|May the source be with you, but remember the KISS principle ;-)|
|Contents||Bulletin||Scripting in shell and Perl||Network troubleshooting||History||Humor|
|News||Recommended Links||Sun Documentation||Tutorials||Reference||HOWTO||FAQs||RFCs|
|share command||dfshares Command||dfstab File||Mounting NFS Resources||/etc/vfstab File||AutoFS and automountd daemon||NFS Security||Nfsstat|
|NFS logging||Troubleshooting||Linux NFS||SFU NFS implementation||History||Tips||Humor||Etc|
NFS resources can be shared using the share(1M) command and unshared using the unshare(1M) command. In addition, any resources identified in the /etc/dfs/dfstab file are automatically shared at system boot or when the shareall(1M) command is used. Shared resources are automatically recorded in the /etc/dfs/sharetab file. When the unshareall(1M) command is used, all resources listed in the /etc/dfs/sharetab file are automatically unshared.
Actually, the NFS server is started automatically if /etc/dfs/sharetab contains at least one entry. NFS server starts at level 3. To start the NFS server daemons or to specify the number of concurrent NFS requests that can be handled by the nfsd daemon, use the /etc/rc3.d/S15nfs.server script.
The NFS client is started at run level 2.
Many users experience difficulties trying to mount the Unix server directory with write access (rw) from SFU (see posts in the News section of SFU NFS page )
One way to get write access UID and GUI od the users should match and share command should specify the IP for sharing. For example the following works with Solaris server sharing home directory with Windows client:
share -F nfs -o rw=10.194.155.10 /export/home/bezroun
The share command is used to share NFS resources so that NFS clients can mount and access them. At a minimum, the full pathname of the directory (or mount point of the file system) to be shared is specified as a command-line argument.
In addition, three other command-line arguments are supported:
The -d command-line argument is followed by a description of the data being shared.
The -F nfs command-line argument is used to specify the type of file system. If not specified, the default file system type listed in the /etc/dfs/fstypes file (NFS) is assumed.
The -o command-line argument is followed by one or more NFS-specific options (separated by commas).
The share command options for NFS are listed below (important are in bold):
anon=uid Assigns anonymous users the specified
Anon=-1 blocks access to users that have
no accouts on the system.
Prevents clients from mounting subdirectories
of shared resources.
Prevents clients from setting setuid
or setgid access modes on files.
Specifies a public file handle.
Allows read-only access.
Allows read-only access to those clients
specified by list.
Allows root access to root user on clients
specified by list.
Allows read/write access.
Allows read/write access only to those
clients specified by list.
Uses one or more of the security
modes specified by mode to authenticate clients.
Sets the maximum lifetime for a client's
credentials to value seconds.
The following listing shows how the share command allows NFS clients to mount the /export/home file system, including WebNFS clients. All clients will have read-only access:
# share -F nfs -o public,nosuid,ro,anon=-1 /export/home
# share -F nfs -o rw=usera:userb /somefs
If the share command is used without any command-line arguments, the currently shared resources will be listed.
The unshare command is used to stop the sharing of NFS resources so that NFS clients can no longer mount and access them. At a minimum, the full pathname of a directory (or mount point of the file system) that is currently shared is specified as a command-line argument.
Only one other command-line argument is supported: the -F nfs command-line argument, which is used to specify the type of file system. If not specified, the default file system type listed in the /etc/dfs/fstypes file (NFS) is assumed.
The following listing shows using the unshare command to stop the sharing of the /export/home file system:
# unshare -F nfs /export/home
The /etc/dfs/dfstab file specifies resources that should be shared automatically when the system is changed to run level 3 or when the shareall command is used.
This file can be modified using any text editor. To automatically share a resource, add a line to the /etc/dfs/dfstab file that contains the share command with the desired command-line arguments and options that would have been entered manually. To remove automatic sharing of a resource, delete the appropriate share command from /etc/dfs/dfstab.
The following entry from /etc/dfs/dfstab is used to share the /export/home directory:
share -F nfs -o public,nosuid,ro,anon=-1 -d "home directories" /export/home
You might be wondering why some of the directories, files, and even commands associated with NFS use the phrase dfs or df. This comes from the System V (5) version of the Unix operating system. Originally, Distributed File Systems (DFS) had two variations: NFS and the Remote File System (RFS). Directories, files, and commands that used the dfs phrase were used to manage and configure both types of file systems. Since then, RFS has disappeared, leaving behind the DFS legacy.
The shareall command is used to share one or more resources. If the -F nfs command-line argument is not specified, the default file system type (NFS) is assumed. If the name of a file (that contains one or more share commands) is not specified as a command-line argument, the /etc/dfs/dfstab file is used by default.
The unshareall command is used to unshare all currently shared resources. If the -F nfs command-line argument is not specified, the default file system type (NFS) is assumed.
The dfshares(1M) command is used to list shared resources on either the local or a remote system. If the hostname (or IP address) of a remote system is specified as a command-line argument, the resources shared on that system are listed.
In addition, two other command-line arguments are supported. The -F nfs command-line argument is used to specify the type of file system. If not specified, the default file system type listed in the /etc/dfs/fstypes file (NFS) is assumed. If the -h command-line argument is specified, the header describing the columns of the resource listing is not displayed.
In addition, information on locally shared resources can be obtained from the /etc/dfs/sharetab file. This file is updated by the share, shareall, unshare, and unshareall commands to reflect the currently shared resources.
FAIR USE NOTICE This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit exclusivly for research and educational purposes. If you wish to use copyrighted material from this site for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner.
ABUSE: IPs or network segments from which we detect a stream of probes might be blocked for no less then 90 days. Multiple types of probes increase this period.
Groupthink : Two Party System as Polyarchy : Corruption of Regulators : Bureaucracies : Understanding Micromanagers and Control Freaks : Toxic Managers : Harvard Mafia : Diplomatic Communication : Surviving a Bad Performance Review : Insufficient Retirement Funds as Immanent Problem of Neoliberal Regime : PseudoScience : Who Rules America : Neoliberalism : The Iron Law of Oligarchy : Libertarian Philosophy
War and Peace : Skeptical Finance : John Kenneth Galbraith :Talleyrand : Oscar Wilde : Otto Von Bismarck : Keynes : George Carlin : Skeptics : Propaganda : SE quotes : Language Design and Programming Quotes : Random IT-related quotes : Somerset Maugham : Marcus Aurelius : Kurt Vonnegut : Eric Hoffer : Winston Churchill : Napoleon Bonaparte : Ambrose Bierce : Bernard Shaw : Mark Twain Quotes
Vol 25, No.12 (December, 2013) Rational Fools vs. Efficient Crooks The efficient markets hypothesis : Political Skeptic Bulletin, 2013 : Unemployment Bulletin, 2010 : Vol 23, No.10 (October, 2011) An observation about corporate security departments : Slightly Skeptical Euromaydan Chronicles, June 2014 : Greenspan legacy bulletin, 2008 : Vol 25, No.10 (October, 2013) Cryptolocker Trojan (Win32/Crilock.A) : Vol 25, No.08 (August, 2013) Cloud providers as intelligence collection hubs : Financial Humor Bulletin, 2010 : Inequality Bulletin, 2009 : Financial Humor Bulletin, 2008 : Copyleft Problems Bulletin, 2004 : Financial Humor Bulletin, 2011 : Energy Bulletin, 2010 : Malware Protection Bulletin, 2010 : Vol 26, No.1 (January, 2013) Object-Oriented Cult : Political Skeptic Bulletin, 2011 : Vol 23, No.11 (November, 2011) Softpanorama classification of sysadmin horror stories : Vol 25, No.05 (May, 2013) Corporate bullshit as a communication method : Vol 25, No.06 (June, 2013) A Note on the Relationship of Brooks Law and Conway Law
Fifty glorious years (1950-2000): the triumph of the US computer engineering : Donald Knuth : TAoCP and its Influence of Computer Science : Richard Stallman : Linus Torvalds : Larry Wall : John K. Ousterhout : CTSS : Multix OS Unix History : Unix shell history : VI editor : History of pipes concept : Solaris : MS DOS : Programming Languages History : PL/1 : Simula 67 : C : History of GCC development : Scripting Languages : Perl history : OS History : Mail : DNS : SSH : CPU Instruction Sets : SPARC systems 1987-2006 : Norton Commander : Norton Utilities : Norton Ghost : Frontpage history : Malware Defense History : GNU Screen : OSS early history
The Peter Principle : Parkinson Law : 1984 : The Mythical Man-Month : How to Solve It by George Polya : The Art of Computer Programming : The Elements of Programming Style : The Unix Haterís Handbook : The Jargon file : The True Believer : Programming Pearls : The Good Soldier Svejk : The Power Elite
Most popular humor pages:
Manifest of the Softpanorama IT Slacker Society : Ten Commandments of the IT Slackers Society : Computer Humor Collection : BSD Logo Story : The Cuckoo's Egg : IT Slang : C++ Humor : ARE YOU A BBS ADDICT? : The Perl Purity Test : Object oriented programmers of all nations : Financial Humor : Financial Humor Bulletin, 2008 : Financial Humor Bulletin, 2010 : The Most Comprehensive Collection of Editor-related Humor : Programming Language Humor : Goldman Sachs related humor : Greenspan humor : C Humor : Scripting Humor : Real Programmers Humor : Web Humor : GPL-related Humor : OFM Humor : Politically Incorrect Humor : IDS Humor : "Linux Sucks" Humor : Russian Musical Humor : Best Russian Programmer Humor : Microsoft plans to buy Catholic Church : Richard Stallman Related Humor : Admin Humor : Perl-related Humor : Linus Torvalds Related humor : PseudoScience Related Humor : Networking Humor : Shell Humor : Financial Humor Bulletin, 2011 : Financial Humor Bulletin, 2012 : Financial Humor Bulletin, 2013 : Java Humor : Software Engineering Humor : Sun Solaris Related Humor : Education Humor : IBM Humor : Assembler-related Humor : VIM Humor : Computer Viruses Humor : Bright tomorrow is rescheduled to a day after tomorrow : Classic Computer Humor
The Last but not Least
Copyright © 1996-2016 by Dr. Nikolai Bezroukov. www.softpanorama.org was created as a service to the UN Sustainable Development Networking Programme (SDNP) in the author free time. This document is an industrial compilation designed and created exclusively for educational use and is distributed under the Softpanorama Content License.
Original materials copyright belong to respective owners. Quotes are made for educational purposes only in compliance with the fair use doctrine.
FAIR USE NOTICE This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available to advance understanding of computer science, IT technology, economic, scientific, and social issues. We believe this constitutes a 'fair use' of any such copyrighted material as provided by section 107 of the US Copyright Law according to which such material can be distributed without profit exclusively for research and educational purposes.
This is a Spartan WHYFF (We Help You For Free) site written by people for whom English is not a native language. Grammar and spelling errors should be expected. The site contain some broken links as it develops like a living tree...
|You can use PayPal to make a contribution, supporting development of this site and speed up access. In case softpanorama.org is down you can use the at softpanorama.info|
The statements, views and opinions presented on this web page are those of the author (or referenced source) and are not endorsed by, nor do they necessarily reflect, the opinions of the author present and former employers, SDNP or any other organization the author may be associated with. We do not warrant the correctness of the information provided or its fitness for any purpose.
Last modified: September 12, 2017