Re: TW_REC: reject openreq

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On Tue, Jul 11, 2000 at 05:44:10PM +0200, Andrius Adomaitis wrote:
> Hello,
> 
> recently I have installed linux 2.4.0-test2-ac2 kernel on high load web
> server. Everything is ok, exept _very_ slow (if any) connect from my
> office masq/firewall box to that server. Kernel logs shows following debug
> printk's:
> 
> kernel: TW_REC: reject openreq 181191355/1822953 193.219.xxx.xxx/62226
> Problem comes from ~linux/net/ipv4/tcp_ipv4.c line 1387 in function
> tcp_v4_conn_request(...). I reviewed this list old archives, but found
> only questions to this problem, so what are the answers? How to fix that?

echo 0 > /proc/sys/net/ipv4/tcp_tw_recycle 

The problem is that masquerading effectively causes multiple timestamp 
clocks on a single host (its own + the one of all the boxes behind it),
and the tw_recycle code cannot deal with that.


-Andi
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