Large numbers of Limiting open port RST response from 6 to 5 packets/sec

roy lee dotyao at gmail.com
Sun Mar 9 09:45:55 UTC 2008


Manolis Kiagias 写道:
>
>
> 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 at 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.
>
>
if sysctl net.inet.icmp.icmplim=500 , the services will stop,
twisted log : writev() failed (32: Broken pipe) while sending request to 
upstream


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