Ubuntu/IPv6
< Ubuntu
Disable IPv6
cat >> /etc/sysctl.conf << "EOF" net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 EOF sudo sysctl -p
Boot Setting:
/etc/default/grub GRUB_CMDLINE_LINUX="ipv6.disable=1" sudo update-grub