DNS
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Hallo,
Es gibt DNS (Port 53) für TCP und für UDP. Was ist der Unterschied?
Gruss
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Grundsätzlich werden Anfragen per UDP verschickt. Ist das Antwortpaket jedoch größer als 512 Byte, wird TCP benutzt. Naja, lies selbst
Make sure your parent domain has the same NS records for your zone as you do. (Don't forget your in-addr.arpa zones too!). Do not list too many (7 is the recommended maximum), as this just makes things harder to manage and is only really necessary for very popular top- level or root zones. You also run the risk of overflowing the 512- byte limit of a UDP packet in the response to an NS query. If this happens, resolvers will "fall back" to using TCP requests, resulting in increased load on your nameserver.
EDIT: