Hi all,
Please help me out
i have hosted a site www.example.com so the DNS config in zone file will be as:
; zone file for example.com
$TTL 2d ; 172800 secs default TTL for zone
@ IN SOA ns1.example.com. hostmaster.example.com. (
2003080800 ; se = serial number
12h ; ref = refresh
15m ; ret = update retry
3w ; ex = expiry
3h ; min = minimum
)
IN NS ns1.example.com.
joe IN A 192.168.254.3
www IN CNAME joe
Ignore if any mistake in the file. according to above file if we request for
www.example.com it will get the CNAME as joe and will follow the CNAME chain
unless it gets the A record for the site i.e 192.168.254.3.
If am not wrong,We can write the above file as
joe IN A 192.168.254.3
www IN A 192.168.254.3
So what is the actual reason for using CNAME.just saying its used for alias
wont do.when we can write as ablove why to use canonical name,we can straight
away give the IP with A record.
