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Commit a3c910d2 authored by Shan Wei's avatar Shan Wei Committed by David S. Miller
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tcp: doc : fix the syncookies default value 



syncookies is on for default since in commit e994b7c9
(tcp: Don't make syn cookies initial setting depend on CONFIG_SYSCTL).

And fix a typo of CONFIG_SYN_COOKIES.

Signed-off-by: default avatarShan Wei <davidshan@tencent.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4eb313a7

Documentation/networking/ip-sysctl.txt

+2 −2
Original line number Diff line number Diff line
@@ -420,10 +420,10 @@ tcp_synack_retries - INTEGER 
	for a passive TCP connection will happen after 63seconds.



tcp_syncookies - BOOLEAN

	Only valid when the kernel was compiled with CONFIG_SYNCOOKIES

	Only valid when the kernel was compiled with CONFIG_SYN_COOKIES

	Send out syncookies when the syn backlog queue of a socket

	overflows. This is to prevent against the common 'SYN flood attack'

	Default: FALSE

	Default: 1



	Note, that syncookies is fallback facility.

	It MUST NOT be used to help highly loaded servers to stand