Matias Vangsnes

Internet, communication and the concept of open source

Sorted by the topic "DNS"

i-DNS.net Files Legal Rights Objections Against IDN gTLD Applications Filed by Chinese Internet Authorities

Tuesday, April 9th, 2013

Back to the Future: Mike Ullman Rejoins JCP as CEOCNBC JC Penney CEO Ron Johnson is out, a source familiar with the situation said. Mike Ullman will rejoin the company … Article source: http://finance.yahoo.com/news/dns-net-files-legal-rights-181400388.html

Yandex launches public DNS service with malicious URL filtering

Friday, April 5th, 2013

Russian Web search firm Yandex launched a public DNS (Domain Name System) resolution service on Thursday that leverages the company’s existing website scanning technology to block access to malicious and adult-rated sites. The DNS acts like a phone book for Internet domain names. Before accessing any website, a computer must first find out its corresponding [...]

Secure64 Doubles Performance and Attack Resistance of DNS Cache Product

Wednesday, April 3rd, 2013

Improved performance on the latest HP Integrity servers delivers total cost of ownership savings of 48 percent Denver, CO (PRWEB) April 03, 2013 Secure64 Software Corporation announced that its DNS Cache product has increased its performance and resistance to denial-of-service attacks 100 percent on the new HP Integrity rx2800 i4 and BL860c i4 servers running [...]

Open DNS Resolvers

Wednesday, April 3rd, 2013

Three vectors were exploited in the recent DDoS attack against Spamhaus: 1) Amplification of DNS queries through the use of DNSSEC signed data 2) Spoofed source addresses due to lack of ingress filtering (BCP-38) on originating networks 3) Utilisation of multiple open DNS resolvers While 1) is unavoidable simply due to the additional data that [...]

DNS Made Easy Calls For The Cleanup Of Open DNS Resolvers To Reduce DDoS Attacks

Tuesday, April 2nd, 2013

DNS Made Easy, the leading provider of anycast managed DNS hosting, has requested that all responsible members of the Internet community make a concerted effort to close down the open DNS recursive resolvers that are frequently used for packet amplification distributed denial of service (DDoS) attacks. Reston, VA (PRWEB) April 02, 2013 DNS Made Easy, [...]

DrDoS DNS Reflection Attacks Analysis

Tuesday, April 2nd, 2013

The DNS Distributed Reflection Denial of Service (DrDoS) technique relies on the exploitation of the Domain Name System (DNS) Internet protocol. Malicious actors, or hackers, will spoof, or pretend to be, the IP address of their primary target and then send application requests to a list of victim DNS servers. When each DNS server receives [...]

How To Stop DNS Amplification DDoS Attack

Tuesday, April 2nd, 2013

Last week, the largest DDoS on record hit the Internet leveraging what is known as a DNS Amplification attack. The U.S. Government’s US-CERT is now warning about the risks associated with DNS Amplification attacks and providing some guidance on how they can be mitigated. The first step in preventing and mitigating against the risks of [...]

Fix your DNS servers or risk aiding DDoS attacks

Monday, April 1st, 2013

Although this week’s large-scale DDoS attack against Spamhaus may not have been as crippling as early reports suggested, they were noteworthy in that they shined spotlights on a couple of the Internet’s many underlying weaknesses. Among them are open DNS resolvers, which enable a technique called DNS amplification wherein attackers bombard target servers with as [...]

U.S. CERT Issues Alert on DNS Amplification Attacks

Monday, April 1st, 2013

Neil Schwartzman writes to report that U.S. Cert issued Alert TA13-088A on Friday March 29, 2013. “It is a solid how-to guide to test for, and remediate DNS configurations that can be used for Distributed Denial of Service attacks.” From the Alert: “While the attacks are difficult to prevent, network operators can implement several possible [...]

Flaw leaves servers vulnerable to denial-of-service attacks

Saturday, March 30th, 2013

A flaw in the widely used BIND DNS (Domain Name System) software can be exploited by remote attackers to crash DNS servers and affect the operation of other programs running on the same machines. The flaw stems from the way regular expressions are processed by the libdns library that’s part of the BIND software distribution. [...]

DNS Reflection/Amplification Attack: Proved

Friday, March 29th, 2013

Last year there was a “threat” by anonymous group to black out Internet by using DNS Reflection/Amplification attack against the Internet DNS Root servers. I even wrote a little article about it: “End of the world/Internet” In the article I was questioning if this was even possible and what was needed as general interest and [...]

Critical denial-of-service flaw in BIND software puts DNS servers at risk

Friday, March 29th, 2013

A flaw in the widely used BIND DNS (Domain Name System) software can be exploited by remote attackers to crash DNS servers and affect the operation of other programs running on the same machines. The flaw stems from the way regular expressions are processed by the libdns library that’s part of the BIND software distribution. [...]

How to Freak Out, Appropriately, About the Internet War Apocalypse

Thursday, March 28th, 2013

There has been a wave of skepticism about the severity of this month’s “biggest ever” denial-of-service attack — that a fight between website hosts and spam fighters may or may not have sunk the DNS servers that run the entire Internet — and, well, it’s OK to be a little scared of the enormity of [...]

Misconfigured Open DNS Resolvers Key To Massive DDoS Attacks

Thursday, March 28th, 2013

Maybe this is over my head. But how would one rung a “safe” DNS server then? My interpretation of the article basically says to let only specific people use your DNS server, but then how would a company run a public resolver? For example, Google runs open public name servers on 8.8.8.8 and 8.8.4.4, same [...]

How Spamhaus’ attackers turned DNS into a weapon of mass destruction

Thursday, March 28th, 2013

A little more than a year ago, details emerged about an effort by some members of the hacktivist group Anonymous to build a new weapon to replace their aging denial-of-service arsenal. The new weapon would use the Internet’s Domain Name Service as a force-multiplier to bring the servers of those who offended the group to [...]

Spamhaus attacks expose huge open DNS server dangers

Thursday, March 28th, 2013

Massive distributed denial of service attacks on Spamhaus this week focused widespread attention on the huge security threats posed by millions of poorly configured Internet Domain Name System (DNS) servers. The attacks on Spamhaus that began March 19 were apparently launched by a group opposed to the Geneva, Switzerland-based volunteer organization’s antispam work. Several security [...]

IT Pro confession: How I helped in the BIGGEST DDoS OF ALL TIME

Thursday, March 28th, 2013

Sysdamin blog I contributed to the massive DDOS attack against Spamhaus. What flowed through my network wasn’t huge – it averaged 500Kbit/sec – but it contributed. This occurred because I made a simple configuration error when setting up a DNS server; it’s fixed now, so let’s do an autopsy. The problem I should start off [...]

The 10-Year-Old Security Sink Hole Slowing the Entire Internet, Explained

Wednesday, March 27th, 2013

The largest known hack attack of its kind brought the Internet to a crawl for users all over the world, but don’t blame the hackers — the outage all stems from an increasingly vulnerable, decade-old security problem with the “Internet’s basic plumbing” that can be easily fixed. A fight between Dutch web hosting service Cyberbunker and [...]

i- DNS .net Files Legal Rights Objections Against IDN gTLD Applications Filed by Chinese Internet Authorities

Monday, March 25th, 2013

Are Michael Dell’s Days as Dell CEO Numbered?Daily Ticker Michael Dell may be at risk of losing his namesake company, after it was confirmed Monday that private equity firm … Article source: http://finance.yahoo.com/news/dns-net-files-legal-rights-181400388.html

Google Dresses Up DNS Lookups with Enhanced Security Features

Friday, March 22nd, 2013

When we talk about DNS lookup, security becomes a common concern. Having considered the same, Google has fully implemented a security feature that ensures a person looking up a website isn’t accidentally directed to a fake one. Launched in 2009, Google’s Public DNS is a free DNS lookup service that helps translate a domain name, [...]

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Technical project manager at Futurniture. General interest in Internet, communication and the concept of open source.

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