ubuntu 關閉ipv6

1.編輯 /etc/sysctl.conf加入
#disable ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

2.執行sysctl -p