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List:       linux-virtual-server
Subject:    Re: [lvs-users] local load balancing (director = realserver)?
From:       Tomasz Chmielewski <mangoo () wpkg ! org>
Date:       2010-05-19 6:11:25
Message-ID: 4BF3810D.5040009 () wpkg ! org
[Download RAW message or body]

Am 19.05.2010 03:03, Simon Horman wrote:

>> Now, I would like to connect from any of the to machines to either
>> realserver_1 or realserver_2 ("round robin"):
>>
>> realserver_1$ telnet address 25
>> 220 realserver_1 ESMTP ...
>>
>> realserver_1$ telnet address 25
>> 220 realserver_2 ESMTP ...
>>
>>
>> realserver_2$ telnet address 25
>> 220 realserver_1 ESMTP ...
>>
>> realserver_2$ telnet address 25
>> 220 realserver_2 ESMTP ...
>>
>>
>> Can I do it with LVS?
>
> Yes, typically this can be done using LVS-DR.
> Be careful about the way you manage the VIP - it will likely
> need to be on lo on the director and ethX on the other machine.
> And also be careful to handle the arp problem.
>
> http://www.ultramonkey.org/3/topologies/sl-ha-lb-eg.html

I tried to set this up with LVS-DR, but then:

$ telnet address 25

always connects to the localhost (i.e., lo:0, as the address is local). 
Which may not be that surprising?

Unless there's something I missed and it should just work?


-- 
Tomasz Chmielewski
http://wpkg.org

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