[00:51] <Kilroy> is there a good way to just remove ip6tables, and not have everything need it
[00:52] <Kilroy> I use ipv4 not ipv6
[02:44] <tomreyn> Kilroy: just don't use it then. it's tiny, should not matter
[02:44] <Kilroy> yea but it breaks other stuff
[02:45] <tomreyn> how?
[02:45] <Kilroy> docker
[02:45] <Kilroy> Error creating default "bridge" network: Failed to program NAT chain: COMMAND_FAILED: '/usr/sbin/ip6tables-restore -w -n' failed: ip6tables-restore v1.8.4 (legacy): goto 'PRE_docker' is not a chain
[02:46] <tomreyn> oh, you're saying that your docker configuration is broken
[02:46] <Kilroy> I just ran one command and I think I broke it more
[02:47] <Kilroy> trying to fix it
[02:47] <tomreyn> my understanding is that ip6tables-restore would only attempt to restore what was previously there. if you'll delete the state file, i think this should solve it.
[02:48] <tomreyn> but then, if you can have ipv6 connectivity, then you really should nowadays
[02:50] <genii> I'm fairly certain that ipv6  can be turned off entirely within sysctl.conf  with the net.ipv6.conf.all.disable_ipv6 setting
[14:00] <heller> hey guys
[14:00] <heller> can you assist me with ubuntu 20 LTS and network configs
[14:00] <heller> i've got some issues with DNS
[14:02] <Kilroy> what is your issue?
[14:03] <heller> i'm not sure whats messing up my DNS
[14:03] <heller> and since i'm new to netplan, im not sure if thats configured properly
[14:04] <heller> i also tried to disable ipv6, but it seems to still have some ipv6 lines on eth0
[14:12] <heller> i've got two servers for example, other one is working correctly. How can i check what manages it's configuration?
[14:38] <heller> hm. seems like ping does work if i apply -4 option
[14:39] <heller> some tutorials say to change /etc/default/grub but i dont have that file
[16:56] <mason> heller: I just read over https://itsfoss.com/disable-ipv6-ubuntu-linux/ and it doesn't seem too far off-base.
[16:57] <mason> I made the mistake of visiting it without NoScript or AdBlock, but so it goes sometimes.
[18:37] <mason> General note, https://ubuntu.com/security/cve-2021-43527
[18:38] <mdeslaur> mason: https://ubuntu.com/security/notices/USN-5168-1
[18:39] <mason> Ah, better link. Thank you.
[20:25] <heller> mason: i did try that with no luck
[20:25] <mason> heller: The packages showed up in updates here.
[20:30] <heller> i did the first part except the rc.local thing
[20:30] <heller> and i dont see file /etc/default/grub
[22:01] <mason> heller: Oh, sorry, I didn't realize you were talking about the IPv6 bits.