Re: Can we load balance trafgic for CNAME records?

[Feng He]

于 2012-12-14 13:27, Manish Rane 写道:
Like say i need to play with mail services and I have 2 ISPs.say ISP A
and ISP B.
MX 10 mail.example.com <http://mail.example.com>  20.20.20.20 (from isp A)

Mx 20 mail01.example.com <http://mail01.example.com> 30.30.30.30 (from
isp B)

CNAME cas.example.com <http://cas.example.com>
mail.example.com <http://mail.example.com> 20.20.20.20
mail01.example.com <http://mail01.example.com> 30.30.30.30

A cname host can't be pointed to two hostnames.


Now when users wil confugure their mail boxes they will use
cas.example.com <http://cas.example.com>.

Can I load balance the traffic for cas.example.com <http://cas.example.com>?


If you want the traffic balance, I think the two MXes should take the 
same priority. i.e,

xxx.com.             900     IN      MX      5 mx1.xxx.com.
xxx.com.             900     IN      MX      5 mx2.xxx.com.
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