On Jun 10, 2010, at 9:19 PM, Victor Duchovni wrote:
On Thu, Jun 10, 2010 at 11:31:49PM +0200, Ralf Hildebrandt wrote:
I heard that there are firewalls/security appliances that supposedly
can distinguish somebody using telnet from a machine speaking SMTP.
I must admit, it sounds feasible
* Victor Duchovni victor.ducho...@morganstanley.com:
Anyway. Is there such a thing? Does anybody use such a thing?
Why do you want to discriminate against telnet 25?
What do i know? I don't do this nonsense :) 'm just asking
Administrators of sites that want to trouble-shoot connectivity
Ralf Hildebrandt wrote (on Fri, Jun 11, 2010 at 09:57:42AM +0200):
Administrators of sites that want to trouble-shoot connectivity issues
with your server will use telnet 25 from time to time. There is no
need to block this, it is by far the least likely source of any
significant spam
* N. Yaakov Ziskind aw...@ziskind.us:
Kinda reminds me of the Donald Westlake story, which described a
fine-arts painter who took to counterfeiting $20s; the Secret Service
let him go with a slap on the wrist, they said, when they figured out
it him hours to produce each note. :-)
Exactly
I vaguely remember managing an email server around 1997 and there was
a checkbox to disable telnet access. IIRC it was Imail on windows NT
4, but that was a long time ago. I do remember thinking it was odd
that they could discriminate, but it seemed to work - though I'm not
sure how or why.
-B
On Thu, 10 Jun 2010 23:31:49 +0200, Ralf Hildebrandt
ralf.hildebra...@charite.de wrote:
[...]
I must admit, it sounds feasible (timing between keystrokes etc.),
With respect to detection, is this relevant?
http://en.wikipedia.org/wiki/Telnet#Telnet_data
--
If you have an apple and I have
On 06/10/2010 11:31 PM, Ralf Hildebrandt wrote:
I heard that there are firewalls/security appliances that supposedly
can distinguish somebody using telnet from a machine speaking SMTP.
I must admit, it sounds feasible (timing between keystrokes etc.), but
little useful.
Anyway. Is there such a
On 6/10/2010 5:31 PM, Ralf Hildebrandt wrote:
I heard that there are firewalls/security appliances that supposedly
can distinguish somebody using telnet from a machine speaking SMTP.
I must admit, it sounds feasible (timing between keystrokes etc.), but
little useful.
Anyway. Is there such a
On Thu, Jun 10, 2010 at 6:31 PM, Ralf Hildebrandt
ralf.hildebra...@charite.de wrote:
I heard that there are firewalls/security appliances that supposedly
can distinguish somebody using telnet from a machine speaking SMTP.
I must admit, it sounds feasible (timing between keystrokes etc.), but
+-- Ralf Hildebrandt wrote (Thu, 10-Jun-2010, 23:31 +0200):
|
| I heard that there are firewalls/security appliances that supposedly
| can distinguish somebody using telnet from a machine speaking SMTP.
|
| I must admit, it sounds feasible (timing between keystrokes etc.), but
| little
On Thu, Jun 10, 2010 at 11:31:49PM +0200, Ralf Hildebrandt wrote:
I heard that there are firewalls/security appliances that supposedly
can distinguish somebody using telnet from a machine speaking SMTP.
I must admit, it sounds feasible (timing between keystrokes etc.), but
little useful.
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