lunes, 4 de octubre de 2010

Microsoft DNS Backup Restore

Copia la DDBB de DNS sin copiar el Estado del sistema.




Articulo extradido de: http://mcpmag.com/articles/2005/07/05/dns-backups-without-the-baggage.aspx


ActiveDirectory? -integrated DNS zones.
For these zones, the support tool dnscmd.exe can get the job done. To back up any DNS zone with dnscmd.exe, you just need to use the /zoneexport switch with the command. To back up the MCPmag.com zone locally on a DNS server, you'd run:
dnscmd /zoneexport mcpmag.com backup\mcpmag.com.dns.bak
This command writes a copy of the mcpmag.com zone to the
%systemroot%\system32\dns\backup\mcpmag.com.dns.bak file.
Note that the command doesn't overwrite existing files, so if you’re including it with a backup script, be sure to move the file to an alternate location after the export completes, or to rename or delete the current backup file before you run a new dnscmd /zoneexport job. If you need to re-create a new zone from the export file, you’ll find that you can do this by using dnscmd.exe with the /zoneadd switch. The only catch with this approach is that if you’re looking to recover an ADintegrated zone, you need to add the zone as a primary first and then convert it to AD-integrated. For example, to recover my mcpmag.com zone, I'd run:
dnscmd /zoneadd mcpmag.com /primary /file mcpmag.com.dns.bak /load
Here, note that the backup file needs to reside in the %systemroot%\system32\dns folder for it to be properly discovered. Use the /load switch to tell the command to load the configuration from the existing file. Without it, the command will create a new zone data file that will overwrite the contents of the backup file. After adding the zone to the DNS server, you can convert it to an AD-integrated zone by running: dnscmd /zoneresettype mcpmag.com /dsprimary At this point, you can then enable secure dynamic updates for the zone by running:
dnscmd /config mcpmag.com /allowupdate 2
This command configures the zone to accept only secure dynamic updates, as specified by the allowupdate value of 2 (use 0 to specify No dynamic updates, 1 for nonsecure and secure dynamic updates).

Articulo extradido de: http://mcpmag.com/articles/2005/07/05/dns-backups-without-the-baggage.aspx

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