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.
Archiv: Linux (operating system)
Open DNSSEC Validating Resolvers
What is the CZ.NIC ODVR?
CZ.NIC ODVR are Open DNSSEC Validating Resolvers that you might freely use instead of the standard DNS resolvers offered by your Internet service provider.
What is DNS?
DNS (Domain Name System) acts like a phone directory for the internet IP addresses. It pairs the numeric IP addresses with labels, called domain names, that a user can easily remember and type in their web browser (e.g., if they look for a company called XYZ, they type in www.xyz.com). Just like a phone, the browser then searches the „directory“, looks up the right record, automatically connects to an IP address assigned to that domain name and finally displays the company’s webpage to the user.
More information is on the page About domains and DNS.
What is DNSSEC?
DNSSEC is an extension to the Domain Name System (DNS) that enhances its security. DNSSEC guarantees its users that the information they have received from DNS was provided by a right source, is complete and its integrity has not been tampered with. DNSSEC ensures the credibility of DNS information.
More information can be found on the page How DNSSEC works.
How to setup CZ.NIC resolvers?
Change your network configuration so that it uses resolvers with IP addresses 193.17.47.1 and 185.43.135.1.
(…)
You can verify the correctness of your setting via the test bellow.
Open DNSSEC Validating Resolvers
Have I set up ODVR correctly?
You can verify the correctness of your setting via the test bellow.
(…)
Using ODVR for TCP port 853 (DoT) (IP addresses: 193.17.47.1 and 185.43.135.1 / 2001:148f:ffff::1 and 2001:148f:fffe::1)
How to set DNS over TLS on Linux
Follow this quick guide to start using DNS.SB on your Linux device.
How to check for TLS version 1.3 in Linux, Windows, and Chrome
(Dec 8, 2020)
Due to the retirement of OpenSSL v1.0.2 from support. This will result in the addition of support for TLS v1.3 and its cipher suites, as well as 37 new cipher suites for TLS v1.2. There are several performance and security enhancements in TLS v1.3 when upgraded products are at both ends of the connection.
How to set DNS over TLS on Linux
Follow this quick guide to start using DNS.SB on your Linux device.
How to set DNS over TLS on Linux
For modern Linux distributions, we recommend using systemd-resolved
#
1. Enable systemd-resolved
systemctl start systemd-resolved
#
2. Open /etc/systemd/resolved.conf
vim /etc/systemd/resolved.conf
How to set DNS over TLS on Linux
For modern Linux distributions, we recommend using systemd-resolved
#
1. Enable systemd-resolved
systemctl start systemd-resolved
#
2. Open /etc/systemd/resolved.conf
vim /etc/systemd/resolved.conf
…..
16 Best Web Browsers I Discovered for Linux in 2020
Web Browser is a software that provides an interface to surf the web. With an introduction in around 1991, their development and advancement have advanced many folds till the current stage which we see today.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
UltraSurf Alternatives for Linux
UltraSurf is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality.
(…)
If that doesn’t suit you, our users have ranked more than 50 alternatives to UltraSurf and loads of them are available for Linux so hopefully you can find a suitable replacement.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
UltraSurf Alternatives for Linux
UltraSurf is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality.
(…)
If that doesn’t suit you, our users have ranked more than 50 alternatives to UltraSurf and loads of them are available for Linux so hopefully you can find a suitable replacement.
16 Best Web Browsers I Discovered for Linux in 2020
Web Browser is a software that provides an interface to surf the web. With an introduction in around 1991, their development and advancement have advanced many folds till the current stage which we see today.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
How to check for TLS version 1.3 in Linux, Windows, and Chrome
(Dec 8, 2020)
Due to the retirement of OpenSSL v1.0.2 from support. This will result in the addition of support for TLS v1.3 and its cipher suites, as well as 37 new cipher suites for TLS v1.2. There are several performance and security enhancements in TLS v1.3 when upgraded products are at both ends of the connection.
16 Best Web Browsers I Discovered for Linux in 2020
Web Browser is a software that provides an interface to surf the web. With an introduction in around 1991, their development and advancement have advanced many folds till the current stage which we see today.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
16 Best Web Browsers I Discovered for Linux in 2020
Web Browser is a software that provides an interface to surf the web. With an introduction in around 1991, their development and advancement have advanced many folds till the current stage which we see today.
Auch das Linux Magazin lässt sich in die Agitation gegen kritische Medien einspannen. Was sind das denn nur für Waschlappen!
Ein Leser der NachDenkSeiten, J. S., dessen Klarnamen wir nicht nennen, weil er Sorge hat, diskreditiert zu werden, und wir diese Sorge verstehen, hat uns darauf aufmerksam gemacht, dass auch das Linux Magazin die bösartige, unberechtigte Bewertung der NachDenkSeiten als rechtslastig übernimmt. Soweit sind wir schon: Selbst in Medien, die sich kritischen Verstand und Unabhängigkeit eigentlich leisten könnten, wird nachgeplappert, was die Agitatoren der westlichen Mehrheitsmeinung so verbreiten. Es folgt die Mail des NachDenkSeiten-Lesers und seine Mail an das Linux Magazin. Wir veröffentlichen dies auch deshalb, weil wir wie J. S. auch immer wieder feststellen, dass und wie viel geglaubt wird, was heute so an Fehlinformation und Hetze verbreitet wird.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
How To Use DNSCrypt To Encrypt DNS Traffic On Linux
DNSCrypt is a local program that, when set up correctly on any Linux PC, can lock up all DNS traffic and ensure everything safely goes to the right place.
Most Linux distributions have DNSCrypt in their software sources, so installing it is a breeze. Open up a terminal and enter the commands that correspond to your Linux distribution.
Spoofing: Neue DNS-Angriffsmethode entdeckt
(13. November 2020)
Nachdem der Quellport de-randomisiert worden sei, sei es möglich gewesen, eine böswillige IP-Adresse einzuschleusen und so erfolgreich einen DNS-Cache-Poisoning-Angriff durchzuführen. Die Details haben die Forscher im Paper „DNS Cache Poisoning Attack Reloaded: Revolutions with Side Channels“ publiziert.
Weitere Experimente unter realistischen Serverkonfigurationen und Netzwerkbedingungen würden zudem zeigen, dass ihre grundlegende Methode leicht an das gesamte DNS-System angepasst werden könnte.
SAD Reality for DNS
The researchers determined that 35% of open resolvers are open to the attack, as well as four of six home routers made by well-known brands.
They also found that 12 of 14 popular public resolvers (now 11—Cloudflare says they’ve corrected their systems) are susceptible. Even a patched DNS server could be made vulnerable by an unpatched or misconfigured NAT gateway.
Their 19-page paper on the exploit includes lists of devices and services tested. They have since set up a SAD DNS website featuring a Q&A and a tool that anyone can use to determine whether their DNS is vulnerable.
The flaw is being tracked as CVE-2020-25705, and affects Linux 3.18 – 5.10, Windows Server 2019 version 1809 and newer, macOS 10.15 and newer, and FreeBSD 12.1.0 and newer. The researchers did not test earlier versions of the listed operating system.
Benutzt hier jemand Linux? Und benutzt TCP? Und hat SACK aktiviert?
17.6.2019
Linus Torvalds ist mal weg: Auszeit um zu lernen, kein Arsch zu sein
Ich nehme jetzt eine Auszeit und hole mir Hilfe dabei, die Gefühle anderer Menschen besser verstehen zu können und angemessen auf sie zu reagieren“, kündigte der Linux-Gründer an. Um anderslautenden Gerüchten vorzubeugen, stellte er klar, dass sein Rückzug keineswegs einem Burnout geschuldet sei und er definitiv wieder zurückkommen wolle.
rsync
Andrew Tridgell and Paul Mackerras wrote the original rsync, which was first announced on 19 June 1996. Tridgell discusses the design, implementation, and performance of rsync in chapters 3 through 5 of his Ph.D. thesis in 1999. It is currently maintained by Wayne Davison.
Because of the flexibility, speed, and scriptability of rsync, it has become a standard Linux utility, included in all popular Linux distributions.
Using the Command Line to Decrypt a Message on Linux
If you have disabled the PGP plugin from your mail client and saved a copy of an encrypted email to your desktop, this guide will help you read that message in as safe a way as possible given what we know about the vulnerability described by EFAIL.
Note that the first three steps (opening the terminal) will vary between desktop environments.
Open the Activities view by clicking all the way in the top left corner of your screen.
CPU Utilization Is Wrong on PCs, and Getting Worse Every Year
But the takeaway is this: CPU utilization, as reported by Windows, is often incorrect. All too often, what looks like CPU usage is actually a stalled CPU waiting to do something useful.