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Hi,
Bowie Bailey wrote:
>
> I have a Linux box configured as an LVS-DR director. IP address
> 172.16.17.25
I assume this is the DIP?
> There is one virtual service (www) at 172.16.17.30
Could you show us the ipvsadm -L -n before the request and
after the request, please?
> There are three realservers:
> NT 4.0 with IIS 3.0 at 172.16.17.168
> NT 4.0 with IIS 4.0 at 172.16.17.11
> RedHat Linux 6.2 with Apache at 172.16.17.200
>
> The NT systems are configured with the MS Loopback Adapter as per the
> HOW-TO.
Very good.
> The Linux system is configured with the ipchains redirect like this:
> Chain input (policy ACCEPT):
> target prot opt source destination ports
> REDIRECT tcp ------ 0.0.0.0/0 172.16.17.30 * ->
> * =>*
> REDIRECT udp ------ 0.0.0.0/0 172.16.17.30 * ->
> * =>*
> Chain forward (policy ACCEPT):
> Chain output (policy ACCEPT):
Why those redirections? arp-problem is not an issue if your realservers
are running on NT. The MS-loopback adapter does not reply to arp requests.
> The NT system with IIS 3.0 works perfectly with the LVS. The other two
> mostly work fine as long as you request a good page.
Oh, but this sounds more like a misconfiguration of the other 2. BTW,
what are the "other two"?
> The problem comes when you request a URL that doesn't exist on the server.
> Rather than returning a 404, the browser just sits there until it times out
> and says "cannot find server". If I activate all of these realservers, I
> can cycle through two servers which don't respond and one which gives a 404.
Is the loopback adapter installed on all NT systems? Please show us the
ipvsadm -L -n output before and after the request. What is the DGW for
the realservers?
> These servers all work perfectly if I go to them directly without using the
> LVS. The problem only occurs when I try to access them through the VIP.
Hmm, from were do you try to fetch the page?
> Can anyone give me an idea of why I would get a normal response if the page
> is there, but no response at all if it is not?
Honestly I don't know yet,
Roberto Nibali, ratz
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