Hi.

On Fri, Oct 16, 2020 at 12:25:23PM +0200, Jesper Dybdal wrote:
> I have a lot of iptables rules.
> 
> Is it correctly understood that the upgrade to Buster will automatically 
> install iptables-nft, and that iptablés-nft provides complete and compatible 
> support
> for the functionality of the old iptables command, so I can expect my 
> iptables scripts to just work?

Barring some kernel bugs - yes.
For instance, I've seen kernel panics because of simple:

iptables -A INPUT -m conntrack --ctstate INVALID -j DROP

It *should* be fixed by now, but I cannot call my own usage of netfilter
that advanced (filter, nat, *some* raw, that's it).


> (If so, that would be really nice, since I can then postpone the move to 
> native nftables.)

To switch back to conventional netfilter you'll have to execute these:

update-alternatives --config iptables
update-alternatives --config ip6tables
update-alternatives --config arptables
update-alternatives --config ebtables

Last two are optional, and it all should be done after the migration to buster.

Reco

Reply via email to