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Whether you're an administrator involved with DNS on a daily basis or a user who wants to be more informed about the Internet and how it works, you'll find that this book is essential reading.
What DNS does, how it works, and when you need to use it
How to find your own place in the Internet's namespace
Setting up name servers
Using MX records to route mail
Configuring hosts to use DNS name servers
Subdividing domains (parenting)
Securing your name server: restricting who can query your server, preventing unauthorized zone transfers, avoiding bogus servers, etc.
The DNS Security Extensions (DNSSEC) and Transaction Signatures (TSIG)
Mapping one name to several servers for load sharing
Dynamic updates, asynchronous notification of change to a zone, and incremental zone transfers
Troubleshooting: using nslookup and dig, reading debugging output, common problems
DNS programming using the resolver library and Perl's Net::DNS module
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Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!