A couple questions RE prepopulating passwords and RODC's

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hey everyone-

in 1 of our remote locations have 2 rodc's(global catalog , dns) that working fine long network link up. goes down nothing can authenticate against them. question comes in.

what 2 rodc's cache everything. credentials including user , computer. if link goes down want 2 servers continue authenticate people nothing happened. obviously they wouldn't updates (new users, etc) while link down, existing ones able authenticate normal. 

right have prp set users , computers allowed cache passwords. know need prepopulate these passwords work while link down. 

is there limit on how many passwords can cached? , if there way increase it? reading here and 1 person said there 1500 user limit. have more 1500 accounts need cached right now. 

also, best way these passwords prepopulated on regular basis? see can use repadmin /rodcpwdrepl prepopulate list of individual users, having hard time getting work in script.

thank in advance! 

yes, 1500 user limit in windows 2008, can't find if changed after that.

if more 1,500 accounts (users, computers, or groups) added allowed list (the msds-revealondemandgroup attribute) of rodc, rodc stops caching passwords security principals in allowed list. occurs when add security principals using either repadmin /prp <rodcname> allow <user_name> command or directly modifying msds-revealondemandgroup attribute of rodc using tool such active directory users , computers. workaround, add security principals (users, computers, groups) want cached on rodc group, add group allowed list, , remove these security principals allowed list. because members of group in allowed list, rodc can replicate passwords.

http://technet.microsoft.com/en-us/library/rodc-guidance-for-administering-the-password-replication-policy%28ws.10%29.aspx

http://technet.microsoft.com/en-us/library/cc753470%28ws.10%29.aspx#bkmk_pre

for getting script prepoulate password in bulk,since there no way directly prepopulate password groups need post in script section of technet script forums.

 

regards

awinish vishwakarma| my blog

disclaimer: posting provided as-is no warranties or guarantees , confers no rights.



Windows Server  >  Directory Services



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