ubuntu disable ipv6

if you want to disable ipv6 for some reasons, there are several ways to do.

do it temporarily (effects immediately)

     echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6

and do it permanently (requires reboot)

  #create any file in /etc/sysctl.d/ e.g. 01-disable-ipv6.conf
  # and write "net.ipv6.conf.all.disable_ipv6 = 1" into it
  # the 01- at the filebeginning is recommended, to mae it happens asap after system boot

  # e.g.
  echo "net.ipv6.conf.all.disable_ipv6 = 1" > /etc/sysctl.d/01-disable-ipv6.conf

  # reboot...
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    if you want to disable ipv6 for some reasons, there are several ways to do. do it temporarily (effects immediately) echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6 and do it permanently (requires reboot) #create any file in /etc/sysctl.d/ e.g. 01-disable-ipv6.conf # and write "net.ipv6.conf.all.disable_ipv6 = 1" Read More
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