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Hi again Joseph!
see this is the thing, it says that you need to create the lo:0, for 2 reasons
#1 so that the real server knows how to get back to the VIP
#2 to solve the arp problem.
for #2, I assume I use the sysctl.conf:
net.ipv4.ip_forward = 1
net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
on the real servers, and just ignore lo:0?
if that's true, ok, but how do I solve #1 (how to show the real
servers where the VIP is?)
thanks!!
Will... btw, I have 2.6.18 kernel... centos 5.1
On Jan 5, 2008 3:36 PM, Joseph Mack NA3T <jmack@xxxxxxxx> wrote:
> On Sat, 5 Jan 2008, William Ottley wrote:
>
> > I'm trying to setup a LVS-TUN, which has 3 internet connections.
> > eth0 - public (client)
> > eth1 - public TUN to webserver 1
> > eth2 - public TUN to webserver 2 and webserver 3 (same network)
> >
> > where would the VIP be?
>
> eth0 if you're using iproute2 tools. ethernet aliases are
> deprecated (but might still work). See the HOWTO.
>
> eth1,2 shouldn't be public, it's a security hole. You may
> not have any choice in whether they're private or public but
> at least you should be aware.
>
> > eth0:1?, also, do we enable ipv4 forward to
> > the webservers or just the LVS?
>
> to eth1,2
>
> > I'm also confused about the lo:0. do we do that on the webservers or
> > just do the:
>
> forget aliases, use just lo (I know the HOWTO is riddled
> with them aliases because of history, but no-one is going to
> rewrite the HOWTO anytime soon)
>
> 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!
>
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--
---------------
Morpheus: After this, there is no turning back. You take the blue pill
- the story ends, you wake up in your bed and believe whatever you
want to believe. You take the red pill - you stay in Wonderland and I
show you how deep the rabbit-hole goes.
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