From: Anton Gorlov <stalker@altlinux.ru>
To: ALT Linux sysadmins' discussion <sysadmins@lists.altlinux.org>
Subject: Re: [Sysadmins] Борьба с synflood
Date: Wed, 12 Dec 2012 12:39:39 +0400
Message-ID: <50C842CB.6040600@altlinux.ru> (raw)
In-Reply-To: <50C7B49E.9040305@complife.ru>
12.12.2012 02:33, Michael A. Kangin пишет:
> Добрый день.
>
> хочется запинать систему, которая бы выдерживала как можно большее PPS
> синфлуда без вреда для предоставляемых сервисов.
>
> Есть тестовый сервер с двумя ксеончиками, и сетевухой Intel
> Corporation 82580 Gigabit Network Connection (драйвер igb).
попробуй ещё для сетевой карты дёрнуть
ethtool -G eth0 rx 4096 tx 4096
ну и ралди интереса посмотри поведение тазика при
net.ipv4.tcp_tw_recycle = 1
# Disable TCP selective acknowledgements
net.ipv4.tcp_sack=0
net.ipv4.tcp_dsack=0
ещё покрути net.core.somaxconn
next prev parent reply other threads:[~2012-12-12 8:39 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-11 22:33 Michael A. Kangin
2012-12-12 7:20 ` Viacheslav Dubrovskyi
2012-12-12 8:31 ` Anton Gorlov
2012-12-12 9:54 ` Viacheslav Dubrovskyi
2012-12-12 10:12 ` Anton Gorlov
2012-12-13 7:47 ` Sergey
2012-12-12 9:40 ` Michael A. Kangin
2012-12-14 12:17 ` Sergey Alembekov
2012-12-12 8:39 ` Anton Gorlov [this message]
2012-12-12 9:42 ` Michael A. Kangin
2012-12-12 9:58 ` Viacheslav Dubrovskyi
2012-12-12 10:20 ` Alexei Takaseev
2012-12-12 10:34 ` Viacheslav Dubrovskyi
2012-12-12 10:44 ` Michael A. Kangin
2012-12-12 10:40 ` Michael A. Kangin
2012-12-12 10:46 ` Michael A. Kangin
2012-12-12 10:51 ` Viacheslav Dubrovskyi
2012-12-12 11:10 ` Michael A. Kangin
2012-12-20 6:20 ` Dubrovskiy Viacheslav
2012-12-20 18:15 ` Michael A. Kangin
2013-01-06 12:04 ` Dubrovskiy Viacheslav
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