### How disable IPV6 on Debian ###


```bash
# Edit file /etc/sysctl.conf and add the following 
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
net.ipv6.conf.tun0.disable_ipv6 = 1

# To re-enable remove them