Basically, every domain upon creation has a unique SID. Every account and group within that domain has its own unique RID. You get an individual account's SID by combining the domain SID with the account's RID. Therefore, if you create a completely new domain (even with the same name, ip, etc) every account will have a new SID because the domain has a different SID. This causes a problem because many permissions in NT/2000 are associated with the account SID rather than its textual name. The good thing about this is it allows you to change the name of the account without having to go back and redo all the permissions. Having unique SID's is also one of the main reasons to have mutliple DC's. That way, in case one goes down, all the unique information is retained. There's also a MSKB which points out the default accounts: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q163846 -K -----Original Message----- From: Maxime Ducharme [mailto:maxime@pandore-design.com] Sent: Tuesday, May 28, 2002 3:01 PM To: incidentsat_private Subject: Re: strange account in Win2k Hi guys, I saw this thing when our domain controller crashed. The admin replaced with a completly new domain controller which had the same IP, name & config. When workstation started to reconnect to this new domain controller with old settings and SID, we saw this kind of account appear almost on all workstations. We didnt find any way of getting it back, we had to delete and recreate all. If someone happen to be able to explain what exactly happends I'd like to read about it. Tia & bye Max ----- Original Message ----- From: "Admiraal, J.E. (CDIV)" <J.E.Admiraalat_private> To: "'Mark Fagan'" <Mark.Faganat_private>; <incidentsat_private> Sent: Tuesday, May 28, 2002 1:02 PM Subject: RE: strange account in Win2k > These account ID's are usually domain accounts that are not (yet) identified > by the local machine. It could also be an account that no longer is > recognised by the local machine. > > We have the same occurrences here, but waiting for a bit usually clears up > everything to an understandable domain account ("domain\username ") > > > > -----Original Message----- > From: Mark Fagan [mailto:Mark.Faganat_private] > Sent: dinsdag 28 mei 2002 17:30 > To: incidentsat_private > Subject: strange account in Win2k > > > While setting additional privileges on a Win2k webserver I noticed that > certain privileges (logon as batch job, act as part of o/s, logon locally > and network) were applied to a very strange account - > *S-1-5-21-527237240-162531612-725345543-1008 which is not seen as a user > account. Any ideas folks ? > > Mark Fagan > TDA > Esat Business > 1 Grand Canal Quay > Dublin 2, Ireland. > E mark.faganat_private > www.esatbusiness.com > > > > > > ************************************************************************ > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > If you have received this email in error please notify the system manager. > > http://www.esatbusiness.com > > Subscribe to the Esat Business Online Magazine: > http://www.esatbusiness.com/news/subscribe.asp > > Subscribe to REALISE - the online magazine from BT Ignite: > http://www.btignite.com/realise > > ************************************************************************ > > > -------------------------------------------------------------------------- -- > This list is provided by the SecurityFocus ARIS analyzer service. > For more information on this free incident handling, management > and tracking system please see: http://aris.securityfocus.com > > -------------------------------------------------------------------------- -- > This list is provided by the SecurityFocus ARIS analyzer service. > For more information on this free incident handling, management > and tracking system please see: http://aris.securityfocus.com > ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
This archive was generated by hypermail 2b30 : Tue May 28 2002 - 15:33:04 PDT