Broken networking

[animalillo]

For some reason the spoofing section breaks networking on OVH Ubuntu 22.04 LTS. No way to open new ssh connections even with that port allowed, or emptying all rules. There is no way to turn off this setting either.

The default setting on the machine is 2 on the rp_filter of the machine.

This is the related section

# No spoofing.
if [ -e /proc/sys/net/ipv4/conf/all/rp_filter ]
then
for filter in /proc/sys/net/ipv4/conf/*/rp_filter
do
echo 1 > $filter
done
fi

[steveWinter]

My recent experience would also suggest this is an issue with Digital Ocean Ubuntu 22.04 LTS instances. This seems to impact protocols other than ssh as well.

[github-actions]

This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark issues as stale.