On 2013-09-18 10:39, Ralf Mardorf wrote:
Hi,
archlinux.org claims "If you never customized /etc/sysctl.conf, you have nothing to do", while archlinux.de's claim is that only those settings
"# Protection from the SYN flood attack. net.ipv4.tcp_syncookies = 1 # Disable packet forwarding. net.ipv4.ip_forward = 0 net.ipv6.conf.all.forwarding = 0"
were used by a /etc/sysctl.conf that never was customized.
I never customized the /etc/sysctl.conf on my machine, but it contains other enabled entries too.
At least on my laptop and desktop, which are both fairly old installations, these are the only ones in there. $ grep -v '^#\|^$' /etc/sysctl.conf net.ipv4.tcp_syncookies = 1 net.ipv4.ip_forward = 0 net.ipv6.conf.all.forwarding = 0 Maybe it was modified without your knowledge?