General :: Setting Permission For Multiple Users To A Directory?
Feb 25, 2010
I'm having trouble breaking down permissions in linux. Here's the scenario. I have two users: UserA & UserB with each having to ownership and access to directories myDirA and myDirB respectively.
UserA --> /source/myDirA
UserB --> /source/myDirB
I need to set the permissions so that userA can access myDirA and myDirB. There are other users and directories but they should not be able to view outside of their own directories (which is the way it is now). I don't have groups set up for them and I'd rather not change anything else but just the permissions.
rwxr_x_r_x UserA
rwxr_x_r_x UserB
They're read/write/exec permissions are identical.
I installed proftpd on my Ubuntu 10.10 install. I also run multiple websites that I want to allow ftp access to for 2 different users. The websites are located in /home/www/. This is where the guide I was following told me to put them. I also don't have a user named www.How can I give write permission to upload, delete, and edit all the files in /home/www/ for multiple users? They can connect to the ftp server and see the file, just not change them.
Ubuntu 10.10 Server is loaded. Openssh has been loaded.
I have multiple users which need access to server via ssh.
My impression from reading about ssh is that a key needs generated for each person. Thus, each key will have a passphrase that is unique to them.
In /etc/ssh/sshd_config, the default sshd_config suggest using:
%h/.ssh/authorized_keys
My assumption is %h is a variable that will allow the current user to use the public key stored in his home directory under the .ssh folder in a file called authorized_keys. Is their a command string that automatically populates the authorized_keys file?
I am surprised that even though there are a number of hidden (e.g. .****) files located in the home folder, there is not one automatically generated as .ssh. It appears I have to create that directory myself. I am especially surprised by this since it appears the instructions for generating a key seems to load the key in the home directory instead of proceeding to create a .ssh folder to store the keys in.
It is not clear, but it appears that the public key needs to be copied or appended to the authorized_keys file, but, using the scheme above, the public key needs to be copied or appended to each users authorized_keys file instead of appending all public keys to a single authorized_keys location.
It then appears that each persons authorized_keys file needs permissions set to 600.
It also appears that if I decide to use RSA instead of DSA, I would do the same thing above but would use authorized_keys2 file instead.
Why doesn't the home folder which gets automatically set up for each user automatically get a .ssh folder generated? i.e Why does it have to be created by hand? Does it need the same permission on the .ssh folder? ie 600?
My aim is to allow many to log on via ssh simultaneously and then allow many to simultaneously vnc into their respective gnome desktops.
I am searching for a way to have multiple sessions or users on the same vnc server. I have a machine that I need to remotely access as root (for admin purposes) and as myself (as the normal user) the rest of the time. I probably will never have to remotely login at the same time as both root and myself (I am not that multitasking!)I searched the web for almost 1 hour without finding anything useful... Right now my /etc/rc.d/rc.vncservers.conf looks like:
I have a small ubuntu server setup and I would like to create a directory that can be written to by a select number of users. I have a backup directory setup and I want to enable my account as well as three others to be able to read/write to that directory. So far I haven't had any luck.
The owner of the backups folder, a directory on a separate disk mounted under /srv/storage, was owned by root and under the root group. I added the group backups and then changed the backups directory group to backups. I then used chown to change the backups directory to 775 to enable group members to write to it. I then tried to touch a file in the backups folder but no such luck. I did notice that when I run groups, my user account isn't shown as belonging to backups but is shown under the /etc/group file. I even made sure the GID of backups is in fact below 1000.
Anyone have an idea on how to create a shared directory that everyone can create, modify and delete any file? I believe my problem is related to the fact that root is the owner of the backups directory.
I am using CentOS release 5.4 ( 2.6.18-164.9.1.el5xen ) and created an HPC cluster by using NIS ( for user authentication ) NFS ( as file system ) and mpich1 as parallel compilers and utilities and TORQUE as job scheduler. I want to make sure all users should use scheduler for job submission and should not submit the job directly ( qsub job.sh ).
I want to prevent all users from executing executable files created by self , from its home directory .
Suppose if a user create an executable a.out and if he tries to execute by ./a.out it should display an error.We should also allow users to execute normal user level linux commands .How can I implement such a set up in my environment
a small lab of linux servers contains two servers. the administrator wishes to permit user settings and project files to be available when users log in on any machine descibe the server processes needed on the servers
I got myself curious on the possibility to change user's permission to any command, or at least giving other users some command line "power". It all started a few days ago, when another user here, had a problem so that the computer wasn't answering. So, after waiting a while, chose to hit the Reset button and start the computer again. Considering this situation, I thought myself that it would have been better to restart the computer, through command line, on any terminal (F1-F6). Anyway, this user is no administrator, thus wouldn't have permission to use the code...
So, is it possible to let other users to use such commands, in order to safe rebooting the system, without logging as root?
I have 3 images made by clonezilla now I want to restore 1 of them, but when I try to use clonezilla to restore, there's no option to restore image. I can see the images in home directory and file is owned by root in my home directory. I'm trying to transfer image to usb hdd.
Did I place image in wrong directory or is it permissions problem.
I was always confused about the way it says that the execute permission for a directory means "able to list it". I just don't get it.Does no exec permission mean "still able to read files from in the directory, but not able to find out what files it contains" or what?
What steps have to be followed for having customized contents of PATH environment variable whenever new users are created? I require this in order to include a special directory into PATH variable; and this has to be a default one for all the newly created users.
I want to setup a git repository, three of four users will contribute, so they need to download the code and shall be able to upload their changes to the server or update their branch with the latest modifications.So, i setup a linux machine, install git, setup the repository, then add the users in order to enable the acces throught ssh.Now my question is, What's next?, the git documentation is a little bit confusing,i.e. when i try from a dummy user account to clone the repository i got:
I'm quite new to Linux and wanted ask how I can install applications to any Linux distribution such as Debian or Red Hat so that multiple users can access and run that application. Should I be root to install applications to directories like /var, /opt
filter bandwidth for some users (about 150, from 100.100.100.1 trough 100.100.100.250) on LAN. All LAN users connect to the internet through RedHat linux server and all I could do so far is to ban some of them using iptables and commands
-A INPUT -s 100.100.100.107/32 -j DROP -A FORWARD -s 100.100.100.107/32 -j DROP -A INPUT -s 100.100.100.235/32 -j DROP -A FORWARD -s 100.100.100.235/32 -j DROP
I would like to set a download/upload limit for some of them, is that possible?
Id like to create a script to unlock multiple users rather than entering the command manually for each user.Im quite new to Linux and have not done any scripting so far. its possible to achieve what I want, and possibly provide examples or point me in the right direction? We are using RHEL 5.
I have created user, group, gave permission chmod and chown with -R option. But when i try to enter into the directory for that created the user and group, I can not enter into.
I have an interdependent collection of scripts in my ~/bin directory as well as a developed ~/.vim directory and some other libraries and such in other subdirectories. I've been versioning all of this using git, and have realized that it would be potentially very easy and useful to do development and testing of new and existing scripts, vim plugins, etc. using a cloned repo, and then pull the working code into my actual home directory with a merge.
The easiest way to do this would seem to be to just change & export $HOME, eg
cd ~/testing; git clone ~ home export HOME=~/testing/home cd ~ screen -S testing-home # start vim, write/revise plugins, edit scripts, etc. # test revisions
However since I've never tried this before I'm concerned that some programs, environment variables, etc., may end up using my actual home directory instead of the exported one. Is this a viable strategy? Are there just a few outliers that I should be careful about?
I would like to mount a (permanently) attached external USB drive so that it is writable by multiple userids. Currently HAL is mounting the drive as writable to my owner user and readable for group and others. My m/c also runs as an FTP server and I would like said FTP server to be able to write files to the external drive. Just being able to specify a gid would probably do the job for me.
I have googled HAL and UDEV and also attempted to configure usbmount to do this, all to no avail. I am running SLES 10.3. So in summary, can I & how do I either make HAL mount the drive with gid=nnn, or should I not use HAL and simply make an entry in /etc/fstab and make sure a I get the same device address for this USB drive each time I boot?
I set security context for a folder as 702 to enable other users to create and delete folder contents.But whenever other users try to create a folder,its says "Permission denied".
I was wondering what is the difference between directory execute and read permission?Also, how do I recursively remove executable permission from a dir, but just apply it to normal files?
I have a directory called data. Then I am running a script under the user id 'robot'. robot writes to the data directory and update files inside. The idea is data is open for both me and robot to update.
So I setup the permission and owner group like this
drwxrwxr-x 2 me robot-grp 4096 Jun 11 20:50 data
where both me and robot belongs to the 'robot-grp'. I change the permission and the owner group recursively like the parent directory.
I regularly upload new files into the data directory using rsync. Unfortunately, new files uploaded does not inherit the parent directory's permission as I hope. Instead it looks like this
-rw-r--r-- 1 me users 6 Jun 11 20:50 new-file.txt
When robot tries to update new-file.txt, it fails due to lack of file permission.
I'm not sure if setting umask helps. In anycase the new files does not really follow it.
$ umask -S u=rwx,g=rx,o=rx
I'm often confounded by Unix file permission. Do I even have a right plan? I'm using Debian lenny.
I'm trying to do something like thisi created a group called www and made this group the owner of the directory/var/www/htmlso i can read and write to it.of course I've add my self to this group, but it seems i can't read and write.the syntax i used was something like chown :www /var/www/html.didn't workonly when i used chown samurai:www /var/www/html i could finally could create new file.the reason i don't want to specify the user name is because I'm thinking of a scenario when i need to give permission to a large group of ppl and don't want to do it user by user.
I am installing oracle 11g on Oracle enterprise Linux 5 i applied all the steps in doc [URL] when trying to switch user to user oracle i am facing the below
[root@oel5 ~]# su - oracle su: warning: cannot change directory to /home/oracle: Permission denied -bash: /home/oracle/.bash_profile: Permission denied
There is a folder that is owned by user tomcat6: drwxr-xr-x 2 tomcat6 tomcat6 69632 2011-05-06 03:43 document. I want to allow another user (ruser) write permissions on document folder. The two users (tomcat6 and ruser) does not belong to same group. I have tried using setfacl: sudo setfacl -m u:ruser:rwx document
but this gives me setfacl: document: Operation not supported error.
How can I configure a single computer to work for multiple simultaneous users? I would like to have multiple keyboards and monitors on a single PC ... Is it possible? This set up I'm planning for CyberCafe, For cyberCafe business ROI is very slow... so was planning to have something like this....
-single CPU (Which would act as a server) -Multiple monitors, keyboards, Headphones etc....
If this works out then I would save a lot on my investments (OS cost, Hardware devices, electricity etc)
Right now i have some code to catch the inputs, using a variable "z":
Code:
Then:
Code:
I'm almost positive that the problem is in the bolded line above (for one thing, it always leaves off the initial "-e"). So basically i want a string that gives me "-e input" and concatenates as many times as necessary.
