Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. ×

Submission + - IP over DNS tunneling has evolved ( writes: "Twelve years ago, the first Slashdot article about the IP over DNS technology was published:

In those times, there was only one publicly available IP over DNS client: NSTX, targeting Unix-like operating systems only, cited in the article.

Today, you will find at least 9 software packages for this purpose: VPN-over-DNS, Iodine, Element53, MagicTunnel, Heyoka, Dns2tcp, NSTX, OzymanDNS and DNScat, making the technology available for Android, Mac OS X, Windows, Linux and Unix-like platforms. The only general-purpose operating system that does not support this technology is iOS: even if you can find some VPN clients for iOS (mainly IPsec, PPTP and VPN over SSL clients), only major VPN technology vendors, like Cisco, can afford to publish one: publishing an application that can make use of iOS low-layer networking protocols needs you to establish an agreement with Apple. Not so easy...

The interesting thing about this technology is that it lets you by-pass the captive portal on any public Wi-Fi network: an easy way to connect to the Internet without having to sign in with your credit card. Maybe not legal.

The strange thing is that even if, for many years, Next Generation Firewalls that can filter such tunnels are available (they correlate queries and filter only those used to tunnel data), you can try nowadays some of the previously listed tools on public Wi-Fi HotSpots with captive portals (hostels, train stations, airports...) and you will see that no one of these firewalls has been deployed on those networks!

A public forum about IP over DNS is available at"


Submission + - Genetically Engineering Babies a Moral Obligation says Ethicist

Hugh Pickens writes writes: "The Telegraph reports that Oxford Professor Julian Savulescu, an expert in practical ethics, says that creating so-called designer babies could be considered a "moral obligation" as it makes them grow up into "ethically better children" and that we should actively give parents the choice to screen out personality flaws in their children such as potential alcoholism, psychopathy and disposition to violence as it means they will then be less likely to harm themselves and others. "Surely trying to ensure that your children have the best, or a good enough, opportunity for a great life is responsible parenting?" writes Savulescu, editor-in-chief of the Journal of Medical Ethics. "So where genetic selection aims to bring out a trait that clearly benefits an individual and society, we should allow parents the choice. To do otherwise is to consign those who come after us to the ball and chain of our squeamishness and irrationality." Savulescu says that we already routinely screen embryos and fetuses for conditions such as cystic fibrosis and Down’s syndrome and couples can test embryos for inherited bowel and breast cancer genes. "Whether we like it or not, the future of humanity is in our hands now. Rather than fearing genetics, we should embrace it. We can do better than chance.""

Slashdot Top Deals

What sin has not been committed in the name of efficiency?