One of the simplest ways to defend is limit zone transfers between nameservers by defining ACL. I see many admin allows BIND to transfer zones in bulk outside their network or organization. There is no need to do this. Remember you don. The link for this article located at Nixcraft is no longer available. . Learn effective methods to restrict BIND zone transfers by IP for enhanced security and network integrity.. BIND Dns Server, Zone Transfer Security, Ip Address Restrictions. . Brittany Day
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