Slackware :: User Permissions/groups To Access USB Scanner?
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.
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.
I am setting up a samba server to operate in a windows AD domain. I want to set permissions for multiple groups to have different levels of access to one group of files, and it looks to me like unix permissions will not do that? I always hear about how robust linux is, and it seems to me that their file permissions model is WEAK compared to microsoft's?
So I just recently installed fresh 13.37 over my 13.1 install. Went multilib, and added myself to the usergroups I thought I might need. But truth is, I don't know what half of these are and I just picked the ones that sounded right. I'm the only user on this computer, although I might possibly maybe add another someone if I have to for some reason.
For my user account, I added myself to: Code: bin disk mem kmem wheel floppy mail news uucp man dialout audio video cdrom games mysql sshd gdm shadow ftp messagebus haldaemon plugdev power netdev scanner users console kismet vboxusers
Basically, I want my own account to be able to do everything I normally do without too much restriction (use the disc drive, mount hard drives, browse the web, read/send email via Thunderbird, download stuff, etc), but leaving the important stuff to root so that if someone else happens to use the computer under my account, they can't do any damage. Did I select the right groups for this? Should I add or remove any? And what groups should a user have if I just want them able to browse the web, download files, use their /home, run non-root apps, and nothing else?
I've got a USB Epson Perfection1200 (usb-id: 04b8:0104) connected to my Fedora 13 x86_64 system. The scanner works fine for me, the console user. If someone logs in to the system via "ssh -X ..." and starts "xsane", xsane reports that no scanner is available.
Googling turns up countless recommendations, mostly identical, which pretty much say:
1. find usb device (lsusb) 2. find bus and dev IDs 3. chmod 666 /dev/bus/usb/BUSID/DEVID
this is a best a miserable hack. I would like to know how to adapt the permissions that hald uses when a usb device is connected. Does someone understand this and can explain it?
I'm a new user for oracle,tried to install oracle 10g on redhat linux 5 but gettinh the same error message. response/ runInstaller [oracle2@localhost database_10201]$ sh runInstaller_runInstaller: line 54: /tmp/database_10201/install/.oui: Permission denied_
how to give full set of permisions to an user in linux to access a folder?
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...
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?
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?
What is the difference between creating a "regular" user and creating a "system" user on Linux?
For example:
Code:
adduser john
Code:
adduser --system john
Similarly it seems there are normal groups and system groups. Doing an internet search and reading man pages does not give much information on the whole concept of system and regular user/group.
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.
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.
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.
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?):
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?
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
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?
This just started happening when I go to use my scanner with xsane: Failed to open device "epkowa:interpreter:001:003": Access to resource has been denied The work around is # chmod 2777 /dev/bus/usb/001/003
How do I tell CentOS I want my users to automatically be able to read my scanner when I boot up or when I insert the scanners USB cord after boot up?
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:
I accidentally changed my user permission while setting up a new user account and am now unable to access the "system" on the panel to change things back. I've just spent hours setting everything up and downloading and hope that I don't have to go through all of that again.
I was able to get the printer up and running by downloading the printer driver for debian linux (3.1) from the Canon site without any problems.
Unfortunately I am not having the same luck with the scanner.
I tried downloading ScanGear MP for Linux (deb) (1.3) from the same Canon site but have not yet been able to get the XSane Image Scanner to recognize this scanner driver for my Canon.
just getting startedin linux <fedora9> and haveseveral questions. first what bookwould be best to start the learning process? have looked at fedora 9 and enterprise and the newest fedora 10 with enterprise and these seem to be aimed at networking setups which I do not have.also in adding users and groups which I have done I think successfully however when I use the newgrp command and try to access a file I have saved under a group with two members the file does not show in the ls command.
users are jevans in group programmers cevans in group programmers in creating the file I didthe newgrp programmers command and created the filein the cevans spotand changed to jevans and negrp programmers and the filedoes not show.so what do I do here, or is my understaning of this incorrect?
I've just installed Fedora 14 x64 and had a few problems. I have a GT9800 video card and after installation x wouldn't start untill I added xdriver-vesa nomodeset to the kernel line. Anyway I've just got it to the point where it will actually boot but wasn't asked to create a user - the live cd installation only asked for root user password. So I used useradd to create a user and I'm finally at the desktop. My question now before I go about installing the nvidia driver is can someone confirm which groups my user should belong to. I haven't used Fedora since FC3 so I can't remember.
I created a user and I want the particular user in multiple groups. How Should I and after creating the user,If I want to delete that user from a particular group.
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.
I've created a set of users using the newusers command. Unfortunatelly ive messed up and added all users to the 1000 group as primary group instead of giving the group argument as null what would add them to a new group. To make things clear:
I need to create the missing groups. A simple fix could be do a for loop creating a group with the name of each user in my file and then adding the users to it. Are there any dangers of doing it? What impact could this change have? Are there any safer ways?
A combination of the following commands:
Quote:
Add users to a group with the gpasswd command:
# gpasswd -a [user] [group]
To delete existing groups:
# groupdel [group]
To remove users from a group:
# gpasswd -d [user] [group]
If the user is currently logged in, he/she must log out and in again for the change to have effect.
Quote:
for i in (names) do groupadd $i gpasswd -a $i $i
Assuming I've created all users in group 1000 I could remove them from it with
I am in need of a rather complicated permissions scheme for particular directory. I have a directory /data I want the group developers to have read and execute access to this directory. Then, I want the group research to have read, execute, and WRITE permission for this directory. Now, I have a second directory /code which developers and research have full access to. And I have a third group, operations I want operations to be able to read /data but not be able to read /code Is this permissions scheme possible in linux?
i am considered a power user in windows but in ubuntu ima total noob. in the users settings, manage groups, i see like 100 groups. and thats just annoys me, all i want is to be the admin and everything to work its not rocket science is that so hard for linux? I DO NOT WANT TO BELONG TO A FREAKING GROUP I JUST WANT 1 SIMPLE ADMIN ACCOUNT. someone please explain everything related to this subject. i mean i see stupid groups like 'audio' and 'couchdb'. WTFi dont want these useless groups to exist on my system
