April 2003
Intermediate to advanced
256 pages
5h 46m
German
Content preview from DNS & BIND Kochbuch
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5.3 Den Cache eines Nameservers einsehen
Problem
Sie möchten die Daten einsehen, die sich im Cache eines Nameservers befinden.
Lösung
Verwenden Sie rndc dumpdb (BIND 9) beziehungsweise ndc dumpdb (BIND 8), um den Cache auf einen Datenträger zu speichern, und schauen Sie sich anschließend die gespeicherte Datei an.
Erläuterung
BIND 9-Nameserver speichern standardmäßig nur den Cache-Inhalt auf der Festplatte, aber BIND 8-Nameserver speichern sowohl den Inhalt des Caches als auch die autorisierten Zonendaten, sodass Sie die Cache-Records in der Datei finden müssen.
Um zu ermitteln, welche Records in einem BIND 8-Datenbankabbild (Datenbank-Dump, daher der Befehl dumpdb) aus dem Cache stammen, betrachten Sie die TTLs und den Inhalt des comment-Feldes. ...
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