[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Disabling IPv6 by default when creating a new namespace in Linux

Dheeraj,

You don't need to touch the /etc/sysctl.conf. You need to touch your bootloader configuration file. You can see an example of how to do it here: https://www.thegeekdiary.com/centos-rhel-7-how-to-disable-ipv6/

On 07/06/2022 15:33, Dheeraj Kandula <dkandula@gmail.com> wrote:

Thanks Bjørn for your response. I think I am getting a bit confused here.

I booted up my Linux VM and set the following in my /etc/sysctl.conf file:

net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default.disable_ipv6=1

I saved the file.

*I rebooted my VM.*
After reboot, I check the value of "/sys/module/ipv6/parameters/disable_ipv6". *It is still 0.*
As it is still 0, the new namespaces are created with IPv6 enabled. Is this a bug in the kernel code? 

Dheeraj
On Tue, Jun 7, 2022 at 2:17 PM Bjørn Mork <bjorn@mork.no <mailto:bjorn@mork.no>> wrote: 

    Dheeraj Kandula <dkandula@gmail.com <mailto:dkandula@gmail.com>> writes:

     > On my system I see the following values:
     >
     > $cat /sys/module/ipv6/parameters/disable_ipv6
     > 0

    Yes, that's the default unless you change it..

     > Are you suggesting that "cat
    /sys/module/ipv6/parameters/disable_ipv6"
     > should be 1?

    Yes, And if you boot with "ipv6.disable_ipv6=1" on the command line,
    then it will be.


    Bjørn
Reply to: