Re: Filezilla a security risk
On Sun, 08 Jul 2012 08:55:15 +0200, Slavko wrote:
> Dňa Sun, 8 Jul 2012 00:04:33 -0400 Celejar <celejar@gmail.com> napísal:
>
>> > I use POP3, smtp *and* SSL. They are not mutually exclusive!!
>>
>> Of course not - SSL just encapsulates the POP3 and SMTP protocols.
>
> on this point i have one question. What about standards in SMTP & SSL?
> By mi search, the standard is SMTP + STARTTLS and not SSL + SMTP.
>
> Can someone explain me this, please?
There are different implementations, all of them standarized:
While imaps (tcp/993), pop3s (tcp/995) and smtps (tcp/587) make use of
specific computer ports, imap, pop3 and smtp using "STARTTLS" keep the
same ports that their non-encrypted counterparts (143/110/25) to transmit
clear text credentials protected.
When/why using one or another?
Well, when opening ports is not possible (consider a restricted
environment) or as Wikipedia¹ explains, independency and transparency
seen as a plus when using this extension.
¹http://en.wikipedia.org/wiki/STARTTLS
Greetings,
--
Camaleón
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