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tdh
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Friday Apr 20, 2007

How to tell whether you are looking at a NFSv3 or NFSv4 mount point

This is under OpenSolaris:

[tdh@kanigix 1]> nfsstat -m /net/ultralord/f/1
/net/ultralord/f/1 from ultralord:/f/1
 Flags:         vers=4,proto=tcp,sec=sys,hard,intr,link,symlink,acl,rsize=1048576,wsize=1048576,retrans=5,timeo=600
 Attr cache:    acregmin=3,acregmax=60,acdirmin=30,acdirmax=60
Orginaly posted on NFSv4 in Action
Copyright (C) 2007, NFSv4 in Action

Posted at 02:54PM Apr 20, 2007 by tdh in FAQ  |  Comments[0]

Monday Mar 20, 2006

Comments were not being emailed

Sorry, the added comments were not being emailed to me. I fixed that and also touched up Q6 to have the AIX entry.

Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 05:02PM Mar 20, 2006 by tdh in Adminisitrivia  |  Comments[0]

Wednesday Mar 15, 2006

Q6: How do I change the ID domain?

Q: How do I change the ID domain (without rebooting)?

A:

  • Data ONTAP: 
    simcity> options nfs.v4.id.domain
internal.excfb.com
simcity> options nfs.v4.id.domain excfb.com
simcity>
  • Linux:

    Edit /etc/idmapd.conf and then:

    [tdh@adept ~]> sudo chkconfig rpcidmapd reset
[tdh@adept ~]>
  • Solaris:

    Edit /etc/default/nfs and then:

    ultralord # cat /var/run/nfs4_domain
internal.excfb.com
ultralord # svcadm restart svc:/network/nfs/mapid
ultralord # cat /var/run/nfs4_domain
excfb.com
  • AIX 5.3: 
    # chnfsdmn internal.excfb.com
# startsrc -s nfsrgyd
# chnfsdmn
internal.excfb.com

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Orginaly posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 12:14PM Mar 15, 2006 by tdh in FAQ  |  Comments[2]

Monday Mar 13, 2006

Q5: How do I determine which ID domain a machine belongs to?

Q: How do you determine the ID domain a machine thinks it belongs to?

A:

  • Data ONTAP: 
    simcity> options nfs.v4.id.domain
internal.excfb.com
simcity>
  • Linux: 
    [tdh@adept log]> sudo cat /proc/net/rpc/nfs4.idtoname/content
#domain type id [name]
  • Solaris: 
    ultralord # cat /var/run/nfs4_domain
excfb.com
ultralord #

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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 11:59AM Mar 13, 2006 by tdh in FAQ  |  Comments[0]

Saturday Mar 04, 2006

Q4: How come I can't mount a Filer via NFSv4?

Q: How come I can't mount a Filer (i.e., running Data ONTAP) via NFSv4?

A: Out of the box, Data ONTAP comes configured with NFSv4 disabled. To enable it, toggle the option nfsv.v4.enable on:

simcity> options nfs.v4.enable on
simcity>

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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 11:29PM Mar 04, 2006 by tdh in FAQ  |  Comments[0]

Q3: Why doesn't my keytab with Triple-DES work?

Q: Why doesn't my keytab work with Triple-DES?

A: Not all Kerberos implementations support Triple-DES. Solaris does, but neither of Linux nor Data ONTAP do.

If Kerberized access is not working, and non-Kerberized access is, then check out your keytab to see if Single-DES is supported. I know of 3 ways to help fix this problem:

  • Regenerate your keytab with DES support.
    • Either remove Triple-DES,
    • Or make sure DES is first. Some implementations will not work correctly if Triple-DES is first.
  • The TGS ticket enc types can be restricted on the client by changing the krb5.conf file to set the option default_tgs_enctypes to something like: des-cbc-crc.
  • Recreate the server's nfs principal to only include the single des enctype.

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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 11:23PM Mar 04, 2006 by tdh in FAQ  |  Comments[0]

Q2: Why do I still get nobody as an user for Data ONTAP?

Q: Why do I still get nobody as an user for Data ONTAP?

A: Because by default, Data ONTAP does not have an /etc/passwd file. You either need to enable NIS, LDAP, or create a /etc/passwd with correct content.


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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 11:12PM Mar 04, 2006 by tdh in FAQ  |  Comments[0]

Q1: Why do I get nobody as an user?

Q: Why do I get nobody as an user?

A: Because your idmap domains are out of whack.

[root@mrx ~]# ls -la /nfs4/will/loghyr
total 63
drwxr-xr-x  10 nobody nobody   512 Nov 10 11:02 .
drwxr-xr-x   3 root   root    4096 Nov  9 21:53 ..
drwxr-xr-x   3 nobody nobody   512 Nov  9 16:37 fedora
drwxr-xr-x  11 nobody nobody   512 Apr  4  2005 home

You can fix this in the following ways, each dependent on your OS:

  • Solaris edit /etc/default/nfs and make NFSMAPID_DOMAIN match your other box.
  • Linux edit /etc/idmapd.conf and make Domain match your other box.
  • Data ONTAP change the option nfs.v4.id.domain and make it match your other box.

I don't know how to do this for other OS variants. Please send me the details and I will add them.


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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 11:09PM Mar 04, 2006 by tdh in FAQ  |  Comments[1]

Mission statement

I've got FAQ type questions here and there at different sites. I ran into another one while at Connectathon 2006. I wanted an easy way to collect things and be able to dump them all in from anywhere I happened to be. I don't think my blog fits the bill, I write about many diverse things at Kool Aid Served Daily. I might also gripe about different vendors there.

No, I want a neutral place which is easy to search. So, I'm going to populate the FAQ here.


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Orginally posted on NFSv4 in Action
Copyright (C) 2006, NFSv4 in Action

Posted at 08:23PM Mar 04, 2006 by tdh in NFSv4  |  Comments[0]