On Thursday 25 Sep 2003 19:35, Pascal wrote:
---RBL operator---
Periodically obtain a list of IP addresses to block. Convert each IP to
a 32bit integer and run it through a one-way hashing function saving the
resulting hashes to a file.
Why is thishashing useful? Running through all 32-bit
The goal of the hashing was to address the problem of keeping the list
of IPs out of the hands of spammers. I have looked into obtaining an IP
listing from existing RBLs and that seems to be their biggest concern.
Some even make you sign paperwork to that effect. I left the phrasing
generic
On Friday 26 Sep 2003 16:02, Pascal wrote:
The goal of the hashing was to address the problem of keeping the list
of IPs out of the hands of spammers.
That would be rather difficult to do, while keeping the operation quick.
Additionally, 1-way hashing is not guaranteed to produce unique
On Friday 26 Sep 2003 16:49, Some Guy wrote:
Still the goal is to try to make something that tells
you if server at IP is an open relay, and does this
more cheaply than you yourself testing to see if it's
an open relay. The freenet lookup should be cheaper
right?
Not really. I'm pretty
On Fri, 2003-09-26 at 12:08, Gordan wrote:
Of course, if the hashing function is complex enough to take 1 second to
calculate on modern hardware, then it will take 136 years of CPU time to work
out every possible combination. However, this could be narrowed down
considerably by only
On Friday 26 September 2003 20:35, Edward J. Huff wrote:
On Fri, 2003-09-26 at 12:08, Gordan wrote:
Of course, if the hashing function is complex enough to take 1 second to
calculate on modern hardware, then it will take 136 years of CPU time to
work out every possible combination. However,
---RBL operator---
Periodically obtain a list of IP addresses to block. Convert each IP to
a 32bit integer and run it through a one-way hashing function saving the
resulting hashes to a file.
Insert a DBR freesite telling people about your RBL and how to use it,
and include your blocklist inside
