Roaming, and libresolv being stuck in the 1980's mindset

[Florian Weimer]

On 04/21/2015 09:26 AM, Björn Persson wrote:
> Philip Prindeville wrote:
>> The behavior I’ve seen implies that [Thunderbird] caches the address
>> from the original resolution and keeps trying to reconnect to that.
> 
> Well, if it would cache the address for longer than its time to live,
> then it would be doing it wrong.

There is a widespread belief that web browsers have to do that to
counter certain vulnerabilities (the exploit technique is sometimes
called “DNS rebinding”).


-- 
Florian Weimer / Red Hat Product Security