On Thu 13 Nov, 1997, sirbruce@ix.netcom.com wrote:
the writes failing when it goes into "normal" permission mode. But it did not occur from a Solaris client. I didn't get a packet trace at the time, so I couldn't figure out if it was a problem with the filer, the OS, or in the way wuftpd is coded. Never tired Digital Unix, but
I've had it happen with SunOS 4.1.x as the client.
I even put in a call to NetApp support about it, asking them if they'd had any prior experience of this happening. (It would seem they didn't recognise the behaviour. Shame.)
What it seemed to be was that if you open a file as one user, and then change user (as wu-ftpd does) some OS's do the wrong thing when it comes to the NFS auth info that they send with each NFS request.
(Someone can step in here and explain which is the correct way that a client should behave. I forget, and I don't have the tcpdump handy that demonstrated it. I could undoubtedly find it if necessary.)
-- jrg.