Re: Debian 11: How to disable IPv6
Hello,
On Sat, Jul 09, 2022 at 03:52:03PM +0200, Roger Price wrote:
> I would like to disable IPv6 adapters in order to persuade
> fetchmail to talk to exim4.
Sounds like you have a misconfiguration that should be fixed, rather
than disabling IPv6 to work around it.
> net.ipv6.conf.all.disable_ipv6 = 1
>
> and run sysctl -p as root. With Debian 11 this generates the error message
>
> sysctl: cannot stat /proc/sys/net/ipv6/conf/all/disable_ipv6: No such file or directory
>
> because directory /proc/sys/net/ipv6 doesn't exist. What is the new way of
> disabling IPv6?
That directory exists for me on all of my Debian 11 machines, so I
guess you have something else wrong. Or maybe have already disabled
IPv6 on the kernel command line (don't know if that removes the
net.ipv6 sysfs tree as well).
Cheers,
Andy
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