[Bug 1130] Better handling of DNS names in nft ruleset

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1130

--- Comment #2 from Pablo Neira Ayuso <pablo at netfilter.org> ---
(In reply to Pablo Neira Ayuso from comment #1)
> If you're seeking to improve human readability, then I'd suggest you use
> variable definitions, eg.
> 
> define yahoo = { 98.139.183.24, 98.138.253.109, 206.190.36.45 }

You can keep autogenerate these via script, keep it in a separated file and
include this file, eg.

$ cat namebase.nft
define yahoo = { 98.139.183.24, 98.138.253.109, 206.190.36.45 }
...
$ cat ruleset.nft
include "namebase.nft"

add table x
add chain x y { type filter hook output priority 0; }
add rule x y ip daddr $yahoo drop

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