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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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 Posted: Mon Dec 19, 2005 3:54 pm Post subject: Permissions |
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I'm trying to make it so my preferences in GAIM would be impossible to change.
I went into my .gaim directory and made the following change:
Before:
| Code: | | -rw------- 1 bigun users 10434 Dec 19 10:48 prefs.xml |
After:
| Code: | | -r--r--r-- 1 root root 10434 Dec 19 10:48 prefs.xml |
Would you believe after starting Gaim, making a few changes and exiting I see this.
| Code: | | -rw------- 1 bigun users 10434 Dec 19 10:54 prefs.xm |
How does gaim rewrite a root owned, read-only file?
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cokey
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Joined: 23 Apr 2004
Posts: 3355
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| Posted: Mon Dec 19, 2005 4:03 pm Post subject: |
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it probably doesn't change it, it probably gets deleted every time you close the application and a new one is created when you start it
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morodoch
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Joined: 22 Sep 2005
Posts: 523
Location: England
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| Posted: Mon Dec 19, 2005 4:04 pm Post subject: |
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If something has write permission on a directory, it's allowed to delete & rename files in that directory. So if you really want to be safe here, chown the directory as well as the files.
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Mon Dec 19, 2005 4:08 pm Post subject: |
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Since the file lies within my home directory anyway, GAIM would still have permission to wipe it, even if I chown the .gaim directory.
So, how would a prevent my settings from being changed then?
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morodoch
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Joined: 22 Sep 2005
Posts: 523
Location: England
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| Posted: Mon Dec 19, 2005 4:15 pm Post subject: |
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| Quote: | | Since the file lies within my home directory anyway, GAIM would still have permission to wipe it, even if I chown the .gaim directory. |
Depends how far up the tree it looks, if it just tries to delete it & recreate it, then removing write permission from the .gaim directory should do the trick - I doubt it tries to delete & re-create the whole tree every time.
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Well, the Sister was right. You boys could use a little churching up. Slide on down to the Triple Rock, and catch Rev. Cleophus. You boys listen to what he's got to say.
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Bigun
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Joined: 21 Sep 2003
Posts: 2198
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| Posted: Mon Dec 19, 2005 4:25 pm Post subject: |
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Finally got it, however GAIM still keeps it's settings in local memory even though it doesn't change the Preference file....
So the settings will only be kept if things are restarted.
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pjp
Administrator
Joined: 16 Apr 2002
Posts: 20488
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| Posted: Mon Dec 19, 2005 7:14 pm Post subject: |
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Depending on what FS it's on, take a look at chattr. With the correct chattr attributes, not even root can delete a file (until root changes the attributes).
Moved from Other Things Gentoo.
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