On Sat, Mar 22, 2008 at 11:22 PM, Andrey Falko <[EMAIL PROTECTED]> wrote: > > On Sat, Mar 22, 2008 at 11:16 PM, Dan Cowsill <[EMAIL PROTECTED]> wrote: > > Hi folks, > > > > Today I had some really serious problems with my Gentoo router. I > > could ping it, and all the network connections were in place and > > functional, but no outside access. I looked into it and found that > > the syslog was flooded with this: > > > > > > Mar 22 21:25:55 localhost kernel: nf_conntrack: table full, dropping > packet. > > Mar 22 21:26:00 localhost kernel: printk: 11 messages suppressed. > > Mar 22 21:26:00 localhost kernel: nf_conntrack: table full, dropping > packet. > > Mar 22 21:26:05 localhost kernel: printk: 16 messages suppressed. > > > > > > These messages spanned a full 20 hours of the log. I understand that > > conntrack is the connection tracking system that iptables uses. I > > also understand that its maximum is something on the order of 65000 > > simultaneous connections. For a simple home network, I think we can > > agree that I would probably never approach this number of connections > > with normal use. > > > > So my question is this: what could have caused the router's > > connection tracker to overflow? > > -- > > Dan Cowsill > > http://www.danthehat.net > > -- > > gentoo-user@lists.gentoo.org mailing list > > > > > > What type of 'net services do you run between your home network and > the outside? Is there a possibility that someone out have put a denial > of service attack on you? > -- > gentoo-user@lists.gentoo.org mailing list > >
I have SSH to a server, two open ports for bit torrent connections and a few ranges for DCC transfers from irc. The possibility of a DoS attack is pretty real, I imagine. Is there any way I could be sure? -- Dan Cowsill http://www.danthehat.net -- gentoo-user@lists.gentoo.org mailing list
