IPv6 は危険なので無効化しておきます。 --- a/sysctl.conf Tue Jan 10 09:21:47 2012 +0900 +++ b/sysctl.conf Tue Jan 10 17:45:02 2012 +0900 @@ -58,3 +58,8 @@ # Log Martian Packets #net.ipv4.conf.all.log_martians = 1 # + +# disable IPv6 +net.ipv6.conf.all.disable_ipv6 = 1 +net.ipv6.conf.default.disable_ipv6 = 1 +
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