Google DNS Service (8.8.8.8) Now Supports DNS-over-TLS Security

Almost every activity on the Internet starts with a DNS query, a key function of the Internet that works as an Internet's directory where your device looks up for the server IP addresses after you enter a human-readable web address (e.g., thehackernews.com).

Since DNS queries are sent in clear text over UDP or TCP without encryption, the information can reveal not only what websites an individual visits but is also vulnerable to spoofing attacks.

To address these problems, Google announced Wednesday that its Public DNS (Domain Name System) service finally supports DNS-over-TLS security protocol, which means that the DNS queries and responses will be communicated over TLS-encrypted TCP connections.

The DNS-over-TLS has been designed to make it harder for man-in-the-middle attackers to manipulate the DNS query or eavesdrop on your Internet connection.

Launched over eight years ago, Google Public DNS, at IP addresses 8.8.8.8 and 8.8.4.4, is world's largest public Domain Name Service recursive resolver that most people prefer instead of using default DNS services from their ISPs or carriers.

"Starting today, users can secure queries between their devices and Google Public DNS with DNS-over-TLS, preserving their privacy and integrity," Google wrote in a blog post.

"Now users can secure their connections to Google Public DNS with TLS, the same technology that protects their HTTPS web connections."

The search engine giant also says that it implemented the DNS-over-TLS specification along with the RFC 7766 recommendations to minimize the overhead of using TLS, which include support for:

TLS 1.3 for improved security and faster connections
TCP fast open
Pipelining of multiple queries
Out-of-order responses over a single connection to its public DNS server

You can use Google's DNS-over-TLS in two ways, strict or opportunistic privacy.

In strict privacy mode, your device or system will create a secure TLS connection on port 853 to the DNS server, which if fails, the server will respond with an error.

However, in the opportunistic privacy mode, if the client cannot establish a secure connection on port 853, it falls back to communicating with the DNS server on the standard DNS port 53 over UDP or TCP without any security or privacy.

Google has made DNS-over-TLS available for Android 9 Pie users starting Wednesday. So, if you run Android 9 on your smartphone, you can switch to DNS-over-TLS today.

To do so, just head on to the networking section of your Android device's Settings app, and enter "dns.google" as the Private DNS server. More detailed instructions on the DNS-over-TLS are available here.

Google is not the first one to offer DNS-over-TLS. Last year, Cloudflare, well-known Internet performance and security company, also launched its new "1.1.1.1" that it claims to be the world's fastest and privacy-focused secure DNS service, which supports both DNS-over-TLS and DNS-over-HTTPS to ensure maximum privacy.

Tr0ll 1.0 – Vulnhub CTF Challenge Walkthrough

Tr0ll 1.0 is an intentionally vulnerable machine, which is more of a CTF like type than real world scenario. Nevertheless, this machine has its own difficulties and you can learn some new stuff from it. So, let’s start. Enumeration Phase Let’s first run netdiscover to find the IP of our machine. netdiscover -r 192.168.1.1/24 After that, we run our typical nmap scan to see the open ports in the machine. nmap -A -sS -Pn -vv [target] Great we see many interesting stuff here. First of all, there is an open FTP port and we can connect to it with anonymous access . Also there is an open http port, we will run a nikto scan for it. The ssh port will be valuable later. From the nikto scan we got an interesting /secret/ folder. When we get inside, we can understand why the machine got this name. Nothing interesting here, as you can see. we got trolled Let’s connect to the ftp server. When we get asked for the username we type ‘ anonymous ‘ and we l

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Uber fined $1.1 million by UK and Dutch regulators over 2016 data breach

British and Dutch data protection regulators Tuesday hit the ride-sharing company Uber with a total fine of $1,170,892 (~ 1.1 million) for failing to protect its customers’ personal information during a 2016 cyber attack involving millions of users. Late last year, Uber unveiled that the company had suffered a massive data breach in October 2016, exposing names, email addresses and phone numbers of 57 million Uber riders and drivers along with driving license numbers of around 600,000 drivers. Besides this, it was also reported that instead of disclosing the breach at the time, the company paid $100,000 in ransom to the two hackers with access to the stolen data in exchange for keeping the incident secret and deleting the information. Today Britain’s Information Commissioner’s Office (ICO) fined Uber 385,000 pounds ($491,102), while the Dutch Data Protection Authority (Dutch DPA) levied a 600,000 euro ($679,790) penalty on Uber for failing to protect the personal informa

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