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On Sat, 1 Oct 2005, Dan wrote:
(and Joe rewrote)
Is there a way to connect from one of the real servers
hosting web to the VIP:smtp service? The problem is that
telnet to VIP:smtp from one of the web real servers is
going to try to connect to smtp locally,
I think you want to have an LVS'ed webserver and you want
the webservers then to send mail, via an LVS'ed set of smtp
servers also operating on the came IP (the VIP) on the same
realservers.
Unless you use LVS-NAT, this doesn't work at the moment.
I'm thinking aloud here and haven't done this...:
I assume you want the LVS'ed smtp for loadbalancing and
redundancy (failover). Lets asssume that the traffic is load
balanced by the time it arrives at the webservers, and that
the amount of mail generated by each realserver is about the
same averaged over a long enough time. THen there is no real
problem to have the httpd send the mail to the smtpd on the
same machine. Sure it won't be as well balanced as with an
LVS'ed mailserver, but it might be good enough. As for
failover, if you loose either of the smtpd or the httpd
you'll have to shut that realserver down, rather than just
the httpd or smtpd on that machine. Oh well
Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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