On Wednesday 26 February 2020 06:40:39 Roger Price wrote:

> On Wed, 26 Feb 2020, Dan Ritter wrote:
> > If you find yourself needing to add lots more rules, you might want
> > to generate a "set" instead of individual rules:
> >
> > http://ipset.netfilter.org/
> > https://www.linuxjournal.com/content/advanced-firewall-configuration
> >s-ipset might be useful.
>
> I find ipsets the natural way of setting up rules.  I run a script
> which blocks whole countries, taking the country data from
> http://ipverse.net/ipblocks/data/countries/
>
> Simple and efficient.  I once had a set with 140000 (yes, 140
> thousand) ipblocks in an ipset with no apparent performance hit.
>
> Roger
Roger, and anyone else following along, I am blocking 12544 with 49 
rules. based on 49 rules, each blocking /24 addresses.  Seems to be 
sufficient.


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>

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