DNS report for zone “kgbnet.net”
Hostmaster for zone kgbnet.net is: hostmasterIP settings (as seen from ns.yes2404.co.kr)
error
You have less than 2 nameservers. You need to have at least 2 nameservers!
info
You have nameservers in several C-Nets, that's good!
Mail settings (as seen from ns.yes2404.co.kr)
warn
You have only 1 mailserver. Consider getting a backup one!
Zone as seen from “norenew-ns-jcity-net.doregi.com” [210.217.192.1]
error
Host is down!
Zone as seen from “ns.yes2404.co.kr” [210.116.106.140]
info
ns.yes2404.co.kr is running the latest version of the zone(182).
warn
We recommend that you keep your SOA in YYYYMMDDxx-format.
info
This nameserver does not allow zone transfers.
error
Your nameserver supports recursion. This is really bad to have activated on public nameservers since they can then be used for amplification of Denial Of Service attacks! You can find more information about it here: http://www.us-cert.gov/reading_room/DNS-recursion033006.pdf
info
Your nameserver responds to queries via TCP.
info
Your nameserver responds authorative for the zone.
warn
SOA Refresh value of 900 is too low. RFC1912 suggests it should be between 1200 and 43200 seconds. This sets how often slaves should refresh the zone from the master.
info
Your SOA retry value of 10 minutes is good.
warn
A SOA expiry value of 86400 is too low. This value denotes for how long the zone is valid when the master is down. RFC1912 suggests it should be between 2 and 4 weeks.