From: Alexey Vlasov <renton@renton.name>
To: netfilter@vger.kernel.org
Subject: limit module
Date: Wed, 30 Jan 2008 19:13:44 +0300 [thread overview]
Message-ID: <20080130161344.GA33214@diabolo.evga.ru> (raw)
Hello!
There's some mess in figures:
# iptables -A INPUT -p tcp -s 111.222.111.222 --syn -m limit --limit 1/s
--limit-burst 50 -j ACCEPT
# iptables -A INPUT -p tcp -s 111.222.111.222 --syn -m limit
--limit-burst 1000 -j LOG
Do I understand right that according to the first rule through it can
pass only 50 SYN packets per second. If I am right, then it can be
checked like this: I launch 50 times all at once "telnet dst_host 80" and
look at the counter:
50 2600 ACCEPT
0 0 LOG
Launch 50 times telnet again:
66 3432 ACCEPT
34 1768 LOG
Here goes that 50 packets came, but why only 16 came through the first
rule?
--
BRGDS. Alexey Vlasov.
next reply other threads:[~2008-01-30 16:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 16:13 Alexey Vlasov [this message]
2008-01-30 18:02 ` limit module Grant Taylor
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