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  • Blog Post: Where are my maps?

    Where are my maps? If you create an advanced username maps and wonder where it is stored then you should look into the following registry key: HKLM à System à CurrentControlSet à Services à Mapsvc à CurrentVersion: AdvancedUserMaps and AdvancedGroupMaps These registry keys...
  • Blog Post: rpcinfo command returns error “RPC: failed to connect portmap”

    Recently we got an issue where Unix clients were unable to access NFS resource hosted on a Windows 2008 cluster environment. Upon troubleshooting we also found that even rpcinfo –p to localhost return an error "RPC: failed to connect portmap”. Even running the ‘showmount –e localhost’ from local machine...
  • Blog Post: Managing Permission on NFS share

    Unix style permission is bit different from Windows style permission. Files and directories are owned by a user unlike Windows where it can be owned by a group also. Permissions on Unix-like systems are managed in three distinct classes. These classes are known as user, group, and others. Users who...
  • Blog Post: Important Tips on NFS (Part 3)

    Why we are unable to do a p ersistent mount across logons? Even using the command below to mount NFS share does not work: Ø net use W: \\Server\Sharename /persistent:yes This behavior is by design and due to security enhancement in Windows. NFS mounted drive letters are session specific...
  • Blog Post: Important Tips on NFS (Part 1)

    How can we map users in Windows 2008? In windows 2008\2008 R2, we have the following options: 1. Fetching maps from a windows 2003\2003 R2 mapping server 2. Using Adlookup for mapping domain accounts 3. Using ADLDS for local accounts Why the mapping information is not getting saved...
  • Blog Post: Replacing everyone group through Registry – NFS

    We recently had a query, where customer was trying to configure the following registry key so that the NTFS permission for the files which are created from Unix client on a NFS share changes from Everyone group to any group as specified in the below registry. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft...
  • Blog Post: Unable to move NFS resource from one cluster node to other

    One of the common issue on NFS as a cluster resource is that during failover the resource fails to move from one node to other. The network name is moved but the NFS resource shows the status as “Failed” This usually happen due registry corruption. Server for NFS service has to be started in certain...
  • Blog Post: Password sync not working between Windows to Unix

    Recently we got case where password Sync was not working. Customer had configured password Sync on a Windows 2003 R2 Domain controller. While troubleshooting we confirmed that the password Sync settings were correct. 1. On Windows Box: Open IDMU – Password Sync- properties a) “ Windows...
  • Blog Post: Important Tips on NFS (Part 2)

    Why I am unable to change ownership from Windows clients? This is due to the default Unix style behavior. In Unix side only root can delete files which he is not the owner. Hence from Windows clients even if the user has full permission (i.e. if the file has the permission 777 from Unix), still...