DNS report for zone “incheonjob.net”
Hostmaster for zone incheonjob.net is: root@domainca.comIP settings (as seen from ns2.domainca.com)
info
You have 2 nameservers.
info
You have nameservers in several C-Nets, that's good!
warn
incheonjob.net points to more than one IP address, are you sure this is how you want it? Addresses: 211.106.65.118 , 211.106.65.119 , 211.106.65.117
Mail settings (as seen from ns2.domainca.com)
warn
You don't have any mailservers set up. This is OK if you don't use any mail for the domain.
Zone as seen from “ns.domainca.com” [211.106.65.101]
info
ns.domainca.com is running the latest version of the zone(2009121100).
info
SOA serial seems to follow good standards. We recommend it to be in YYYYMMDDxx-format, which yours appear to be. This would suggest that your zone was last updated at 2009-12-11, and has been updated 1 time on that day.
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.
info
Your SOA refresh value of 30 minutes is good.
info
Your SOA retry value of 30 minutes is good.
info
Your SOA expiry value of 14 days is good.
warn
A minimum TTL (Time To Live) of 86400 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.
Zone as seen from “ns2.domainca.com” [211.106.65.102]
error
ns2.domainca.com is out of sync, it's running a version of the zone with serial 22 when the newest one is 2009121100.
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.
info
Your SOA refresh value of 30 minutes is good.
info
Your SOA retry value of 30 minutes is good.
info
Your SOA expiry value of 14 days is good.
warn
A minimum TTL (Time To Live) of 86400 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.