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Re: [lvs-users] LVS-Nat - access to external ip from internalmachines

To: "'LinuxVirtualServer.org users mailing list.'" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] LVS-Nat - access to external ip from internalmachines
From: "XUFENG" <xufengnju@xxxxxxxx>
Date: Mon, 23 Feb 2009 17:56:53 +0800
Hi

What I mean is that you can add one line in your /etc/hosts

#On real server5 www.example.com is your website domain name.
10.1.0.5 www.example.com acs5 ACS5
So your requests on real server5 (10.1.0.5)for http://www.example.com (Your
Web Site) will be processed locally, with no LVS involved.

Best wishes.

Yours
XUFENG
From China.


> -----Original Message-----
> From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of George
> Machitidze
> Sent: 2009年2月23日 17:37
> To: XUFENG
> Cc: LinuxVirtualServer.org users mailing list.
> Subject: Re: [lvs-users] LVS-Nat - access to external ip from
internalmachines
> 
> Hello Xufeng,
> 
> Hmm, strange... It doesn't look like a problem with domain resolve,
anyway,
> I will check link that Graeme gave to be sure that everything that must
> satisfy this issue is done...
> 
> 127.0.0.1 localhost.localdomain localhost
> 
> 10.1.0.1 acs1 ACS1 lba1a LBA1A
> 10.1.0.2 acs2 ACS2 lba1b LBA1B
> 10.1.0.3 acs3 ACS3
> 10.1.0.4 acs4 ACS4
> 10.1.0.5 acs5 ACS5
> 10.1.0.51 vip1 VIP1
> 
> 
> 
> 2009/2/23 XUFENG <xufengnju@xxxxxxxx>
> 
> > 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@xxxxxxxxxxxxxxxxxxxxxx
> > > [mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx] 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
> > >
> > >
> > > _______________________________________________
> > > Please read the documentation before posting - it's available at:
> > > http://www.linuxvirtualserver.org/
> > >
> > > LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> > > Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> > > or go to http://lists.graemef.net/mailman/listinfo/lvs-users
> >
> >
> >
> >
> 
> 
> --
> BR,
> George Machitidze
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
> 
> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users



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