Hello, 

Mike Cardwell writes: 

> I was looking for a percentage or a ratio, total mail throughput, 
> graphs, comparisons against other filters. Not "5 false positives" which 
> is a meaningless figure.

The comparitives of other similar RBLs covers the of issue mail throughput.  
DynaStop only needs the IP address, not the entire email. 

Resources used by DynaStop in operation: 

For the DynaStop client: 

%Cpu: 0.0
%Memory: 0.0
Memory Footprint 1712K 

Running the DynaStop client 50 times, avg 0.0317 msec (from strace) 

For the DynaStop server:
%Cpu: 0.0
%memory: 0.4
Memory footprint: 9920K 

Only one server is needed to handle several thousand clients.  The DynaStop 
server has been tested to 500 connections/second.

> I was asking for total resource usage of dynastop+spamassassin vs 
> spamassassin+fuzzyocr. Not, total cpu usage of spamassassin scanning 
> lots of messages vs spamassassin scanning less messages.

I will do some research on spamassassin's cpu/memory consumption and post 
the results.

> You forgot to address the question that I marked as the question that 
> needs to be addressed more than anything.

I did answer your question.  DynaStop is not a list of IP addresses, but 
rather a collection of patterns to identify dynamic IP addresses. 

Here an example: A dynamic IP address, say 126.34.45.55, which is listed by 
zen and currently DynaStop. 

If the user of that IP address decides to register a domain and provides the 
reverse DNS of microwidgets.com, DynaStop automatically disregards this IP 
address, zen does not. 

> The PBL is not a list of dynamic IP addresses.

Reread the last sentence, PBL clearly lists dynamic IP addresses

> The pattern list looks vaguely interesting. It would be better provided 
> as an RHSBL though so people just have to add something along the lines 
> of the following config to Exim rather than installing all this cruft:

Not really. In a clustered mail server setting, the $domain variable can be 
passed to DynaStop for domains that want no filtering at all.  Rather then 
adjusting a large number of exim configurations, the administrator need only 
adjust the DynaStop server conf file.  Plus there is no dependancy of a 
network file system, which on a cluster is, in and of itself, a challenge. 

 --- 

DynaStop: Stopping spam one dynamic IP address at a time.
http://tanaya.net/DynaStop/

-- 
## List details at http://lists.exim.org/mailman/listinfo/exim-users 
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://wiki.exim.org/

Reply via email to