Date: Sun, 09 Mar 2008 11:20:16 +0200 From: Manolis Kiagias <sonicy@otenet.gr> To: roy lee <dotyao@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Large numbers of Limiting open port RST response from 6 to 5 packets/sec Message-ID: <47D3ABD0.5090108@otenet.gr> In-Reply-To: <47D40943.5080802@gmail.com> References: <47D40943.5080802@gmail.com>
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roy lee wrote: > this is a web server,use nginx, Large numbers of Limiting > open port RST response from 6 to 5 packets/sec. > > I need help. > > dmesg: > Limiting open port RST response from 11 to 5 packets/sec > Limiting open port RST response from 6 to 5 packets/sec > Limiting open port RST response from 8 to 5 packets/sec > Limiting open port RST response from 6 to 5 packets/sec > Limiting open port RST response from 8 to 5 packets/sec > Limiting open port RST response from 7 to 5 packets/sec > Limiting open port RST response from 7 to 5 packets/sec > Limiting open port RST response from 14 to 5 packets/sec > Limiting open port RST response from 11 to 5 packets/sec > Limiting open port RST response from 9 to 5 packets/sec > Limiting open port RST response from 12 to 5 packets/sec > Limiting open port RST response from 6 to 5 packets/sec > ....... > > uname -a > FreeBSD qz14253.tmdxy.org 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sat Mar > 8 20:41:05 UTC 2008 roy@qz14253.tmdxy.org:/usr/obj/usr/src/sys/ > qz2kernel i386 > > <SNIP> > > sysctl.conf: > net.inet.icmp.drop_redirect=1 > net.inet.icmp.log_redirect=1 > net.inet.tcp.msl=2500 > net.inet.icmp.icmplim=5 > kern.ipc.somaxconn=32768 > kern.ipc.shmall=32768 > kern.ipc.shmmax=134217728 > kern.ipc.semmap=256 > > <SNIP> ICMP packets are rate-limited by the kernel, but you limited them even more with this: net.inet.icmp.icmplim=5 This is the cause of your messages. Adjust it to about 500.
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