs kept
DNScrypt
DoH
DoT
Whitelisting
Blocklist
Known DNS Providers
Here we suggest a list of trusted DNS providers.
dnscheck.tools – inspect your dns resolvers
(…)
Tiarap! – Privacy-First DNS Resolver
Block over 300K: ads, ad-tracking, malware and phising domains!
No Logging, dns0x20, No ECS, DNSSEC Validation, Free!
Privacy-First DNS
DNS, IPv4 174.138.21.128 (…)
tls://dot.tiar.app
Verschlüsseltes DNS (DoT) mit der FritzBox nutzen
(1. November 2020)
Unverschlüsselte DNS-Anfragen sind eine potentielle Gefahr für die Privatsphäre und bieten einen einfachen Angriffspunkt für Manipulation.
Derzeit kämpfen zwei konkurrierende Standards darum, diese Probleme zu beheben. DoT (DNS-over-TLS) und DoH (DNS-over-HTTPS). AVM hat sich entschieden mit den FritzBox-Routern DoT zu unterstützen. Seit Firmware 7.20 ist diese Option verfügbar.
Known DNS Providers
Here we suggest a list of trusted DNS providers.
DNS servers in Brazil
This list of public and free DNS servers is checked continuously. Read how to change your DNS server settings .
How to Change DNS Servers on Most Popular Routers
(Updated on March 12, 2022)
Change DNS Server on Linksys
Change DNS Server on a NetGear Router
Change DNS Server on D-Link
Change DNS Server on Asus
Change DNS Server on TP-Link
Change DNS Server on Cisco
Change DNS Server on TRENDnet
Change DNS Server on Belkin
Change DNS Server on Buffalo
Change DNS Server on Google Wifi
DNS-Server ändern: So können Sie die DNS-Einträge ändern
Wollen Sie den DNS-Server aus einem der genannten Gründe oder testweise auf Ihrem Gerät ändern, können Sie das problemlos und ohne großen Aufwand über die Netzwerkeinstellungen des jeweiligen Systems selbst erledigen. Natürlich unterscheiden sich die notwendigen Schritte dabei voneinander – unter Windows werden DNS-Server-Änderungen zum Beispiel anders vorgenommen als auf dem Mac oder einem Android-Gerät. Wir geben Ihnen daher Kurzanleitungen für den DNS-Server-Wechsel auf verschiedenen Plattformen wie Windows 10, macOS, Linux (Ubuntu) oder iOS.
dnscheck.tools – inspect your dns resolvers
(…)
DNS-Server ändern: So können Sie die DNS-Einträge ändern
Wollen Sie den DNS-Server aus einem der genannten Gründe oder testweise auf Ihrem Gerät ändern, können Sie das problemlos und ohne großen Aufwand über die Netzwerkeinstellungen des jeweiligen Systems selbst erledigen. Natürlich unterscheiden sich die notwendigen Schritte dabei voneinander – unter Windows werden DNS-Server-Änderungen zum Beispiel anders vorgenommen als auf dem Mac oder einem Android-Gerät. Wir geben Ihnen daher Kurzanleitungen für den DNS-Server-Wechsel auf verschiedenen Plattformen wie Windows 10, macOS, Linux (Ubuntu) oder iOS.
Verschlüsseltes DNS (DoT) mit der FritzBox nutzen
(1. November 2020)
Unverschlüsselte DNS-Anfragen sind eine potentielle Gefahr für die Privatsphäre und bieten einen einfachen Angriffspunkt für Manipulation.
Derzeit kämpfen zwei konkurrierende Standards darum, diese Probleme zu beheben. DoT (DNS-over-TLS) und DoH (DNS-over-HTTPS). AVM hat sich entschieden mit den FritzBox-Routern DoT zu unterstützen. Seit Firmware 7.20 ist diese Option verfügbar.
How to Change DNS Servers on Most Popular Routers
(Updated on March 12, 2022)
Change DNS Server on Linksys
Change DNS Server on a NetGear Router
Change DNS Server on D-Link
Change DNS Server on Asus
Change DNS Server on TP-Link
Change DNS Server on Cisco
Change DNS Server on TRENDnet
Change DNS Server on Belkin
Change DNS Server on Buffalo
Change DNS Server on Google Wifi
List of Public DNS Servers
DNS server has a very powerful function in network topology. Please keep in mind that it might log your queries (which is a huge information leak).
Further, not all of the DNS servers listed above return correct answers in any case. Some of them return failures for harmful or malicious sites. Check the operators website for more information on this topic.
For security reasons, it is required to use DNS servers which support DNSSEC. For privacy and availability reasons, avoid using just one providers‘ DNS servers.
dnscheck.tools – inspect your dns resolvers
(…)
dnscheck.tools – inspect your dns resolvers
(…)
List of Public DNS Servers
DNS server has a very powerful function in network topology. Please keep in mind that it might log your queries (which is a huge information leak).
Further, not all of the DNS servers listed above return correct answers in any case. Some of them return failures for harmful or malicious sites. Check the operators website for more information on this topic.
For security reasons, it is required to use DNS servers which support DNSSEC. For privacy and availability reasons, avoid using just one providers‘ DNS servers.
dnscheck.tools – inspect your dns resolvers
(…)
List of Public DNS Servers
DNS server has a very powerful function in network topology. Please keep in mind that it might log your queries (which is a huge information leak).
Further, not all of the DNS servers listed above return correct answers in any case. Some of them return failures for harmful or malicious sites. Check the operators website for more information on this topic.
For security reasons, it is required to use DNS servers which support DNSSEC. For privacy and availability reasons, avoid using just one providers‘ DNS servers.
dnscheck.tools – inspect your dns resolvers
(…)
dnscheck.tools – inspect your dns resolvers
(…)
DNS sobre TLS: privacidad en el DNS
(11.07.2017)
NIC Chile dispone de un „servidor de prueba“ puesto a disposición de los desarrolladores y primeros usuarios en adoptar y probar esta tecnología. Este servidor es completamente funcional, y se invita a la comunidad de .CL a utilizarlo consiguiendo tiempos de respuesta nacionales, sin necesidad de utilizar
servicios en el extranjero. Este servicio se entrega en forma gratuita pero en modo experimental, sin promesas de uptime ni su continuidad en el futuro. Existe registro de las queries con fines de investigación y control de abuso.
Para utilizarlo, los datos son:
IPv4: 200.1.123.46
IPv6: 2001:1398:1:0:200:1:123:46
Ports: 853 y 443
Hostname: dnsotls.lab.nic.cl (con „strict name TLS authentication“)
SPKI: pUd9cZpbm9H8ws0tB55m9BXW4TrD4GZfBAB0ppCziBg= (pin sha256)
Se agradecen los reportes de fallas y feedback técnico a través del correo dnsotls(at)lab.nic.cl.
List of Public DNS Servers
DNS server has a very powerful function in network topology. Please keep in mind that it might log your queries (which is a huge information leak).
Further, not all of the DNS servers listed above return correct answers in any case. Some of them return failures for harmful or malicious sites. Check the operators website for more information on this topic.
For security reasons, it is required to use DNS servers which support DNSSEC. For privacy and availability reasons, avoid using just one providers‘ DNS servers.
DNS sobre TLS: privacidad en el DNS
(11.07.2017)
NIC Chile dispone de un „servidor de prueba“ puesto a disposición de los desarrolladores y primeros usuarios en adoptar y probar esta tecnología. Este servidor es completamente funcional, y se invita a la comunidad de .CL a utilizarlo consiguiendo tiempos de respuesta nacionales, sin necesidad de utilizar
servicios en el extranjero. Este servicio se entrega en forma gratuita pero en modo experimental, sin promesas de uptime ni su continuidad en el futuro. Existe registro de las queries con fines de investigación y control de abuso.
Para utilizarlo, los datos son:
IPv4: 200.1.123.46
IPv6: 2001:1398:1:0:200:1:123:46
Ports: 853 y 443
Hostname: dnsotls.lab.nic.cl (con „strict name TLS authentication“)
SPKI: pUd9cZpbm9H8ws0tB55m9BXW4TrD4GZfBAB0ppCziBg= (pin sha256)
Se agradecen los reportes de fallas y feedback técnico a través del correo dnsotls(at)lab.nic.cl.
dnscheck.tools – inspect your dns resolvers
(…)
dnscheck.tools – inspect your dns resolvers
(…)
What Is DNS Security? Why It Matters for Your Business
(02.09.2022)
In 2022 and beyond, the industry and society have matured, and we‘re now focusing on security suites and infrastructure unification, as well as managing cyber risks. The opportunities and driving factors of one decade do not take the place of those in the one before it.
Instead, they broaden the perspective and emphasize well-known ideas in new ways. One such example is DNS – although its roots can be traced back to 1966, DNS security must be a part of every robust cybersecurity strategy today.