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NFS4ERR_WRONGSEC handling z/OS Network File System Guide and Reference SC23-6883-00 |
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NFS servers fail an NFS request with NFS4ERR_WRONGSEC if the security policy on the mount point at the server's end does not allow the authentication flavor with which the request was issued. After receiving this error, the z/OS NFS client negotiates security with the NFS server by issuing a SECINFO operation to query the server-supported security flavors. The z/OS NFS client chooses a security flavor from the server supported flavors based on the order of preference specified in Mount point establishment and retries the failing request with this newly-chosen security flavor. This security flavor serves as the designated security flavor for all future accesses to that mount point. The following should be noted with regards to Security Negotiation during NFS4ERR_WRONGSEC handling:
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