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Problem with nfs sharing, permission denied for writing.

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Operating Systems Solaris Problem with nfs sharing, permission denied for writing.
# 15  
Old 06-29-2010
Quote:
Originally Posted by bartus11
What system is mounting that directory? Another Solaris?

No, the two machines are the same (same system specification and same operation system version)

after running the more /etc/release command in the both the result was :

in m1

Code:
# more /etc/release
                       Solaris 10 5/08 s10s_u5wos_10 SPARC
           Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 24 March 2008


in m2
Code:
# more /etc/release
                       Solaris 10 5/08 s10s_u5wos_10 SPARC
           Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 24 March 2008

# 16  
Old 07-01-2010
machine1 = NFS Server
machine2 = NFS client
/rootfolder = folder to be shared
/mountpoint = mount point on the client

1 - unmount and unshare the folder (just to start afresh)
2 - on the server side:
Code:
share -F nfs -o rw=machine2 /rootfolder

3 - on the client side:
Code:
mount -F nfs -o rw machine1:/rootfolder /mountpoint

Note: assuming machine1 and machine2 are in the /etc/hosts file
Note: userid (not username) on server and client side should be the same. Since you are share and accessing as root (UID=0), it shouldnot be a problem.
Last edited by Mack1982; 07-01-2010 at 09:15 AM..
# 17  
Old 07-01-2010
No, accessing NFS shares as root is a problem because the default is for the root user to be mapped to the nobody user.
# 18  
Old 07-01-2010
Are your servers both in the same NFSv4 authentication domain (/var/run/nfs4_domain) ?
# 19  
Old 07-01-2010
Quote:
Originally Posted by Mack1982
machine1 = NFS Server
machine2 = NFS client
/rootfolder = folder to be shared
/mountpoint = mount point on the client

1 - unmount and unshare the folder (just to start afresh)
2 - on the server side:
Code:
share -F nfs -o rw=machine2 /rootfolder

3 - on the client side:
Code:
mount -F nfs -o rw machine1:/rootfolder /mountpoint

Note: assuming machine1 and machine2 are in the /etc/hosts file
Note: userid (not username) on server and client side should be the same. Since you are share and accessing as root (UID=0), it shouldnot be a problem.
Thanks, but that does not solve my problem, still deny writing from machine2.

Quote:
Originally Posted by achenle
No, accessing NFS shares as root is a problem because the default is for the root user to be mapped to the nobody user.
Then, What should I do now?

Quote:
Originally Posted by jlliagre
Are your servers both in the same NFSv4 authentication domain (/var/run/nfs4_domain) ?
This file is exist, but it's empty too !
# 20  
Old 07-01-2010
NFSv4 doesn't map user ids like previous versions did. You should put your machines in the same domain (i.e. put the same domain name in both files, I don't think empty domains match together). Using root is also a bad practice, you'd rather use a non system account for your transfers.

Downgrading to NFSv3
Code:
mount -F nfs -o vers=3,...

might also fix some issues.
# 21  
Old 07-01-2010
Quote:
Originally Posted by jlliagre
NFSv4 doesn't map user ids like previous versions did. You should put your machines in the same domain (i.e. put the same domain name in both files, I don't think empty domains match together). Using root is also a bad practice, you'd rather use a non system account for your transfers.

Downgrading to NFSv3
Code:
mount -F nfs -o vers=3,...

might also fix some issues.
Thanks for advice, and the write still denied.

BTW, what nfs4_domain file should be contains ?
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