Hi On Thu, 10 Jul 2008, "Heinz A. Krebs" <[EMAIL PROTECTED]> wrote: > i'm trying to setup a load balancing system with 2 servers and with > qemu-kvm-engines running inside. tried it already some days (various > techniques), but could not succeed, so i'm asking for help, ...
OK... > on Server 1: > ------------------- > eth0 is bidged to br0, eth1 not used by now > br0 192.168.0.110 > br0:1 192.168.5.110 (DIP) > br0:2 192.168.0.40 (VIP) Just to check - Server1 is the director, yes? Is this a VM, or the real hardware? > the server is running qemu-kvm, with a virtual network-card connected to > br0. the networkcard gets the address 192.168.5.115, with default > gateway 192.168.5.110. inside the virtual engine i'm running a > nameserver Again, to be clear - the "realserver" (in LVS terms) is a QEMU VM? > relevant part of my ldirector.cf: > virtual=192.168.0.40:53 > real=192.168.5.115:53 masq > service=dns > scheduler=rr > protocol=tcp > checktype=on > and a similar entrie for ssh You'd be much better off just doing one service at a time. Since SSH responds with a banner (DNS does not) please consider getting your LVS up and running using SSH alone. > from the server i can: > ssh 192.168.5.115 -> connection o.k. > telnet 192.168.5.115 53 -> connection o.k. Which means that the bridge device is working OK, at least locally. > but from outside (CIP 192.168.0.5): > ssh 192.168.0.40 -> no route to host > telnet 192.168.0.40 53 -> connection refused > ping 192.168.0.40: ping is o.k. Is 192.168.0.5 a completely separate physical machine? > tcpdump 'tcp port 53' says: > 12:37:19.757766 IP 192.168.0.5.34186 > 192.168.0.40.domain: S > 3157355270:3157355270(0) win 5840 <mss 1460,sackOK,timestamp 150219440 > 0,nop,wscale 6> > so it seems that the packages reaches the server, but is not forwarded > to the virtual machine .. Which machine - real or VM - was that taken from? Strip it back to SSH only, and try again. This time run a tcpdump on the director and the realserver (the QEMU VM) and see what you get. I'm fairly sure there's something basic going on here. Graeme _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
