From: pauloric@contatogs.com.br
To: netfilter <netfilter@vger.kernel.org>
Subject: Re: Automatically maintaining unique list of addresses
Date: Wed, 19 Feb 2020 08:01:33 -0300 (BRT) [thread overview]
Message-ID: <1503010567.303.1582110093370.JavaMail.zimbra@contatogs.com.br> (raw)
In-Reply-To: <ab8bf7b2-d135-2e4b-b9a9-7c917f113ddf@gmx.com>
Hi
You can use named sets ( https://wiki.nftables.org/wiki-nftables/index.php/Sets)
or
a dictionary...(https://wiki.nftables.org/wiki-nftables/index.php/Dictionaries)
I think the best would be dictionaries...80)
best regards
----- Mensagem original -----
De: "Lars Noodén" <lars.nooden@gmx.com>
Para: "netfilter" <netfilter@vger.kernel.org>
Enviadas: Quarta-feira, 19 de fevereiro de 2020 4:44:51
Assunto: Automatically maintaining unique list of addresses
If I add an IP address multiple times, I end up with it in the ruleset
three times. Is there an easy way to try to add IP addresses such that
they aren't duplicated?
/Lars
$ sudo nft add rule ip filter4 input ip \
saddr 198.51.100.209 counter reject
$ sudo nft add rule ip filter4 input ip \
saddr 198.51.100.209 counter reject
$ sudo nft add rule ip filter4 input ip \
saddr 198.51.100.209 counter reject
$ sudo nft list ruleset| grep 51
ip saddr 198.51.100.209 counter packets 0 bytes 0 reject
ip saddr 198.51.100.209 counter packets 0 bytes 0 reject
ip saddr 198.51.100.209 counter packets 0 bytes 0 reject
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next prev parent reply other threads:[~2020-02-19 11:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 7:44 Automatically maintaining unique list of addresses Lars Noodén
2020-02-19 11:01 ` pauloric [this message]
2020-02-19 11:39 ` Lars Noodén
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