Collaborate Disseminate
Do you know how domain names, like microsoft.com, are translated into IP addresses? The Internet uses a service called the Domain Name System (DNS). In this article, you will learn how DNS allows domain names to translated into IP addresses, so that browsers and other Internet-connected apps and services can find webservers. What is DNS? The Domain […] Continue reading What is DNS?
I first ran this command: nslookup www.certifiedhacker.com
This was the output:
Non-authoritative answer:
www.certifiedhacker.com canonical name = certifiedhacker.com.
Name: certifiedhacker.com
Address: 162.241.216.11
When I ran: nslook… Continue reading Why nslookup by ip does not give the same domain name?
Prior to 2008 before Dan Kaminsky finds the DNS issue, the resolver checked only the
Transaction ID. I have seen videos in which it is explained if an attacker manages to send
a DNS response like (example.com: type A, class IN, address 192… Continue reading How does the attacker guess the domain name in a DNS query for DNS cache poisoning
I am using a DNS forwarder, it’s not open to the WWW (runs only in the LAN) and in the dnsmasq logs I noticed something off:
Ignoring query from non-local network
Has my network been breached?
Dnsmasq is running on Pi-Hole with most of th… Continue reading Should I be worried about Ignoring query from non-local network in dnsmasq?
Ukrainian officials sent an urgent request Monday to the nonprofit that stewards domain and IP systems key to the global internet, but security experts are warning that it’s not as simple as it looks. Ukraine asked the Internet Corporation for Assigned Names and Numbers (ICANN) to shut down Russian top-level domains — such as those with the .ru country code — in response to Russia’s use of the internet as a key attack surface for both information operations and cyberattacks. ICANN has not yet responded to the request, Andrii Nabok, head of the expert group for the development of fixed broadband at Ukraine’s Ministry of Digital Transformation and Ukraine’s representative to ICANN, confirmed in an email to CyberScoop. The email, first reported by Rolling Stone, presses ICANN to “revoke, permanently or temporarily” Russian domains, revoke identification certificates for the domains and shut down DNS root servers in the Russian Federation. […]
The post Security experts say Ukraine’s request to shut down Russian domains could hurt civilians appeared first on CyberScoop.
Neustar Security Services has released a report which details the ongoing rise in cyberattacks in 2021, with an unprecedented number of carpet bombing distributed denial of service (DDoS) attacks. Carpet bombing, in which a DDoS attack targets multiple… Continue reading Carpet bombing DDoS attacks spiralled in 2021
I have been learning about DNS over the last few days.
For fun and learning, I wanted to try to set up an authoritative nameserver for my own domains.
I read that creating open resolvers is generally advised against.
I was wondering if it … Continue reading Are authoritative nameservers vulnerable to DNS amplification/reflection or other kinds of attacks?
The ISP would still see the IP address of the VPN you’re connecting to, but it would not be in plaintext compared to normal DNS from what I understand. Should one even bother or just let it be as it is?
Edit: I mean, instead of the ISP get… Continue reading Should you use encrypted DNS before connecting to a VPN?
The European Union Agency for Cybersecurity (ENISA) analyses the security pros and cons of using public DNS resolvers. A core part of the internet is the Domain Name System (DNS) mechanism. All computers, internet browsers and other applications use DN… Continue reading Key drivers for the shift to public DNS resolvers
I’m looking for some guidance regarding security best practices for Infoblox BloxOne.
What I’m looking for specifically are recommended security best practices based on experience using the product.