In the last episode (Jan 14), Artem Kuchin said: > I need to block around 150000 ip addreses from acccess the server at > all at any port. The addesses are random, they are not nets. These > are the spammer i want to block for 24 hours. The list is dynamically > generated and regenerated every hour or so. What is the most > efficient way to do it? At first i thought doing ipfw rules using 5 > ips per rule, that would result in 30000 rules! This will be too > slow! I need to something really quick and smart. Like matching the > first number from ip (195 from 22.214.171.124), if it does not match - > skip, if it does - compare the next one and so on.
Take a look at the ipfw manpage, the LOOKUP TABLES section. You can add/remove entries on the fly if you need to, and for an efficient full replacement, create a file with contents like: table 1 flush table 1 add 126.96.36.199 table 1 add 188.8.131.52 etc, then load it with "ipfw -f file.txt". -- Dan Nelson dnel...@allantgroup.com _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"