EFF adds ASCII art to its DNS

#1

Post by legind » Thu, Mar 13, 2014, 10:43 PM UTC

EFF adds ASCII art to its DNS
pastebin.ca

Re: EFF adds ASCII art to its DNS

#2

Post by zmanian » Thu, Mar 13, 2014, 11:58 PM UTC

Would love a how to....

Re: EFF adds ASCII art to its DNS

#3

Post by dijit » Thu, Mar 13, 2014, 11:59 PM UTC

So, they don't use IP Telephony then?

You're aware you can add whatever you want into DNS, it doesn't have to mean anything that computers understand right? you /could/ make your A records the intro to Star Wars- but nobody will be able to use your site.

TXT is a much better option imho, or.. y'know, not doing this.

Re: EFF adds ASCII art to its DNS

#4

Post by nness » Fri, Mar 14, 2014, 12:00 AM UTC

That's brilliant! (reminds me; wasn't there a blog that was published in HTTP headers once?)

Re: EFF adds ASCII art to its DNS

#5

Post by EricBurnett » Fri, Mar 14, 2014, 12:05 AM UTC

My first thought on seeing that is it would be great for a DNS amplification attack. Not sure the value as an advertisement though...

Re: EFF adds ASCII art to its DNS

#6

Post by dijit » Fri, Mar 14, 2014, 12:09 AM UTC

EricBurnett wrote: post #5

My first thought on seeing that is it would be great for a DNS amplification attack. Not sure the value as an advertisement though...

I think it's too big for UDP, it'll renegotiate TCP for anything over a certain size.

thus DNS amplification is impossible because spoofing the TCP source would fail a handshake.

Re: EFF adds ASCII art to its DNS

#7

Post by orik » Fri, Mar 14, 2014, 12:10 AM UTC

dijit wrote: post #3

So, they don't use IP Telephony then? You're aware you can add whatever you want into DNS, it doesn't have to mean anything that computers understand right? you /could/ make your A records the intro to Star Wars- but nobody will be able to use your site. TXT is a much better option imho, or.. y'know, not doing this.

Well I guess I need a new alt. dns to provision phones with.

Re: EFF adds ASCII art to its DNS

#8

Post by m_ram » Fri, Mar 14, 2014, 12:11 AM UTC

Here's the whole thing unsorted: http://pastebin.com/z7BzEnhC

and in case you want to learn about NAPTR: http://www.ietf.org/rfc/rfc2915.txt

Re: EFF adds ASCII art to its DNS

#9

Post by legind » Fri, Mar 14, 2014, 12:13 AM UTC

zmanian wrote: post #2

Would love a how to....

http://www.cambus.net/storing-ascii-art-in-the-dns/

Re: EFF adds ASCII art to its DNS

#10

Post by legind » Fri, Mar 14, 2014, 12:16 AM UTC

dijit wrote: post #3

So, they don't use IP Telephony then? You're aware you can add whatever you want into DNS, it doesn't have to mean anything that computers understand right? you /could/ make your A records the intro to Star Wars- but nobody will be able to use your site. TXT is a much better option imho, or.. y'know, not doing this.

TXT isn't an option because the records themselves are unsorted. Use the above command without the pipe to sort looks weird, but not as weird as TXT would.