How to disable IPv6 in Ubuntu / CentOS
For Ubuntu 14.04 12.04 CentOS 5.x 6.x 7.x echo “net.ipv6.conf.all.disable_ipv6 = 1” >>/etc/sysctl.conf echo “net.ipv6.conf.default.disable_ipv6 = 1” >>/etc/sysctl.conf sudo sysctl -p cat /proc/sys/net/ipv6/conf/all/disable_ipv6 #
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