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We have some issues with homedirs on our NFS server (SUN S7110). When we change the owner of a file it seems the old uid is cached. The ls -l still shows the old uid. On other systems which mount the same homedir the has the new uid. Is there a caching mechanism or something like that?

We use opensolaris B134 and autofs to mount the homedirs.

Thanks, Martijn

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Yes, attributes such as uid are cached by the NFS client. On Solaris & OpenSolaris the options to control how long they're cached are documented in the mount_nfs(1m) man page - see the option names starting with ac like actimeo and the later man page sections they reference, such as File Attributes and Specifying Values for Attribute Cache Duration Options.

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