DNS

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FritzBox users: protect your network for free!

If you are living in Germany, Austria or Switzerland, there is a high chance that you are using one of the AVM’s FritzBox for your broadband connection. The FritzBox is a very small device which runs a PowerPC processor and between 16 and 32 MB RAM. This is almost nothing! So, you can’t install antivirus or some security solution to filter the URLs you visit via this device. There is, however, a very easy and good way to protect your network. All new models of FritzBox have the possibility to set a special DNS server which can be used for various other purposes, other than simple DNS. For example, using OpenDNS you can filter the DNS requests which point to malware, phishing and other potentially unwanted websites (a basic parental control). The good part is that it is very, very simple to configure this great feature. Here is how in English/German: Login on your fritz.box/ Go to Internet->Connection data / Internet->Zugangsdaten Click on DNS Server / Klick auf DNS-Server Choose Alternative DNS Server / Wähle “Andere DNSv4-Server Write the IPs: / Schreibe diese IP Adressen: 208.67.222.222 8.8.8.8 Click on Apply / Klick auf Übernehmen The 8.8.8.8 is the Google DNS server which has also a…


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Quoted in the Networkworld.com because of the DNSChanger malware

http://www.networkworld.com/news/2012/012412-authorities-prepare-to-close-down-255242.html?hpg1=bn   “If your computer was infected at some point in time and it was using one of the DNS servers which are now controlled by FBI, after March 8, it will no longer be able to make any DNS requests through these servers,” Avira product manager and data security expert Sorin Mustaca said in a blog post. “In layman’s terms, you will no longer be able to browse the web, read emails and do everything you usually do on Internet.”     Article written in Techblog on Monday,23.1.2012, question from the journalist sent on Tuesday with deadline one hour (or less), article published the same day. I love online media 🙂  


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How to check if your DNS Server was hacked

Post initially published in Avira Techblog. You must have heard already about the already “famous” malware DNSChanger which manipulates the DNS settings of the computer in order to silently direct the users to malicious websites. FBI and others took action against this malware and in November 2011 have managed to break the botnet. According to FBI, more than 4 million computers were affected world-wide. The thieves manipulated DNS entries in order to block antivirus programs and the operating systems to update delivering this way even more malware on users’ computers. The DNSChanger malware was used also to redirect users to rogue servers controlled by the fraudsters, allowing them to control users’ web activity and generate income through online advertising. When FBI shut down the botnet, they also replace the servers which were directing to malicious domains with valid DNS servers. So, if the botnet is shut down why all this trouble? FBI will deactivate those new valid DNS servers on March 8, 2012. If your computer was infected at some point in time and it was using one of the DNS servers which are now controlled by FBI, after March 8, it will no longer be able to make any DNS…



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