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Re: [alpine-user] ip_tables.ko versions on Raspberry

From: Daniel Isaksen <>
Date: Tue, 18 Sep 2018 21:00:13 +0200

Are you using edge?

Kernel modules are built against a specific kernel version, and if you
upgrade either, you need to upgrade the other. I.e. if you upgraded
iptables, you need to upgrade the kernel as well, or install iptables built
against the kernel version you are running.

Also, after upgrading the kernel, you need to reboot the machine.

Sincerely / Med vennlig hilsen,
Daniel Isaksen <> (

On Tue, Sep 18, 2018 at 8:10 PM, Brent B. Powers <>

> I've thrown Alpine onto a raspberry 2 to use as a DNS server, via a
> sys-type installation. I've got my DNS going just fine, but I'm getting
> hammered by ssh attempts. The obvious situation is sshguard, but that
> requires (nowadays) a firewall.
> I've apk'd iptables, but the service won't run, as there's no kernel
> support. And here's the rub: I can't modprobe ip_tables.ko, as modprobe is
> looking for it in 4.14.52-0-rpi2, and I've got it in 4.14.69-0-rpi2. I
> don't know how that happened, but neither insmod or modprobe is letting me
> past it (actually, insmod is giving me an error about Unknown Symbols).
> To compound my difficulties, I'm more of a bsd person than linux, so,
> please, be gentle. cheers, and thanks for the help.

Received on Tue Sep 18 2018 - 21:00:13 UTC