touch /etc/sysctl.d/ipv6.conf
nano -w /etc/sysctl.d/ipv6.conf
#disable ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf..disable_ipv6 = 1 net.ipv6.conf. .disable_ipv6 = 1
保存退出。
nano -w /etc/hosts
将
#::1 localhost.localdomain localhost cool
注释掉,这样就关闭了ipv6了。