Thank you Marek, in Ubuntu 9.04 server edition nf_conntrack module apparently is not loaded by default. I wonder why... What confused me was that iptables rules actually worked, so I thought the module must have been loaded. I loaded it, and the file appeared. > -----Original Message----- > From: Marek Kierdelewicz [mailto:marek@xxxxxxxxx] > Sent: Monday, July 27, 2009 11:53 PM > To: Alec Matusis > Cc: netfilter@xxxxxxxxxxxxxxx > Subject: Re: now to increase ip_conntrack_max in 2.6.28? > > Hi Alec, > > >On 2.6.28 (ubuntu 9.04) the entire /proc/sys/net/ipv4/netfilter > >directory is missing. Moreover, > > Make sure you have nf_conntrack loaded. It you do, then file you're > looking for is here: > /proc/sys/net/nf_conntrack_max > > Cheers, > Marek Kierdelewicz -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html