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Re: understanding lvs

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: understanding lvs
From: Adrian Chapela <achapela.rexistros@xxxxxxxxx>
Date: Tue, 20 Mar 2007 19:25:30 +0100
Joseph Mack NA3T escribió:
On Tue, 20 Mar 2007, webbezcom wrote:
< silence>


Everything can be balanced between real servers not just httpd?

the services that we know to work are in the HOWTO. In principle any single port service can be balanced by LVS.
I'am balancing DNS, smtp, pop3, http and a propietary UDP service.

Are the linux directors actually physically servers?

they are not servers. They are routers with a slightly unusual set of rules. Clients do not connect to services on the director.

If so what server
requirements would I need for the directors?

read the performance section.

I'am using one master and one backup. The servers are PIV 2,8 Ghz 512 MB memory. With this I'am balancing 3 UDP servers, 2 HTTP servers, 2 POP3, 2 smtp and 2 DNS servers.

The connections are moderate in TCP. In UDP I have about 2500 connections per second.
What about securities, if one server gets hacked will the hacker have access
to all servers?

quite likely. Read the security section.

Can ultramonkey accommodate third layer topology? Having a central storage
server?

Yes

Ultramonkey is a wrapper around LVS.

Joe
I use Keepalived for this....



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