DNS report for zone “cadi.fi”
Hostmaster for zone cadi.fi is: admin@suomicommunications.comIP settings (as seen from dn2.suomicommunications.com)
info
You have 2 nameservers.
info
You have nameservers in several C-Nets, that's good!
Mail settings (as seen from dn2.suomicommunications.com)
warn
You have only 1 mailserver. Consider getting a backup one!
Zone as seen from “dn1.suomicommunications.com” [217.119.36.4]
info
dn1.suomicommunications.com is running the latest version of the zone(2009130202).
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 60 minutes is good.
info
Your SOA retry value of 60 minutes is good.
warn
A SOA expiry value of 432000 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.
warn
A minimum TTL (Time To Live) of 38400 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.
Zone as seen from “dn2.suomicommunications.com” [217.119.37.4]
info
dn2.suomicommunications.com is running the latest version of the zone(2009130202).
warn
We recommend that you keep your SOA in YYYYMMDDxx-format.
info
This nameserver does not allow zone transfers.
info
This nameserver does not support recursion, which is good. Public nameservers should never support recursion.
info
Your nameserver responds to queries via TCP.
info
Your nameserver responds authorative for the zone.
info
Your SOA refresh value of 60 minutes is good.
info
Your SOA retry value of 60 minutes is good.
warn
A SOA expiry value of 432000 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.
warn
A minimum TTL (Time To Live) of 38400 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.