NFS export insecure option - can port snooping show reason to use?
Hello,
I tried to mount a RH Linux 6.2 NFS share to OMVS on Mainframe. Would not mount and no clear error message on OMVS. Turns out Linux required "insecure" export option to mount on OMVS. Seems OMVS uses ports above 1024 for NFS and Linux ports below 1024. I did not see any errors in /var/log/messages on Linux. Is there a way to snoop these ports on Linux, to determine if this option is needed? Thanks Joe |
you can always set NFS to export at specific ports. also what vs of NFS is OMVS using?
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Hello,
Exact version of NFS OMVS runs is unclear. Based on z/OS 1.13 release. IBM states ports it uses cannot be over ridden, so looking more at tracing error from Linux side( RH 6.2 ), if possible. SUN Solaris has "snoop", not sure what Linux offers for this. Any suggestions? Thanks Joe |
It almost sounds like NFSv2. NFS v4 uses 2049
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Quote:
if it is the other way, then RHEL will not care what port(s) NFS is hosted on as long as you can see the port and connect your set. if you are running a much older vs of NFS on the other OS, then you should upgrade. if you can not... it might be a good idea to move the NFS share off of the much older server onto something much newer. um, when you say RedHat 6.2 are you referring to RHEL 6.2 or are you talking about RedHat Linux 6.2? If you are talking RedHat Linux, then you need to upgrade that as its been out of support for over 10 years. |
Thanks very much for your response. Sounds like there is more I need to research.
Joe |
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