[gentoo-user] Permissions, permissions

[gentoo-user] Permissions, permissions

[Mick]

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Hi All,

This is a simple question but I'm getting tired and can't think straight with 
this permissions problem:

I am trying to create a directory within which two users will be able to save 
and delete documents.  This directory is only meant to be accessible/readable  
by these two users.

I created directory TEST, under /var/www/html.  This contains subdirectories 
TEST1, TEST2, TEST3.  Each subdirectory contains other files.  I set the 
permissions recursively to apache:ftp.  Both users are members of group ftp.  
I chmod -R g+w.

When I create a new subdirectory and save a file in it I noticed that it is 
mick:wheel instead of mick:ftp.  How do I set it up so that newly created 
directories/files inherit the parent group ownership?
-- 
Regards,
Mick

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[gentoo-user] Re: Permissions, permissions

[Guilherme Amadio]

On Mon, Oct 15, 2007 at 11:24:15PM +0100, Mick wrote:
> Hi All,
> 
> This is a simple question but I'm getting tired and can't think straight with 
> this permissions problem:
> 
> I am trying to create a directory within which two users will be able to save 
> and delete documents.  This directory is only meant to be accessible/readable  
> by these two users.
> 
> I created directory TEST, under /var/www/html.  This contains subdirectories 
> TEST1, TEST2, TEST3.  Each subdirectory contains other files.  I set the 
> permissions recursively to apache:ftp.  Both users are members of group ftp.  
> I chmod -R g+w.
> 
> When I create a new subdirectory and save a file in it I noticed that it is 
> mick:wheel instead of mick:ftp.  How do I set it up so that newly created 
> directories/files inherit the parent group ownership?
> -- 
  
  You are probably looking for something like newgrp/gpasswd.

  $ touch foo
  $ newgrp wheel
  $ touch bar
  $ ls -l foo bar
  -rw-r--r-- 1 amadio wheel  0 2007-10-15 20:39 bar
  -rw-r--r-- 1 amadio amadio 0 2007-10-15 20:39 foo
  $
  
  I hope this info was useful.

  Cheers,
  Guilherme


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Re: [gentoo-user] Permissions, permissions

[Allan Gottlieb]

At Mon, 15 Oct 2007 23:24:15 +0100 Mick <michaelkintzios@gmail.com> wrote:

> Hi All,
>
> This is a simple question but I'm getting tired and can't think straight with 
> this permissions problem:
>
> I am trying to create a directory within which two users will be able to save 
> and delete documents.  This directory is only meant to be accessible/readable  
> by these two users.
>
> I created directory TEST, under /var/www/html.  This contains subdirectories 
> TEST1, TEST2, TEST3.  Each subdirectory contains other files.  I set the 
> permissions recursively to apache:ftp.  Both users are members of group ftp.  
> I chmod -R g+w.
>
> When I create a new subdirectory and save a file in it I noticed that it is 
> mick:wheel instead of mick:ftp.  How do I set it up so that newly created 
> directories/files inherit the parent group ownership?

There are two possibilities for newly created subdirectories and
files in this directory.

1.  Same group as the creator.

2.  Same group as the parent directory.

If my memory is correct this is a bsd vs sysV distinction.

Nowadays you get to choose the behavior you want.

Since you want behavior 2 you want the set-group-ID bit set on the
parent and then newly created subdirectories and files in this
directory will inherit the group from the parent.

So you want to 

chmod +2000 parent-directory

The full story is in the info page Node: Directory Setuid and Setgid

I just read it to check my memory and found out that apparently some
systems use the set-user-ID bit so the page suggests

chmod +6000 parent-directory

which sets both.

Also this is a gnu extension and not required by POSIX.

allan gottlieb
new york university
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Re: [gentoo-user] Permissions, permissions

[Alan McKinnon]

On Tuesday 16 October 2007, Mick wrote:
> Hi All,
>
> This is a simple question but I'm getting tired and can't think
> straight with this permissions problem:
>
> I am trying to create a directory within which two users will be able
> to save and delete documents.  This directory is only meant to be
> accessible/readable by these two users.
>
> I created directory TEST, under /var/www/html.  This contains
> subdirectories TEST1, TEST2, TEST3.  Each subdirectory contains other
> files.  I set the permissions recursively to apache:ftp.  Both users
> are members of group ftp. I chmod -R g+w.
>
> When I create a new subdirectory and save a file in it I noticed that
> it is mick:wheel instead of mick:ftp.  How do I set it up so that
> newly created directories/files inherit the parent group ownership?

You want the setgid bit on for the directory. This causes all new files 
and directories in it to be owned by the same group that owns the 
top-most directory:

chmod g+s TEST

This won't change permissions on existing directories though, and you 
can't use chmod -R (that will sgid the files as well), so use find like 
so:

find TEST -type d -exec chmod g+s {} \;

You will also need to enable group write permission on these directories 
so that your users can delete stuff. Two ways:

1. Make sure both users use a umask like 775 (this is fragile as the 
user can change their umask any time they want)
2. Use an ACL on the directory. 'man setfacl' for more details

alan



-- 
Optimists say the glass is half full,
Pessimists say the glass is half empty,
Developers say wtf is the glass twice as big as it needs to be?

Alan McKinnon
alan at linuxholdings dot co dot za
+27 82, double three seven, one nine three five
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Re: [gentoo-user] Permissions, permissions

[Mick]

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On Tuesday 16 October 2007, Alan McKinnon wrote:
> On Tuesday 16 October 2007, Mick wrote:
> > Hi All,
> >
> > This is a simple question but I'm getting tired and can't think
> > straight with this permissions problem:
> >
> > I am trying to create a directory within which two users will be able
> > to save and delete documents.  This directory is only meant to be
> > accessible/readable by these two users.
> >
> > I created directory TEST, under /var/www/html.  This contains
> > subdirectories TEST1, TEST2, TEST3.  Each subdirectory contains other
> > files.  I set the permissions recursively to apache:ftp.  Both users
> > are members of group ftp. I chmod -R g+w.
> >
> > When I create a new subdirectory and save a file in it I noticed that
> > it is mick:wheel instead of mick:ftp.  How do I set it up so that
> > newly created directories/files inherit the parent group ownership?
>
> You want the setgid bit on for the directory. This causes all new files
> and directories in it to be owned by the same group that owns the
> top-most directory:
>
> chmod g+s TEST
>
> This won't change permissions on existing directories though, and you
> can't use chmod -R (that will sgid the files as well), so use find like
> so:
>
> find TEST -type d -exec chmod g+s {} \;
>
> You will also need to enable group write permission on these directories
> so that your users can delete stuff. Two ways:
>
> 1. Make sure both users use a umask like 775 (this is fragile as the
> user can change their umask any time they want)
> 2. Use an ACL on the directory. 'man setfacl' for more details

Thank you both!  sgid is what I was after.  The users are trusted (the server 
owner and myself) so that'll do for now.  I will also check acl, in case the 
need arises in the future for control of a finer granularity.
-- 
Regards,
Mick

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[gentoo-user] Problems with vlc

[Alfredo Perez]

Hi

I did an update of the system and I noticed that vlc got updated.
Now I can open movies but the rest of the gui does not come out.
What I am refering to is the gui where you can rew/ff the movie.

Any ideas why is not coming out?

Thanks in advance.

Alfredo

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Re: [gentoo-user] Problems with vlc

[Albert Hopkins]

On Wed, 2007-10-17 at 16:59 -0400, Alfredo Perez wrote:
> Hi
> 
> I did an update of the system and I noticed that vlc got updated.
> Now I can open movies but the rest of the gui does not come out.
> What I am refering to is the gui where you can rew/ff the movie.

Possibly check the wxwindows and skins USE flags?

# equery u vlc

I know if you build vlc w/o the wxwindows flag you get no gui.




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Re: [gentoo-user] Problems with vlc

[Danis Petkakis]

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check out this <http://forums.gentoo.org/viewtopic-t-600869-highlight-.html>post
in gentoo-forums...there seems to be a problem with
linking vlc with ansi although "unicode" flag is enabled and wxGTK aswell...

On 18/10/2007, Albert Hopkins <marduk@letterboxes.org> wrote:
>
>
> On Wed, 2007-10-17 at 16:59 -0400, Alfredo Perez wrote:
> > Hi
> >
> > I did an update of the system and I noticed that vlc got updated.
> > Now I can open movies but the rest of the gui does not come out.
> > What I am refering to is the gui where you can rew/ff the movie.
>
> Possibly check the wxwindows and skins USE flags?
>
> # equery u vlc
>
> I know if you build vlc w/o the wxwindows flag you get no gui.
>
>
>
>
> --
> gentoo-user@gentoo.org mailing list
>
>

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AW: [gentoo-user] Problems with vlc

[Zimmerling, Alexander]

hi there,

had a similar problem. I found a bugreport dealing with the problem.
here's the link: http://bugs.gentoo.org/show_bug.cgi?id=194300


Von: Alfredo Perez [mailto:alfredoj69@rogers.com] 
Gesendet: Mittwoch, 17. Oktober 2007 22:59
An: gentoo-user@lists.gentoo.org
Betreff: [gentoo-user] Problems with vlc

Hi

I did an update of the system and I noticed that vlc got updated.
Now I can open movies but the rest of the gui does not come out.
What I am refering to is the gui where you can rew/ff the movie.

Any ideas why is not coming out?

Thanks in advance.

Alfredo

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