From: Valentijn Sessink <valentyn@blub.net>
To: netfilter@vger.kernel.org
Subject: short circuit evaluations?
Date: Mon, 21 Feb 2011 00:04:13 +0100 [thread overview]
Message-ID: <4D619DED.6090405@blub.net> (raw)
Hello list,
Does iptables do short circuit evaluation?
Let me try to explain. I now have:
iptables -A chain -m recent --name evil \
--seconds 900 --hitcount 15 -j block
iptables -A block -m recent --name block --set
If iptables does short circuit evaluation and it does this reliably
(i.e. by design/documented/will not change without warning), then I can
replace this with:
iptables -A chain -m recent --name evil \
--seconds 900 --hitcount 15 \
-m recent --name block --set
(Which is much harder to read, so much safer. HHOK ;)
Best regards,
Valentijn
next reply other threads:[~2011-02-20 23:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-20 23:04 Valentijn Sessink [this message]
2011-02-20 23:28 ` short circuit evaluations? Jan Engelhardt
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