syncookies: remove Kconfig text line about disabled-by-default
syncookies default to on since
e994b7c901ded7200b525a707c6da71f2cf6d4bb
(tcp: Don't make syn cookies initial setting depend on CONFIG_SYSCTL).
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 8e3a1fd..7c3a7d1 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -303,7 +303,7 @@
If unsure, say N.
config SYN_COOKIES
- bool "IP: TCP syncookie support (disabled per default)"
+ bool "IP: TCP syncookie support"
---help---
Normal TCP/IP networking is open to an attack known as "SYN
flooding". This denial-of-service attack prevents legitimate remote
@@ -328,13 +328,13 @@
server is really overloaded. If this happens frequently better turn
them off.
- If you say Y here, note that SYN cookies aren't enabled by default;
- you can enable them by saying Y to "/proc file system support" and
+ If you say Y here, you can disable SYN cookies at run time by
+ saying Y to "/proc file system support" and
"Sysctl support" below and executing the command
- echo 1 >/proc/sys/net/ipv4/tcp_syncookies
+ echo 0 > /proc/sys/net/ipv4/tcp_syncookies
- at boot time after the /proc file system has been mounted.
+ after the /proc file system has been mounted.
If unsure, say N.