DNS report for zone “disbyt.se”
Hostmaster for zone disbyt.se is: bok@kleve.seIP settings (as seen from proband.disgen.se)
info
You have 2 nameservers.
info
You have nameservers in several C-Nets, that's good!
Mail settings (as seen from proband.disgen.se)
warn
You have only 1 mailserver. Consider getting a backup one!
Zone as seen from “server.kleve.se” [82.183.136.246]
info
server.kleve.se is running the latest version of the zone(2009111700).
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 2009-11-17, 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.
warn
SOA Refresh value of 57600 is too high. 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 14800 is too infrequent, we propose you set this to a value inbetween 120 and 7200 seconds.
warn
A SOA expiry value of 518400 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 1172800 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.
Zone as seen from “proband.disgen.se” [82.183.136.247]
info
proband.disgen.se is running the latest version of the zone(2009111700).
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 2009-11-17, and has been updated 1 time 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!
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 57600 is too high. 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 14800 is too infrequent, we propose you set this to a value inbetween 120 and 7200 seconds.
warn
A SOA expiry value of 518400 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 1172800 is quite high. RFC2308 recommends a minimum TTL between 1-3 hours.