Florian Weimer écrivait : > Please do not use all-upercase chain names, use the MixedCase convention. > Names such as LogDrop won't conflict with future kernel and/or userspace > extensions. If it's a well admited convention, may be it should be written in the iptables man page, near the -N option description. Thanks for the hint anyway! I will change all my servers to follow it. Regards, J.C.