Container doesn't have internet access anymore

1

Hello,
Since today, my container cannot acces to internet. I didn’t make any changes. I try to ping 8.8.8.8 or curl https://www.google.fr. The internet conenction are good on the host. The container hosts a web server which is accessible from internet but the container cannot go outside.
thank you.

2

Do they show an address in lxc list?
Do you perhaps have Docker installed on the host (it’s been known to mess with firewalling)?

3

Docker is not installed.

lxc list
±-------------------±--------±-------------------±----------------------------------------------±----------±----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
±-------------------±--------±-------------------±----------------------------------------------±----------±----------+
| NginxContainer | RUNNING | 10.49.6.32 (eth0) | fd42:c9c4:286a:59ae:216:3eff:fea8:7b80 (eth0) | CONTAINER | 4 |
±-------------------±--------±-------------------±----------------------------------------------±----------±----------+
| WordpressContainer | RUNNING | 10.49.6.169 (eth0) | fd42:c9c4:286a:59ae:216:3eff:fe39:55b8 (eth0) | CONTAINER | 10 |
±-------------------±--------±-------------------±----------------------------------------------±----------±----------+

4

Ok, can those containers ping 10.49.6.1?

5

Ok I rebooted host and it’s working again. LXC network or interface don’t seem very stable (on my server at least) ubuntu 20.04 and lxc 4.6. Thanks for your help.