[lvs-users] LVS-Nat - access to external ip from internal machines

[XUFENG]

Hi George,

As Graeme pointed out, it is a special case when we use real servers as LVS
clients in LVS-NAT. To satisfy this special need, you may turn to the
/etc/hosts file to resolve domain named locally. 

Yours,
XUFENG
>From China.

> -----Original Message-----
> From: lvs-users-bounces at linuxvirtualserver.org
> [mailto:lvs-users-bounces at linuxvirtualserver.org] On Behalf Of Graeme
Fowler
> Sent: 2009年2月20日 0:04
> To: LinuxVirtualServer.org users mailing list.
> Subject: Re: [lvs-users] LVS-Nat - access to external ip from internal
machines
> 
> Hi George
> 
> On Thu, 2009-02-19 at 19:34 +0400, George Machitidze wrote:
> > I have a problem with accessing IP's of external balancer machines
> > from internal machines:
> <snip>
> > from internal machines i cannot access 100.100.100.3 ip.
> 
> The short answer is that you can't.
> 
> The longer answer is that you can, but it's complex and may not be
> possible in all configurations.
> 
> The simplest way I can think of (which is untested and only applies to
> Linux realservers - internal machines) is to use the iptables REDIRECT
> target on outbound traffic destined for the RIP, like this:
> 
> iptables -t nat -I OUTPUT -d $VIP -j REDIRECT
> 
> You'll have to make sure that your services are configured to handle
> traffic being sent to 127.0.0.1 for this to work.
> 
> Other solutions may be available:
> 
> http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.lvs_clients_on_real
> servers.html#lvs_clients_on_LVS-NAT_realserver_contacting_services_on_VIP
> 
> Graeme
> 
> 
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