*laugh*
Paraphrasing from Mastering Network Security by Chris Brenton page
125, it can be broken into if:
Someone is connected to the CO and switch, and they know your DLCI.
The book goes into it a little more.
THX,
Pete Goodridge
So what you're telling this person is to go buy a book? If this is all we are going to
tell people who traffic this mailing list for help, we undermine the very purpose of
it's existence - INFORMATION. I would suggest that if you do not have anything of
value to post, please refrain..we all have enough SPAM to deal with day-to-day.
Ron: In response to your original question, about 99.98% of internet traffic is at
some point "frame-relay". As a result the majority of "Hacked" or "compromised"
systems are done using a frame relay circuit at some point between the criminal and
the victim. This does not need to be done using a "sniffer". Typically it's done by
port scanning, with a utility that scans an IP address or range of IP addresses for
open or active ports. Once the active ports are noted a hacker will then trying to
brute-force their way into the system by using pregenerated login/password lists and a
program that will keep hammering the system with different combinations of
logins/passwords untill it finds one that works.
Packet sniffing attacks are relatively rare, one must have access to your cable
structure in order to grab your packets. OR as Mr. Brenton points out access to your
telephone company's cable structure.
All these reports of web sites being hacked and "Stolen" are done by poorly written
cgi scripts that allow command line executions (earlier versions of Apache Web Server
were notorious for allowing these cgi scripts by default)
I hope this helps clear things up...
Marc Renner - Director
Network Operations Dept.
City of Marysville, Wa.
++Don't get MAD....Get NDS!++
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