看了dns那篇文章
對MX的觀念還是不懂
能否為我解惑勒
thanks~
$TTL 86400
$ORIGIN siyongc.domain.
@ IN SOA rh71.siyongc.domain. root.rh71.siyongc.domain. (
2001111601 28800 14400 3600000 86400 )
IN NS rh71.siyongc.domain.
IN NS lp64.dmz.domain.
IN MX 10 rh71.siyongc.domain.
IN MX 20 lp64.dmz.domain.
@ IN A 192.168.100.23
假設一封信寄給 root@h71.siyongc.domain
而 rh71.siyongc.domain 沒回應
此時會先將郵件暫時佇列( queue ) 在 lp64.dmz.domain
沒錯吧
那不就可以設別人的 mail server 嗎?
譬如
IN MX 30 ms1.hinet.net.
IN MX 40 etwebs.com.
如果不行,那要如何防止別人
把mail server當佇列的機器?