From the command-line, I use "sudo sysctl net.ipv6.conf.all.disable_ipv6=1". Add "net.ipv6.conf.all.disable_ipv6=1" to /etc/sysctl.conf to make it permanent.
From the command-line, I use "sudo sysctl net.ipv6. conf.all. disable_ ipv6=1" . Add "net.ipv6. conf.all. disable_ ipv6=1" to /etc/sysctl.conf to make it permanent.