[Ubuntu]Disabling IPv6 support

Last update on November 10, 2009 08:10 AM by jak58
Published by netty5

[Ubuntu]Disabling IPv6 support





Intro


Before performing any operation,better check out: Disable IPv6 will speed internet connections

To disable IPv6 support in Ubuntu, edit the file /etc/modprobe.d/blacklist: 

gksu gedit /etc/modprobe.d/blacklist


Add at the end of file the line: 

blacklist ipv6


Reboot your system.

To make sure that IPv6 is disabled, type in a terminal: 

ip a | grep inet6
  • If this command returns nothing, it simply means that IPv6 is disabled.

Ubuntu 9.10

  • For Ubuntu 9.10, IPv6 can be disabled by grub: 


gksu gedit /etc/default/grub
  • Change the line: 

GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”
  • to

GRUB_CMDLINE_LINUX_DEFAULT=”ipv6.disable=1 quiet splash”
  • Then update grub: 

sudo update-grub
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