[CentOS] Optimizing CentOS for gigabit firewall

sadas sadas mailrc at abv.bg
Fri Dec 18 20:16:29 UTC 2009


 
after quick search in google:

http://postfactum.pl.ua/pf/

I will test to patch latest linux kernel with pf.
What do you thing?
 
 >sadas sadas wrote:
 >
 >> I can't find information is there linux or BSD distribution with effective
 >> firewall that uses optimized algorithm to store hundreds of IPs and to
 >> forward huge traffic. Any idea?
 >
 >Hundreds?
 >
 >http://www.openbsd.org/faq/pf/tables.html
 >
 >"A table is used to hold a group of IPv4 and/or IPv6 addresses. Lookups
 >against a table are very fast and consume less memory and processor time
 >than lists. For this reason, a table is ideal for holding a large group of
 >addresses as the lookup time on a table holding 50,000 addresses is only
 >slightly more than for one holding 50 addresses. Tables can be used in the
 >following ways:
 >
 >    * source and/or destination address in filter, NAT, and redirection rules.
 >    * translation address in NAT rules.
 >    * redirection address in redirection rules.
 >    * destination address in route-to, reply-to, and dup-to filter rule
 >options."
 >
 >nuff said ?
 >
 >I love linux, I've been using it for almost 15 years now, I absolutely
 >hate iptables(and ipchains, and ipfwadm). By contrast I absolutely
 >hate everything about OpenBSD except for pf(which I love, ipfw and
 >ipf aren't too bad either, at least for the era), so I use OpenBSD
 >for firewalls, and linux for everything else.
 >
 >nate
 >
 >
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 >
 
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