Bonsoir je suis entrain de configurer une f7 en serveur dédié. J'ai un nom de domaine. J'utilise post fix et quand j'envoi des mails je me fais refouler.
Sur dnsstuff.com j'ai tester mon dns et j'ai 2 points ne passe pas mais je ne comprend pas comment les résoudre.
1er point :
Open DNS servers
ERROR: One or more of your nameservers reports that it is an open DNS server. This usually means that anyone in the world can query it for domains it is not authoritative for (it is possible that the DNS server advertises that it does recursive lookups when it does not, but that shouldn't happen). This can cause an excessive load on your DNS server. Also, it is strongly discouraged to have a DNS server be both authoritative for your domain and be recursive (even if it is not open), due to the potential for cache poisoning (with no recursion, there is no cache, and it is impossible to poison it). Also, the bad guys could use your DNS server as part of an attack, by forging their IP address. Problem record(s) are:
Server 62.73.5.198 reports that it will do recursive lookups. [test] See this page for info on closing open DNS servers.
2ème
All nameservers respond
ERROR: Some of your nameservers listed at the parent nameservers did not respond. The ones that did not respond are:
213.186.47.198 Error=Port Unreachable
Note: If you are running a Watchguard Firebox with DNS Proxy enabled, there may be a bug causing port numbers get mixed up -- if this is the case, you can contact Watchguard to see if they have a fix.
Quelqu'un aurrait une idée de ce que ces erreurs veulent dire et comment faire pour les éviter ?
merci bonne soirée !