Skip to content

Disable ipv6 on Ubuntu 20.04

homepage-banner

How to disable ipv6 on Ubuntu 20.04?

tune

add the following lines into /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
sudo sysctl -p

check

cat /proc/sys/net/ipv6/conf/all/disable_ipv6

1

you may also find the inet6 in ifconfig is disappeared.

Feedback







Disclaimer
  • Welcome to visit the knowledge base of SRE and DevOps!
  • License under CC BY-NC 4.0
  • Made with Material for MkDocs and improve writing by generative AI tools
  • Copyright issue feedback me#imzye.com, replace # with @