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I'm in a situation where I'm trying to help out a friend who has little knowledge of his system. He is trying to install a program onto his domain controller and it gives an error stating that it cannot be installed on a RODC. This is the only DC that he has so I am assuming it is not a RODC. Is there a specific way I can have him determine what kind of server this was loaded as? I had him send me a dcdiag /v printout, but I couldn't determine one way or another if it was read only or not.

Ben Pilbrow
  • 12,031

2 Answers2

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In 'Active Directory Users And Computers' browse to the RODC's computer object the DC Type should contain say ReadOnly if it is a RODC. The computer object properties on tab 'Managed by' should also show what type of DC it is.

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You can get the DC detail with the help of PS. Go to your DC and type

nltest /DSGETDC:

i.e. PS C:\Users\44012231-730> nltest /DSGETDC:ABC.COM DC: \SKYBLUE.ABC.COM Address: \123.11.1.45 Dom Guid: 44c23f06-dff1-47c9-92e2-dd060e2c2b11 Dom Name: ABC.COM Forest Name: ABC Dc Site Name: 0SHSRNKDKJ Our Site Name: GSKDJFOENL Flags: GC DS LDAP KDC TIMESERV WRITABLE DNS_DC DNS_DOMAIN DNS_FOREST CLOSE_SITE FULL_SECRET WS 0xC000 The command completed successfully