How do I permanently disable IPv6 in Ubuntu?
- Log in with root privileges.
- Open the /etc/sysctl.conf file with the following command: $ sudo vim /etc/sysctl.conf. Add the following lines to it: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1. Now save the file and reboot your computer with the following command:
How do I disable IPv6 UFW? Enable or disable ipv6 on ubuntu ufw netfilter firewall. The /etc/default/ufw file is a high level configuration file, to change default policies, add IPv6 support and kernel modules. Edit the section in file, change variable IPV6 to no.
Can I disable IPv6? Go to “Settings” > “Connections” > “Mobile networks” > “Access Point Names.” Select your mobile network operator. Scroll down to “APN protocol.” To disable IPv6, select “IPv4” in the menu.
Is it OK to disable IPv6 Linux? No, do not disable IPv6. It breaks things, turns users without v4 away, and makes more work for your future project to use IPv6. A host with only IPv4 addresses and routes will serve web sites just fine without doing anything. v4 and dual stack hosts can still get to it.