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s4:provision: Make gc._msdcs DNS entries A/AAAA records

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When adding an additional DC as a GC server, the new DC attempts to register its
own gc._msdcs records.  If the existing gc._msdcs record is a CNAME, BIND fails
the update with the message "attempt to add non-CNAME alongside CNAME ignored",
and the new DC is not registered as a GC server.

The A & AAAA record types for gc._msdcs have been verified against the DNS
server of a W2K8 DC.
This commit is contained in:
Andrew Kroeger
2010-06-13 10:48:31 -05:00
committed by Matthias Dieter Wallnöfer
parent 3f54b41519
commit 352fb5c7e4
2 changed files with 8 additions and 1 deletions
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6
source4/scripting/python/samba/provision.py
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@ -1516,16 +1516,20 @@ def create_zone_file(lp, logger, paths, targetdir, setup_path, dnsdomain,
if hostip6 is not None:
hostip6_base_line = " IN AAAA " + hostip6
hostip6_host_line = hostname + " IN AAAA " + hostip6
gc_msdcs_ip6_line = "gc._msdcs IN AAAA " + hostip6
else:
hostip6_base_line = ""
hostip6_host_line = ""
gc_msdcs_ip6_line = ""
if hostip is not None:
hostip_base_line = " IN A " + hostip
hostip_host_line = hostname + " IN A " + hostip
gc_msdcs_ip_line = "gc._msdcs IN A " + hostip
else:
hostip_base_line = ""
hostip_host_line = ""
gc_msdcs_ip_line = ""
dns_dir = os.path.dirname(paths.dns)
@ -1553,6 +1557,8 @@ def create_zone_file(lp, logger, paths, targetdir, setup_path, dnsdomain,
"NTDSGUID": ntdsguid,
"HOSTIP6_BASE_LINE": hostip6_base_line,
"HOSTIP6_HOST_LINE": hostip6_host_line,
"GC_MSDCS_IP_LINE": gc_msdcs_ip_line,
"GC_MSDCS_IP6_LINE": gc_msdcs_ip6_line,
})
# note that we use no variable substitution on this file