*** This bug is a duplicate of bug 50093 ***
https://bugs.launchpad.net/bugs/50093
** This bug has been marked a duplicate of bug 50093
Some sysctls are ignored on boot
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** Tags added: cscc
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https://bugs.launchpad.net/bugs/1771222
Title:
Using sysctl to permanently disable IPv6 doesn't have any effect
Status in linux package in Ubuntu:
Workaround is to add:
/etc/init.d/procps restart
in /etc/rc.local
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https://bugs.launchpad.net/bugs/1771222
Title:
Using sysctl to permanently disable IPv6 doesn't
No,
$ apt-get install ifupdown
redo your network config with /etc/network/interfaces
and
$ apt-get autoremove --purge netplan.io
Does not work if you not purge netplan.
If installed, netplan insist to generate volatile config for networkd
(/run/systemd/network/10-netplan-your_interface.network)
Shows up in 16.04.5 (4.15.0-43-generic) too.
In the end, despite all the above ipv6.disable = 1 additions to
sysctl.conf and reboots, the only sure-fire way I found to reliably
disable ipv6 was to add ipv6.disable=1 to grub:
$ grep ip /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1
This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.
Please follow the instructions on
Hi Joseph,
Thank you for the quick reply.
I did as instructed and got the specified upstream kernel installed.
```
~$ uname -a
Linux ubuntu 4.17.0-041700rc5-generic #201805132030 SMP Mon May 14 00:32:50 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux
```
Problem persists after reboot:
```
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.17 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1771222
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