Permissions are the unix way of controlling access to resources such as files, directories and devices and may be specified for an owner, group, or all users.
2
votes
1answer
13 views
What is a process GID and what purpose does it serve?
Reading mod_wsgi's documentation I found you can choose which group to run the worker processes as.
I can understand group ownership of files and how only a user who belongs to that group can achieve ...
-1
votes
1answer
30 views
disabling root permissions [closed]
From Linux From Scratch build a minimal system for running my application. but struck on disabling root permission.
Need my minimal lfs as ubuntu.
when ubuntu boots login-screen displays when we ...
1
vote
4answers
51 views
What type of permissions should a user's home directory and files have?
I'm working with a fresh install of Ubuntu 12.04 and I've just added a new user:
useradd -m testuser
I thought that the -m flag to create a home directory for users was pretty standard, but now ...
0
votes
0answers
26 views
Xfce: Upgrade from Squeeze to Wheezy broke xfce's user policies
While using Debian squeeze, I was able to allow a user shutdown in xfce by adding users to the powerdev group (see here: xfce: Allow shutdown for non-root users).
Now, I upgraded my system to Debian ...
1
vote
3answers
70 views
Setting file permissions in bash script
This script is not working the way I thought it would .I though it would find all the scripts that have every one rwx permissions changed to the permissions of xx5
#!/bin/bash
# the / makes find ...
1
vote
1answer
30 views
Give default write permission to group to any newly created files and folders
Let's say that we have 2 users: a and b, that are both part of group general.
I would like that any file or folder that A creates, would have write permission to the group GENERAL.
How can I do it?
...
1
vote
0answers
26 views
vsftpd virtual user read permissions
I have a vsftp server that services a read-only public space by anonymous login. It works fine. I need to add a few specific users that will authenticate by username/password and they will have ...
2
votes
2answers
53 views
Can I allow users to chmod a file not owned by them?
I would like to allow users to chmod a file that is owned by root or some user that is not themselves. I have chmod'ed the file to 777 and I get "operation not permitted". I have added the user to the ...
1
vote
2answers
33 views
Is there any way for group “owners” to have full rights of a file or directory owner?
Is it possible with the normal Unix permissions system to enable group members to have the right to change a file's permissions?
In other words, suppose we have a file awesome.rb which is owned by ...
3
votes
1answer
62 views
ACL, ls, “permission denied” and a lot of questionmarks
I have two users, Alice and Bob. Bob should be allowed to list, ls, Alice's home directory. Alice also has a file in her home directory that Bob should also be allowed to read.
I run these commands ...
0
votes
2answers
51 views
why am I able to delete file which belongs to `root` under a non-root user? [duplicate]
I create a file under my user esolve
and then su root
and use chown to change its user to root
then I returned to user esolve
I notice I can still delete the file with rm
why?
2
votes
1answer
47 views
how to keep file owner same for newly created files
This question is regarding samba file access.
I have created a folder A, and under folder A created two folders B and C. And also created three users A, B and C.
User A has access to all three ...
2
votes
1answer
35 views
Adding a user to a group by default
I have a group that all users on the system share. The group name is common and it is to allow for a universal fileshare for everyone on the machine. How would I make it so that all new users are ...
2
votes
2answers
42 views
how to initialize `/etc/group`?
After editing /etc/group, How this update starts functioning without restarting the system in Unix?
Is there any command we need to run?
2
votes
2answers
64 views
files in /proc/$PID (e.g. ssh-agent, Chrome) are not owned by user but by root
I am just answering another question here :-) and thus had a look – wanted to have a look at /proc/$PID/fd of ssh-agent in order to find out which socket it uses. But I can't. I am quite surprised to ...
1
vote
1answer
58 views
LAMP Server setup for personal development
I am setting up a LAMP server in VirtualBox for personal development. This will be an Ubuntu Server 12.04 install, and I will be using Virtual Hosts for Drupal, Yii, and other small PHP apps. Ideally ...
0
votes
0answers
32 views
Why can't users besides root create files in a samba share?
I am sharing a directory on one Red Hat machine via samba, and mounting it on another Red Hat machine with the following command:
mount -t cifs -o guest <remotepath> <localpath>
The ...
1
vote
0answers
52 views
samba 4 force user
I have a directory with files owned by Linux user quux. I want to give access to it over CIFS using Samba 4 for two persons so they have different usernames foo and bar and passwords but access the ...
0
votes
1answer
49 views
LINUX: Permissions for files: Identify if it is a file or directory, and its access allowed to the world, user, and group [duplicate]
I am having trouble understanding permissions for directories and files in LINUX.
By examining permissions for each of the following files, identify if it is a file or directory, and describe the ...
1
vote
2answers
54 views
using root to mkdir in another users home directory
having a bit of a difficult time trying to create a folder under another user's /home/devuser1/pubic_html folder. I'm trying to avoid using sudo and looking for an alternative. The permissions on the ...
2
votes
2answers
88 views
Unable to change permissions of file system root
When I write ls -la the output is :
tusharmakkar08-Satellite-C660 tusharmakkar08 # ls -la
total 88
drwxr-x---+ 10 root root 4096 Apr 18 19:43 .
drwxr-xr-x 4 root root 4096 Mar 18 17:35 ..
...
1
vote
3answers
76 views
`cp` permission denied when copy a file owned by `root`
I have a folder udp_folder2
d------r-T 41 root root 4096 Apr 26 21:17 udp_folder2
when I'm with user other than root, I can't cp -r it into a new folder
it says: Permission denied
...
1
vote
1answer
51 views
chmod allowing write when I am not setting it
I've got a perl script which systematically changes permissions. The first thing the script does is remove all permissions. It does this by calling chmod(from perl). I did this as I found the set guid ...
2
votes
2answers
80 views
Ubuntu Bash - Changing permissions to user files for automating Apache VirtualHost creation
Moved here from AskUbuntu
I currently have a small Ubuntu Server 12.04 machine (test environment) with about 3 non-root users created. Each user has their own public_html directory under their ...
1
vote
1answer
45 views
Properly Setting Red Hat Daemon Umask
I've been trying to figure out the proper location to set daemon umasks in RedHat 5. All my searches lead to setting it in /etc/init.d/functions or /etc/sysconfig/init.
What are the pros/cons of ...
2
votes
2answers
50 views
Permissions for FTP directory: Inherit directory owner
I am making multiple folders for users (userA/, userB/, etc.) where anyone can create/read a file/folder in any directory (userC can make fileX inside userA/). However, only the directory's owner can ...
3
votes
2answers
66 views
How can I backup a directory to NTFS while preserving Unix file attributes?
I want to make a backup of my home directory to an NTFS partition (an unfortunate limitation). However, when I last tried using just cp, the attributes (owner, etc) went away. How can I make a backup ...
0
votes
1answer
97 views
External HD: “Permission Denied” on file write
I have a 3TB external hard drive that I plan to use for backups. I originally tried formatting with cfdisk, until I learned that only GPT supports 2TB+ partitions.
So I converted the drive to GPT ...
3
votes
2answers
52 views
Default directory permissions over NFS
I have two servers, client and server in fairly obvious roles: server hosts the NFS share and client has it mounted. There is a shared group among several users on client called shared which also ...
0
votes
2answers
68 views
Add new user with permissions same as existing user
How to create a new user with permission exactly same as an existing user in linux.
2
votes
1answer
92 views
“rm -rf Filename.iso ” Permission denied
Hi I am facing an issue while deleting an .iso file from Linux x86_64 GNU/Linux.
Here are the permissions for the file:
# ls -lrt
-rwxrwxr-x 1 dev devgrp 2687934464 Apr 12 14:13 ...
0
votes
0answers
57 views
Samba guest access
I have a home server with samba. with windows i can access and make folder(always with permission 777) like guest( no password ) without problem. But with linux, when i mkdir i can not modify this ...
3
votes
2answers
96 views
How to grant non-root user access to device files
I have device file that appears in /dev when a specific board is plugged in. The read and write operations to it work just fine, but in order to open the device file the program needs to be executed ...
1
vote
0answers
111 views
How to mount samba rw because everything fails
I'm trying to mount windows share on my laptop and everything mounts ok but somehow I get permission denied when I try to create new file inside mounted folder. I tried noperm, uid, gid, noacl etc. ...
2
votes
1answer
122 views
rsync: failed to set permissions on “/path/to/file.txt”: Operation not permitted (1)
I encountered the error when attempting to transfer source files from a remote Linux web server to a local HP dt1000i Desktop Hard Drive connected to an Ubuntu 12.10 box via USB.
A Samba share is ...
3
votes
2answers
82 views
Using setfacl to allow group members to write to any file in a directory
I'd like to use setfacl so that anyone in group 'app' can edit any file contained within /usr/local/users/app regardless of what the traditional UNIX permissions say. I have two users john and ben. I ...
15
votes
3answers
531 views
What are common rights for /tmp ? I unintentionnally set it all public recursively
I have abused sudo.
I have created a really really short life temporary directory that I wanted to share between some users for a few hours... and I named this directory /some/path/tmp
Unfortunately ...
1
vote
0answers
44 views
write only permissions on samba
I am busy setting up a file server in our church office (using samba on a debian machine).
I would like to impliment a dropbox-like folder for each user, where othere users may deposit files.
...
1
vote
7answers
184 views
Convert ls -l output format to chmod format
Say I have the following output from ls -l:
drwxr-xr-x 2 root root 4096 Apr 7 17:21 foo
How can I automatically convert this to the format used by chmod?
For example:
$ echo drwxr-xr-x | ...
0
votes
2answers
211 views
How do I make PHP securely load files from the server root home folder on CentOS?
So I built what I thought would be this awesome reporting page in PHP that loads data from some CSV text files and creates nice Google charts and tables for our clients. I then thought it would be ...
1
vote
0answers
80 views
Apache created files and its permissions for CentOS 6.x
In short, I have an authenticated HTTP-POST that:
posts a jpg image (created as 666 apache:www) into /directory1 (777 ftpuser:www)
creates /directory2 (created as 666 apache:www) in a 777 ...
3
votes
2answers
40 views
A service is failing to start on permissions denied--which files is it failing on?
I'm attempting to start a service that our company created. In one particular environment, it's failing to start on three "permission denied" errors. I'm not sure which files it is failing on, so I ...
1
vote
2answers
49 views
Files created by 'make' aren't getting executable permissions by default
I'm trying to build a project, and when I use the command make, I get the following errors:
/bin/sh: line 4: .deps/ipset_bitmap_ipmac.Tpo: Permission denied
make[2]: *** [ipset_bitmap_ipmac.lo] Error ...
3
votes
1answer
25 views
Copy file permissions from user to group
I have a folder with some files, which each have different permissions. Some are read-only, some are read/write, some are read/execute.
How can I copy the permissions from user to group, so that for ...
1
vote
1answer
36 views
Able to delete file without permission [duplicate]
I've been experimenting with file permissions and ownership lately, and I tried this:
touch a
sudo chown root:root a
sudo chmod 000 a
I can't read, write, or execute the file, but I can still ...
2
votes
1answer
51 views
View temporary files which exist for milliseconds
I'm trying to debug a program which is not logging the information I need. Fortunately, it does write temporary files which should contain the information. These files are written to a directory like: ...
2
votes
1answer
49 views
File owner must belong to file group?
I have a rather simplistic understanding of file permissions on *nix systems. I understand that there is a file owner and file group, but is there a hard and fast rule on whether the said file owner ...
0
votes
0answers
50 views
Why can't the sudo user overwrite files by SFTP?
What permission is needed to let user (sudo) overwrite the files on my VPS over SFTP?
0
votes
0answers
30 views
user permission with ldap server
I am trying to setup a ldap server which authenticate each user with its respected permissions i.e Full or read-only access to each server.
We don't want to create each user manually on each server.
...
1
vote
3answers
86 views
Taking away a User's Read/Write/Execute Permission
So I have a user that is able to go in /etc and read files like httpd.conf.
I would like to deny that user access to any critical locations such as /etc, /var and so on.
What would be the best way ...
