On Feb 16, 2010, at 10:39 AM, Massimo Nuvoli wrote:
donovan jeffrey j ha scritto:
On Feb 16, 2010, at 8:09 AM, aa wrote:
Someone advised me to insert in the DNS zone a list of MX records
defined with the same level of priority so the DNS server will
choose
one of them without invoking always the same mail server....
It could be an idea, in my opinion, but I'd prefer a "less random"
solution and a more scientific one....
very easy for smtp relays.
smtp1
smtp2
create a dns name smtp, and your system will round robin query for
the
next available server.
DNS round robin is bad, it works but is defective for real load
balancing. The client choose the IP to use, this is "random", and
after can use the same ip for a while... this is not random.
The real solution is lvs or keepalived, the choice of the node is done
by the load balancer...
Bye.
<massimo.vcf>
I wouldn't say it's bad, it's just cheap. Of course a load balancing
switch can be purchased $
-j
