DNS report for zone “phenomina.net

Hostmaster for zone phenomina.net is:   admin@minim.jp

IP settings (as seen from ns02.minim.jp)

info
You have 2 nameservers.
info
You have nameservers in several C-Nets, that's good!

Mail settings (as seen from ns02.minim.jp)

warn
You have only 1 mailserver. Consider getting a backup one!

Zone as seen from “ns01.minim.jp[202.181.108.43]  

info
ns01.minim.jp is running the latest version of the zone(1257370948).
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 1257-03-07, and has been updated 949 times on that day.
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.
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.
warn
A SOA retry value of 14400 is too infrequent, we propose you set this to a value inbetween 120 and 7200 seconds.
warn
A SOA expiry value of 3600000 is quite high. You should consider lowering this to a value inbetween 2 and 4 weeks. This value defines for how long the zone should be valid when the slaves are unable to reach the master.
warn
A minimum TTL (Time To Live) of 900 is too low. RFC2308 recommends a minimum TTL between 1-3 hours.

Zone as seen from “ns02.minim.jp[59.106.157.193]  

info
ns02.minim.jp is running the latest version of the zone(1257370948).
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 1257-03-07, and has been updated 949 times on that day.
warn
This nameserver supports zone transfers. This enables people to fetch a list of all DNS records in your zone. To view the list please click here!
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.
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.
warn
A SOA retry value of 14400 is too infrequent, we propose you set this to a value inbetween 120 and 7200 seconds.
warn
A SOA expiry value of 3600000 is quite high. You should consider lowering this to a value inbetween 2 and 4 weeks. This value defines for how long the zone should be valid when the slaves are unable to reach the master.
warn
A minimum TTL (Time To Live) of 900 is too low. RFC2308 recommends a minimum TTL between 1-3 hours.

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