Debian :: Users / Groups Setup And Permissions
Jul 13, 2010
I am used to setting up users and groups on my daughters computers with Ubuntu installed.
user: magz (daughter)
user: nigel (me)
group: nima
We each have our own folder for files i.e. magz and nige. This has always worked well and it didn't matter which user is logged in we could create and access files in the other users folder with full permissions.
root@nbsq: /media/2xfi/files# ls -l
total 8
drwxrwxr-x 9 nigel nima 4096 Jul 13 09:45 magz
drwxrwxr-x 3 nigel nima 4096 Jul 13 09:45 nige
I have finally got around to getting her to try Debian which I always use, however I have never had to set up users, groups etc in Debian (squeeze) so I just did what I'm used to with Ubuntu. What I've found is that if I create a folder while I am logged in then that folder cannot be accessed by my daughter when she is logged in and the same applies if she creates a folder then I cannot access it when I am logged in, unless of course I use terminal to change the owners. In each case with the new folder the owner will be: root and the group will be: root. I would have thought what works for Ubuntu would work for Debian, however there must be differences.
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Nov 2, 2010
I have a remote directory shared over NFS called tech with perms set as 0750 and owner set to root:tech. I have 2 groups: tech, and techAdmin. tech can read and execute within tech/. techAdmin can read, write, execute. I have 4 users: user1, user2, user3, user4. user1 and user2 is a member of techAdmin, user3 and user4 are members of tech. simple so far...but wait here's the problem. If user1 creates a file inside tech, user2 cant read or modify it because user1 owns it. Here's a few sites that reference this problem:
[code]....
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Aug 7, 2010
I would like to ask:How do I setup LDAP auth of users/groups on Debian 5.0?Is it using LDAP Migration tools? Can be done differently? Using different tool? Some nice tootorial?Some up to date book for LDAP or I need to dig in openldap.org?I'm learning by book which is a lil bit older so Im bit confused.
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Feb 12, 2009
this directory has permissions 750 and is owned by user1 and group user1 I have an admin user that is primarily a part of group admin, but also a part of group user1 what would stop admin from having read and execute permissions on this directory? I'm running clamav and have a clamd daemon running as user admin (I could run it as any user, and I may make a special user later, but I don't want to run it as user1, user2, etc).
I have 2 (technically lots more, but let's just say 2 for now) users, user1 and user2 that have home directories /home/user1 and /home/user2. each is owned and group owned by user1:user1 and user2:user2 respectively with permissions of 750. my admin user is part of groups admin, user1, and user2 I need this to be able to scan my user's directories using the command (is this correct?):
clamdscan --move=/files/quarantine/ --config-file=/etc/clamd.d/adm.conf /home/user1/file
doing this gives the error:
/home/user1/file: lstat() failed. ERROR
If I change the directory permissions to 755, it works fine.Or if I leave the permissions 750 and change the directory group ownership to admin, it works fine. So, why would this be? Obviously it is a permissions issue, but why is it not reading admin as part of the user1 group and allowing the same permissions as it does when making the directory group-owned by admin?
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Sep 15, 2009
Having set up many windows servers with complex permissions on shared folders, I now have to do the same in Linux (and I'm such a noob to Linux) I understand that each file/folder is assigned a user + group, and that the rights can be set for the user, the group and global (aka everybody else) My challenge is this, inside my shared folder there is a folder that should be RW to some users, READ ONLY to others, and not accessible at all to the rest of the users. (lets call the folder MyFolder ) All 3 groups have more than 1 user, so they have to be groups (right?) How would this model work in Linux ? If there is no other way, I guess I can nest the MyFolder in a folder that has permissions to allow all users that may access MyFolder, and block the rest, then on MyFolder, set owner group the RW users, and set global to READ ONLY.
Ps : The server I'm setting up runs Debian Lenny, files will be accessed from windows workstations using samba.
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Aug 26, 2011
Running Wheezy with an XFCE desktop. Is there anything I can install to manage users and groups from a gui
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Feb 27, 2015
I'm building a small web gui to connect a 3g modem with wvdial via web interface using perl cgi. Which permissions I should use. Now when doing "wvdial 3gconnect" from the perl script it don't have permission to do anything, reading config files, accessing the modem etc.
Its just a little raspberry with only 1 user not available from the internet so its not a problem with loose security. Is there some easy way to let the www-data user get system wide permission without setting the permissions on each thing it should access?
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Aug 1, 2010
I have a FTP server (vsftpd), and would like to setup different file permissions for different groups:
-"ftpusers" group should only be able to browse and download.
-"ftpadmins" group should be able to browse, download, AND WRITE (RNFR, RNTO, MKDIR....).
Let's say my main directory is /var/ftp/docs/. It should be accessible by "ftpusers" group, but only writeable by "ftpadmins" group. Other groups or users may not access it. Which permissions and ownership should I give? My problem is that the dir can't be owned by two groups...
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Nov 12, 2009
I'm setting up a Fedora 11 server for the company of one of my friends. So far so good. But now he has asked me to setup access restrictions to folders through samba. Now I'm quite familiar with user access policies, even though I'm quite new to the GNU/Linux world. What I want to know is : what is the best way to give and remove, on the go, rwx access for a specific user to a certain folder in a linux system? Can I create groups for each folders, whose members will have the given permissions? Or do I have to create users for each folder and add to their group the user witch i want to give privilege to?
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Nov 26, 2010
We are a school and we share a samba folder with students and teacher groups. What we are trying to do is:
- Give students group users the permissions to rwx own files in folder
- Students must not be able to do anything with others files. I mean nothing so, at most, they could see the files in folder but not read it.
- Teachers can do anything with files in folder
As you can imagine, the idea is that students deliver their exams in that folder without the ability to read/copy the other students files. With sticky bit we can restrict students permissions to their own files, that is ok, but how to restrict all the permissions on other students files without restricting student access to that folder?
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Dec 20, 2010
I am logged in with the account i created with ubuntu back in 10.4 but i cant do anything with the users and groups management tool any idea's what might be wrong? It also doesnt ask to escalate provilages when i run it which i suspect is part of the issue.
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Nov 13, 2010
i have 5 groups, i want to set 3 of them to have full permissions to a folder and set 2 others with read only to same folder, please help me to solve this problem. in other words i want to set this 5 groups diffrent permissions to a folder.
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Jun 6, 2011
I am having problems with groups and file permissions. I have a file owned by myself
Code:
-rw-rw-r-- 1 diblemar users 2.1K Jun 3 06:02 /cluster/shared/Injects/1404_1405_1000033606_79964.return.xml
I want to modify the file using a cgi script running on an apache server (on the same machine). Both diblemar and apache are in the same group.
Code:
apache:x:48:diblemar
However, I receive a file permissions error when I try to modify the file. I assumed that with the permission settings above apache would be able to modify a file owned by someone else in the apache group.
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Dec 30, 2010
I'm running 10.10 64-bit and have configured it for root graphical login for administration of the system. When I log in as root, I can run all menu items in System -> Administration with the exception of Users and Groups. When I try running this, the application starts, but I only get an animated spinning disk that doesn't stop, can't modify the users properties and I can't close the application unless I go to System -> Administration -> System Monitor -> Processes tab , highlight users-admin and click End Process.
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Apr 30, 2010
If there are more tools that can be used to add users and groups, can someone direct me on how to find this information out, or can someone compile a list of tools?
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Dec 23, 2010
Is it possible to nest groups so that users can access directories owned by other groups?
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Jan 18, 2010
how to add users to groups with ldap? Further, could someone point me towards some good command-line management tools? Creating each dn manually is going to get old real fast...
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Mar 31, 2010
I have centos 5.4 installed (2.6.18-128.2.1.el5 #1 SMP Tue Jul 14 06:36:37 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux), and I am using WHM/Cpanel to manage my server. I am looking for a GUI utility, so I can graphically manage users/groups.
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May 25, 2010
i wonder, why nobody has written about it ...
How can i grant permission for files to specific user or specific group ??
Updated:
We have 3 groups: "g12" ("u1" and "u2), "g34" and "g56".
"g12" should only read the file.
"g34" should write and read it.
"g56" should have all permissions (rwx).
And others should not access the file at all.
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Jan 17, 2010
Slackware 13 64 bit Hp Photosmart c4280 USB (All-in-one)
- Printer successfully configured using CUPS
- Scanner only works when I am Root.
- When trying to access scanner as user it says there is no scanner attached.
What should be the groups for this user in order to access the scanner? Actually, they are: haldaemon, disk, audio, video, cdrom, plugdev, power, scanner, lp. Below are the outputs for sane-find-scanner (as both root and user), although, since the scanner works well under root, I am almost sure it is a problem with setting permissions and groups.
Quote:
# sane-find-scanner
# sane-find-scanner will now attempt to detect your scanner. If the
# result is different from what you expected, first make sure your
# scanner is powered up and properly connected to your computer.
[code]....
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Feb 10, 2010
Imported users and groups (UIDs 500 and above) from Redhad to Ubuntu 9.10 by appending users to the passwd, shadow and group files. Users and groups appear to work, but they do not show in the Users/Groups GUI. Is that because they do not start at a UID 1000 and up? What are my options to make them visable?
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May 7, 2010
How do you create users and groups by using CLI tools?
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May 8, 2010
I upgraded from 8.04LTS to 10.04LTS desktop. I can do sudo as root at the terminal, but I can't pass authentication trying to add a user (System->Administration->Users and Groups).
Here is what I got: An error occurred while checking for authorizations: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. You may report this as a bug.
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Jun 13, 2010
I recently tried installing a new version of VirtualBox PUEL version, after uninstalling an earlier version. But the major issue I have now is that I can no longer modify my User Settings. Clicking on the "Autnenticate" icon gets me a failure notice: "System policy prevents modifying the system configuration", with details reading "Action: org.freedesktop.systemtoolsbackends.set". Hovering over this link says to click on the link to edit the file, but nothing happens. Searching the file system tells me this file does not exist. Prior to this episode with VirtualBox, I had no trouble modifying Users and Groups. I was able to remove a group from the command line, but the cannot get the GUI authorization to work. I have searched the forums and bugs for similar problems, and, although there appear to be a number of similar issues, no where can I find any clear information on how this system is supposed to work, or what I need to do to correct the problem.
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Nov 8, 2010
I recently installed 10.10 on a Mac Powerbook G4. Everything seems to be working ok, except I cannot access the Users and Groups. If I try to launch it from the terminal I get the following error: "Glib-GIO-ERROR **: Settings schema 'org.gnome.system-tools.users' is not installed"
This is a clean install, with no changes made to the system. I then ran all the waiting updates and am still experiencing this problem.
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Dec 7, 2010
I am building a livecd, the live user created at boot time is a member of the audio group set in /etc/group. This way works for the livecd but when installed a user must manually add himself to the audio group. How can I set new users to automatically become a member of the audio group? In /etc/default/useradd I can set only one group.
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Jan 13, 2010
I've just set up NIS on my home network (probably not necessary on this scale, but I wanted to try it out). The server and the clients are all running Debian Lenny. I've got it up and running and have my NIS users on the server logging into graphical desktops on a client machine.My problem is this: The users cannot access a lot of services that are native to the client because they're not members of the right groups (for example, they have no sound because they're not members of the audio group). I figured it would be easy; just add users to groups with the usermod command but the response I get is that the user in question is not present in /etc/passwd. If I understand NIS correctly I'm not supposed to add my users to /etc/passwd on the client machines.
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Jun 26, 2010
I'm trying to learn about permissions on linux webserver with apache.Some clues to the system: The server I have to play around with is Fedora based. Apache runs as apache:apache. To allow for e.g. php to write to a file the file needs to be chmod 777. 755 is not sufficiant.What I'm wondering is basically how set up permissions like they should be on e.g. a "shared web host".My main problem is that if I set a permission so that one user cannot access anothers home folder, then apache can't read from the public_html folder either.
To keep the users out I need to set chmod 700. But to let apache to read I need to have at least execute on world,so a 701 basically works, but won't let some users in.So I'm really stuck on what to do. Have been concidering adding the apache user to the frous grours
below to avoid having to add the world execute flag, but is that a bad thing? Should it be the other way around, the users in the groups below should also be in the apache group?I was aiming at having 4 groups:
1. webapp: same as dev_int, but is the only one that can go inside the webapp/live folder to e.g. do an update from the repo.
2. dev_int: can read,write and execute everything in the "web root", including the two below, but nothing outside of the web root
3. dev_ext: can read write and execute in all client folders, but cannot access anything outside of the webapp root
4. clientsBasic ftp accounts. Has a home folder with a public_html, but cannot access any other home folders
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Jan 28, 2011
I have a file server running 10.04. I have a user that belongs to 2 groups (users is the primary and IT is the secondary). I have permissions set up so that this user and other users that belong to the IT groups can read/write files and others have no permissions whatsoever. I have also set the umask to 0007 so that any files created have the effective permissions. My concern is this: since my primary group is users, is it possible for me to create files with the owner group IT for only this specific folder?
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Jun 6, 2011
I need to set up quotas so each user has a limit of 20GB (soft could be 15GB) on their homes.Is there a way to set up a default quota for all the users, or do i have to do this for the 345982374058 users in my system manually?would group quotas help? (i dont understand much of these type of quota)
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