Nmap Announce mailing list archives
Re: article 2
From: Raul Miller <moth () magenta com>
Date: Sat, 3 Jun 2000 15:58:19 -0400
On Fri, Jun 02, 2000 at 07:41:53PM -0400, Bill Royds wrote:
""without Right" is legal jargon to mean without a pre-existing arrangement, either ownership, licenses, or invitation (including advertising). Now the problem is to decide whether a right had been granted. But a denial (standard disclaimer on MOTD or logon) removes right.
In what circumstances? For example, consider a distributed web implementation [where you have identical web servers in a variety of cities, and dns servers in these same cities]. Here, you have a variety of possible responses you can give to any dns query. Ideally, you'd like to respond with the ip address[es] of the web servers which are closest [in the network sense] to the client machines. Of course, the first time you see a query, you're not going to have much information on where the client is, so you'd basically just come back with a set of A records in some random order. But, over time [people usually hit the same web site more than once], you'll have the opportunity to probe the network between the dns servers and the dns client, to determine which path seems best [it's usually safe to assume that the web client is close to the dns client]. So, you wind up with a technology such that asking a DNS server for an A record results in network probes [traceroutes, etc.] directed back at the DNS client. Naturally, the intent in this case isn't to "hack" into the system. [Unless optimizing performance is considered hacking into the system.] However, until this technology is well known and accepted, some people might think that the probes are "without right". -- Raul
Current thread:
- article 2 Robert E. Leever (Jun 02)
- RE: article 2 Bill Royds (Jun 02)
- Re: article 2 Raul Miller (Jun 03)
- RE: article 2 Bill Royds (Jun 02)