From: Manuel Scheub <manuel.scheub@kraftcom.de>
To: netfilter@vger.kernel.org
Subject: iptables deactivate "getportbyname"
Date: Tue, 15 Jan 2013 13:14:52 +0100 [thread overview]
Message-ID: <50F5483C.9050807@kraftcom.de> (raw)
Hello,
after an upgrade of iptables from version 1.4.3.2 to 1.4.16.3, some
rules doesn't work anymore.
e.g. all rules with protocol UDP an port information:
#iptables -A INPUT -p udp -i eth0 --dport 67 --sport 68 -j ACCEPT
#iptables v1.4.16.3: Port "67" does not resolve to anything.
If I replace the port with the resolving name defined in /etc/services,
all rules will be accepted:
#iptables -A INPUT -p udp -i eth0 --dport bootps --sport bootpc -j ACCEPT
I saw a "getportbyname" in the source code - is it possible to
deactivate this "feature"?
I would like to still use numbers instead of names, because if there are
some special portforwarding rules in my network, it is not guaranteed
that there is an entry in /etc/services for that port.
Any help would be greatly appreciated!
Greetz
Manu
next reply other threads:[~2013-01-15 12:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 12:14 Manuel Scheub [this message]
2013-01-15 12:51 ` iptables deactivate "getportbyname" Jan Engelhardt
2013-01-15 14:26 ` Manuel Scheub
2013-01-15 14:35 ` Jan Engelhardt
2013-01-15 15:57 ` Manuel Scheub
2013-01-15 18:22 ` Jan Engelhardt
2013-01-16 10:52 ` Manuel Scheub
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