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200 messages in org.freebsd.freebsd-securityRe: Detecting sniffers (was: Re: secu...| From | Sent On | Attachments |
|---|---|---|
| 88 earlier messages | ||
| Vincent Poy | Jul 28, 1997 5:57 pm | |
| Vincent Poy | Jul 28, 1997 6:01 pm | |
| Vincent Poy | Jul 28, 1997 6:01 pm | |
| Brian Buchanan | Jul 28, 1997 6:19 pm | |
| Brian Buchanan | Jul 28, 1997 6:24 pm | |
| Matthew N. Dodd | Jul 28, 1997 6:41 pm | |
| Robert Watson | Jul 28, 1997 6:59 pm | |
| Robert Watson | Jul 28, 1997 7:00 pm | |
| Vincent Poy | Jul 28, 1997 7:01 pm | |
| Vincent Poy | Jul 28, 1997 7:04 pm | |
| Matthew N. Dodd | Jul 28, 1997 7:19 pm | |
| John Preisler | Jul 28, 1997 7:31 pm | |
| Brian Buchanan | Jul 28, 1997 7:52 pm | |
| John Dowdal | Jul 28, 1997 8:29 pm | |
| Annelise Anderson | Jul 28, 1997 8:41 pm | |
| Nate Williams | Jul 28, 1997 9:09 pm | |
| Vincent Poy | Jul 28, 1997 9:12 pm | |
| Vincent Poy | Jul 28, 1997 9:15 pm | |
| Vincent Poy | Jul 28, 1997 9:19 pm | |
| Heikki Suonsivu | Jul 28, 1997 9:33 pm | |
| Jan Koum | Jul 28, 1997 9:39 pm | |
| Vincent Poy | Jul 28, 1997 9:49 pm | |
| Jordan K. Hubbard | Jul 28, 1997 10:05 pm | |
| Vincent Poy | Jul 28, 1997 10:14 pm | |
| Gary Palmer | Jul 28, 1997 10:27 pm | |
| Gary Palmer | Jul 28, 1997 10:28 pm | |
| Vincent Poy | Jul 28, 1997 10:35 pm | |
| Vincent Poy | Jul 28, 1997 10:37 pm | |
| John-David Childs | Jul 28, 1997 10:38 pm | |
| Gary Palmer | Jul 28, 1997 10:40 pm | |
| Vincent Poy | Jul 28, 1997 10:44 pm | |
| Gary Palmer | Jul 28, 1997 10:50 pm | |
| Vincent Poy | Jul 28, 1997 10:55 pm | |
| Jordan K. Hubbard | Jul 28, 1997 10:59 pm | |
| Vincent Poy | Jul 28, 1997 11:01 pm | |
| Jordan K. Hubbard | Jul 28, 1997 11:07 pm | |
| Jordan K. Hubbard | Jul 28, 1997 11:11 pm | |
| Jordan K. Hubbard | Jul 28, 1997 11:16 pm | |
| Sergei S. Laskavy | Jul 29, 1997 12:13 am | |
| John-David Childs | Jul 29, 1997 2:09 am | |
| Narvi | Jul 29, 1997 2:48 am | |
| Stephen D. Spencer | Jul 29, 1997 3:43 am | |
| Robert Watson | Jul 29, 1997 5:32 am | |
| Adam Shostack | Jul 29, 1997 5:49 am | |
| Robert Watson | Jul 29, 1997 6:39 am | |
| Nate Williams | Jul 29, 1997 7:19 am | |
| Rodney W. Grimes | Jul 29, 1997 8:58 am | |
| Warner Losh | Jul 29, 1997 9:25 am | |
| Warner Losh | Jul 29, 1997 9:34 am | |
| Christopher Petrilli | Jul 29, 1997 9:52 am | |
| Jim Shankland | Jul 29, 1997 9:57 am | |
| John Dowdal | Jul 29, 1997 10:50 am | |
| Poul-Henning Kamp | Jul 29, 1997 12:05 pm | |
| Bill Pechter | Jul 29, 1997 12:29 pm | |
| Matthew Hunt | Jul 29, 1997 12:37 pm | |
| Christopher Petrilli | Jul 29, 1997 12:43 pm | |
| [Mario1-] | Jul 29, 1997 1:07 pm | |
| Garrett Wollman | Jul 29, 1997 1:07 pm | |
| [Mario1-] | Jul 29, 1997 1:14 pm | |
| sth...@nethelp.no | Jul 29, 1997 1:39 pm | |
| Jordan K. Hubbard | Jul 29, 1997 2:23 pm | |
| Vincent Poy | Jul 29, 1997 2:45 pm | |
| Vincent Poy | Jul 29, 1997 2:57 pm | |
| Vincent Poy | Jul 29, 1997 3:02 pm | |
| sth...@nethelp.no | Jul 29, 1997 3:30 pm | |
| Rocco Lucia | Jul 29, 1997 3:33 pm | |
| Vincent Poy | Jul 29, 1997 3:44 pm | |
| Aaron Bornstein | Jul 29, 1997 3:44 pm | |
| Vincent Poy | Jul 29, 1997 3:54 pm | |
| Vincent Poy | Jul 29, 1997 4:00 pm | |
| Jay D. Nelson | Jul 29, 1997 5:29 pm | |
| Adam Shostack | Jul 29, 1997 6:06 pm | |
| Gary Schrock | Jul 29, 1997 6:10 pm | |
| Adam Shostack | Jul 29, 1997 6:11 pm | |
| Michael Smith | Jul 29, 1997 6:54 pm | |
| Jay D. Nelson | Jul 29, 1997 7:58 pm | |
| Jay D. Nelson | Jul 29, 1997 8:10 pm | |
| Michael Smith | Jul 29, 1997 8:25 pm | |
| Marco Molteni | Jul 30, 1997 5:04 am | |
| James Seng | Jul 30, 1997 5:31 am | |
| Alex G. Bulushev | Jul 30, 1997 5:59 am | |
| Vincent Poy | Jul 30, 1997 6:45 am | |
| Robert Watson | Jul 30, 1997 7:03 am | |
| Nate Williams | Jul 30, 1997 7:48 am | |
| Vincent Poy | Jul 30, 1997 7:54 am | |
| Nate Williams | Jul 30, 1997 8:06 am | |
| Nate Williams | Jul 30, 1997 8:13 am | |
| Vincent Poy | Jul 30, 1997 8:28 am | |
| Vincent Poy | Jul 30, 1997 8:33 am | |
| zoonie | Jul 30, 1997 9:09 am | |
| Poul-Henning Kamp | Jul 30, 1997 9:25 am | |
| Poul-Henning Kamp | Jul 30, 1997 9:31 am | |
| John-David Childs | Jul 30, 1997 10:17 am | |
| Ian Kallen | Jul 30, 1997 10:37 am | |
| Patrick Gilbert | Jul 30, 1997 11:43 am | |
| Jay D. Nelson | Jul 30, 1997 1:52 pm | |
| [Mario1-] | Jul 30, 1997 2:06 pm | |
| Jordan K. Hubbard | Jul 30, 1997 3:53 pm | |
| Jordan K. Hubbard | Jul 30, 1997 4:04 pm | |
| yossman | Jul 30, 1997 4:20 pm | |
| 12 later messages | ||
| Subject: | Re: Detecting sniffers (was: Re: security hole in FreeBSD) | |
|---|---|---|
| From: | Christopher Petrilli (petr...@amber.org) | |
| Date: | Jul 29, 1997 9:52:17 am | |
| List: | org.freebsd.freebsd-security | |
On Tue, 29 Jul 1997, Warner Losh wrote:
In message <Pine...@cyrus.watson.org> Robert
Watson writes:
: host. Promiscuous mode simply disables the filter. The only way to
: prevent the packets from being sniffable is to prevent them from going on
: the wire in question -- smart hubs (switches) do this, so are desirable.
Well, there is strong encryption. While it doesn't prevent sniff of the packets, per se, it generally leaves you with garbage and produces the same net effect.
I will note that there are a few people (ODS and Bay Networks included) who make what is called "secure Ethernet", which basically learns what MAC address is on each port, and scrambles frames that are not destined for that MAC. What usually happens is it replkaces the data paylode with alternating 0/1, and fixes the checksum. It works just fine :-) It's also generally cheaper than a switch.
Christopher