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الخميس، ١١ أكتوبر ٢٠١٢

Do you want to reinstall that domain?


بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم

Do you want to reinstall that domain?


I was creating a child domain, but the installation wizard poped up with the previous error message:

"Directory configuration information indicates that the domain child.mydomain.com already exists. Do you want to reinstall that domain? If you click Yes, all information about the prior Active Directory Domain Services domain installation will be deleted."

 some search on the internet for this problem i have seen som solutions but they did not work.
finally i came across a thread in a forum, which stated that:

"This problem occurs when you are using cloned virtual machines that have the same SID".

I have mad a new virtual machine "clean installation" from the beginning.

Finally thanks to Allah it worked.

Hope that has been informative to you.

ولا تنسوني والمسلمين من صالح الدعاء

وصلي الله وسلم وبارك علي النبي وآله وصحبه وإخوانه وسلم

Solved: I Can Ping The DNS Server But I Can Not Resolve Names ! !!


بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم

Solved: I Can Ping The DNS Server But I Can Not Resolve Names!


























Consider the previous topology, i was creating a child domain in Alex, i have set the DNS in the network properties to use 192.168.1.1 which is the ip address of Cairo_DC, however i could ping the ip address but i couldn't resolve names consequently i could not promote the Alex_DC to the active directory.
playing around this issue for sometime, i remembered that the ip helper address command used on Cisco router could also be used to forward traffic to DNS that is not located on the same subnet. As you know this command is used commonly for DHCP relay agent feature.
to sum up:
I have entered the following command under  interface f1/0:
ip helper address 192.168.1.1
And finally thanks to Allah it worked.

Hope that has been informative to you.

ولا تنسوني والمسلمين من صالح الدعاء

وصلي الله وسلم وبارك علي النبي وآله وصحبه وإخوانه وسلم