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тАО12-29-2010 04:58 AM
тАО12-29-2010 04:58 AM
It is possible to edit the one NFS file by multiple user at a time.
I have one doubt about the NFS file permission.
It is possible to edit the one NFS file by multiple user at a time.
If it is- what is the file permission
Thanks in advance
vinay
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тАО12-29-2010 05:07 AM
тАО12-29-2010 05:07 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
Typically there can only be one user using a text editor on the same file.
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тАО12-29-2010 06:04 AM
тАО12-29-2010 06:04 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
>>Typically there can only be one user using a text editor on the same file.
Actually, that's not true. UNIX follows the 'he who writes last, wins' paradigm. Drove my brother-in-law (who works on mainframes) absolutely bonkers.
Typically, there *should* be only one admin working on the same file at a time; however, there's nothing in the OS preventing that.
Doug
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
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тАО12-29-2010 11:22 AM
тАО12-29-2010 11:22 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
Didn't I say that? :-)
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тАО12-29-2010 07:12 PM
тАО12-29-2010 07:12 PM
Re: It is possible to edit the one NFS file by multiple user at a time.
vi editor in HP-UX allows multiple persons to open / edit same file. But as Doug said, 'he who writes last, wins'
But in Linux, it shows on screen, this file has locked by somebody else. Sadly, nothing like this in HP-UNIX.
Shibin
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тАО12-30-2010 01:44 AM
тАО12-30-2010 01:44 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
I will give the clear scenario.
1. User A and B have same 777 permission.
2. It is possible to write same file in NFS mount point, by both A and B
3.If it is possible how it is working any technology involved in this method.
Thanks
vinay
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тАО12-30-2010 01:46 AM
тАО12-30-2010 01:46 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
vim will tell you the file modification date has changed since you started but that may be too late.
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тАО12-30-2010 01:54 AM
тАО12-30-2010 01:54 AM
Re: It is possible to edit the one NFS file by multiple user at a time.
(Typically files have that type of permission, not users.)
>2. It is possible to write same file in NFS mount point, by both A and B
Sure but you need to have them synchronize what they are doing.
>3. If it is possible how it is working any technology involved in this method.
The same as if it is being done locally, except the I/O requests are sent to the NFS server.
What are you really trying to do/ask?