Hi again, I use some keep-state rules in ipfw, but get the following kernel message:
kernel: ipfw: install_state: Too many dynamic rules when presumably my state table reaches its limit (and I effectively get DoS'd). netstat shows tons of connections in FIN_WAIT_2 state, mostly to my webserver. Consequently net.inet.ip.fw.dyn_count is large too. I can increase my net.inet.ip.fw.dyn_max but the new limit will simply be reached later on. I currently get around this with a cronjob that sets net.inet.ip.fw.dyn_keepalive to 0 for just less than 5 minutes every night. If I leave it at 0 for longer or indefinitely then idle ssh sessions and the like are dropped. This works fine for me but it looks like there's some bug with net.inet.ip.fw.dyn_keepalive=1? Or with Apache? I'm using 8.1-STABLE, GENERIC kernel. Experienced the same behaviour on 8.0-RELEASE, but not on 6.1-RELEASE where I had a similar setup. I have a KeepAliveTimeout of 4 in Apache (2.2.16). _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
