centos7关闭网卡IPV6

sudo sh -c 'echo 1 > /proc/sys/net/ipv6/conf/<interface-name>/disable_ipv6'
sudo sh -c 'echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6'

重新启用IPV6

sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/<interface-name>/disable_ipv6'
sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6'

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