April 2003
Intermediate to advanced
256 pages
5h 46m
German
Content preview from DNS & BIND Kochbuch
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5.4 Den Cache eines Nameservers leeren
Problem
Sie möchten ungültige Records aus dem Cache eines Nameservers entfernen.
Lösung
Wenn Sie einen Nameserver mit der BIND-Version 9.2.0 oder einer neueren Version betreiben, können Sie den Cache mit rndc flush leeren. Ältere Nameserver müssen Sie beenden und neu starten, um den Cache zu leeren. Sie können dies in einem Durchgang mit Hilfe von rndc restart oder rndc exec erledigen.
Erläuterung
Das Löschen des Caches ist im Grunde ein Nebeneffekt der Beendigung des Nameservers, da BIND-Nameserver nur Cache-Daten im Speicher halten. Da der Neustart des Nameservers einige Zeit dauert – besonders, wenn er für mehrere Zonen autorisiert ist – stellt rndc flush eine bessere Wahl dar.
Wenn Sie Ihren BIND 9.2.0-Nameserver ...
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