On Wed, 14 Oct 2009, Vincent Young wrote: > Linode is a VPS hosting company using Xen virtual servers, and i'm > being hosted with them at the moment.
there are minor wrinkles running LVS under Xen. Look at the HOWTO. >>> So i decided to use LVS-TUN. > > Linode has the option of deploying your environment in 4 datacenters, > and i figured it would be good to be able to have the flexibility to > connect outside my datacenter when the need should arise. make sure you understand the consequences of a packet with src_addr=VIP from one datacenter emerging from another datacenter. It appears to be a spoofed packet. > I'll give that a try, But the documentation I was reading on my linode > said that my Linode only have one virtual ethernet interface -eth0, so > that is why I needed to assign my private ip as an alias on that > interface. iproute2 handles this. >>> director: cannot ping realserver >> >> you need to fix this. I assume this is your problem. > > ping stops working once I added the tunl0 device to my realserver with > the following command: > /sbin/ifconfig tunl0 97.107.133.234 netmask 255.255.255.255 broadcast > 97.107.133.234 ping to the RIP (has to work) or to the VIP (won't work)? > > > before I added that, I'm able to ping the real server from the > director no problem. Is there something I should be doing to get it to > work? > > >> >>> or telnet port 80 into realserver eth0 public ip. >> >> this test doesn't tell you anything if you can't ping the >> realserver. After you can ping the realserver, you still >> won't be able to connect to the realserver:VIP:80. Do you >> understand why? > > Which is why I used a different client to do my tests. Is the reason > because I'll just be connecting locally, and not actually go through > the VIP? yes >> if so, turn off blocking martians. > > Is this controlled at the router level? on the machine that's seeing the martian. > or on the realserver? Im on a > VPS, and dont have access to the physical machines themselves or the > hardware like routers. a common problem when setting up LVS. If you're doing it all in a single Xen, then you'll be routing within the Xen too. Joe -- Joseph Mack NA3T EME(B,D), FM05lw North Carolina jmack (at) wm7d (dot) net - azimuthal equidistant map generator at http://www.wm7d.net/azproj.shtml Homepage http://www.austintek.com/ It's GNU/Linux! _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
