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Mark Knecht wrote: |
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> Hello, |
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[...] |
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> There have been no changes or updates of any kind to the remote |
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> machine that has the NFS directory exported. Normal updates have been |
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> occurring on my AMD64 machine so presumably the problem is on this |
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> machine as none of the remote files are writable anymore. One thing I |
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> notice is that on the remote machine there are some directories and |
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> files which have user names and some which only have numbers like 501, |
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> 502, etc. |
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> |
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> Where would I start looking for what's changed? |
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|
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The file system stores a user id for the owner and group. ls looks up the user |
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id in /etc/passwd and shows you the username instead. You can make ls show user |
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id's instead of names with `ls -ln`. |
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When you see numbers such as 501 in the directory listing that means the user or |
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group who had that user id is not found in /etc/passwd or /etc/group. |
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|
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The user id's on all the machines you use with NFS have to be the same. I found |
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this in the HP-UX documentation via google: |
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|
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>>>> From: http://docs.hp.com/en/5991-1153/ch02s01.html#bghdjbfa |
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|
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To Set User IDs and Group IDs (if neither NIS nor NIS+ is used) |
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* Create one /etc/passwd file and one /etc/group file that contain all the users |
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and groups on the network, and then copy these files to all the machines on the |
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network. |
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or |
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|
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* Edit the /etc/passwd and /etc/group files on each machine to ensure that the |
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following conditions are true: |
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o Each user has the same user ID on all machines where that user has an account. |
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o No two users anywhere on the network have the same user ID. |
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o Each group has the same group ID on all machines where that group exists. |
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o No two groups on the network have the same group ID. |
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When users request NFS access to remote files, their user IDs and group IDs are |
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used to check file ownership and permissions, just as they are locally. |
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If a user has one user ID on an NFS client and a different user ID on an NFS |
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server, the server will not grant the user access to his or her files on the |
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server, because it thinks the files belong to someone else. |
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If a user on one machine has the same user ID as a user on another machine, one |
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user may gain access to the other user's files. |
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|
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>>>> |
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|
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Perhaps your user ids don't match. I've been bitten by this before sharing |
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between Mac OS X, Gentoo, and Ubuntu. Hope this helps. |
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-- |
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Sam |
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-- |
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gentoo-amd64@g.o mailing list |
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