PLANET CS-2001 - Manual (Page 718)

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Configure DNS settings as listed below: （Table 24-7）
Domain Name Type IP Address Weighting Priority
web.nu.net.tw A 61.11. 11.11 1 1
web.nu.net.tw A 211 .22 .22.22 2 2
www.nu.net.tw CNAME web.nu.net.tw -- --
Table 24-7 CNAME Record of www.nu.net.tw
According to table 24-7, use nslookup command to verify the result of forward DNS
lookup and reverse DNS lookup:
C:\>nslookup
Default Server：dns.hinet.net
Address：168.95.1.1
> server 61.11.11.11 -------------------------------------->switch to your DNS server
Default Server：web.nu.net.tw
Address：61.11.11.11
> www.nu.net.tw ---------------------------------->look up for real domain name
(forward DNS lookup)
Server：web.nu.net.tw
Address：61.11.11.11
Name：web.nu.net.tw ------>the real domain name that www.nu.net.tw corresponds to
Addresses：61.11.11.11, 211.22.22.20---->corresponding IP addresses of
web.nu.net.tw
Aliases：www.nu.net.tw ---------------------------------------> CNAME of web.nu.net.tw
From th e abo ve we can co n clude t hat web.nu.net.tw is the real domain name
mapping to the IP addresses. On the other hand, www.nu.net.tw, a CNAME of
web.nu.net.tw, offers a query function and redirection to web.nu.net.tw.