Tagged Questions
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
34 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
63 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 ...
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.
3
votes
2answers
95 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 ...
0
votes
2answers
206 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
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 ...
1
vote
1answer
35 views
Function of owning group versus ACL group permissions
Given the fact that we can give any number of groups rwx via POSIX ACL's is there any special privileges given to the owning group? For example, we can set any number of users with ACL's but only the ...
1
vote
2answers
74 views
Cannot access any files Manjaro Linux
I cannot open any files on my Manjaro Linux laptop. I really can't remember why it happened but I restarted my computer and now I dont have read/write access to any folder or file even though I've ...
2
votes
1answer
503 views
Mount cifs Network Drive: write permissions and chown
I have access to a cifs network drive. When I mount it under my OSX machine, I can read and write from and to it.
When I mount the drive in ubuntu, using:
sudo mount -t cifs -o ...
16
votes
2answers
736 views
How do I make a file NOT modifiable?
While logged in, I can do the following:
mkdir foo
touch foo/bar
chmod 400 foo/bar
chmod 500 foo
Then I can open vim (not as root), edit bar, force a write with w!, and the file is modified!
How ...
0
votes
1answer
56 views
Setting permissions with FTP
I'm having some issues setting up permissions for FTP. Read another thread on here regarding it, but I wasn't sure if it really matched what I needed.
Essentially, right now I've got the client's FTP ...
3
votes
2answers
136 views
How do I create a hierarchy of UNIX groups as below?
I need to create a hierarchy of UNIX groups. Something like below:
A
|\
| \
B c
|\
D e
|\
f g
...where A, B and D are UNIX groups and c,e,f and g are UNIX accounts that are members of those ...
2
votes
1answer
178 views
How do I mount an NTFS partition in /etc/fstab and prevent files/directories from receiving exec permissions when they're created?
I have an NTFS partition that I want to mount using /etc/fstab. I don't want any files to have executable permissions on this drive, so I wrote the following rule:
/dev/sda2 /media/sharedfolder ntfs ...
1
vote
1answer
70 views
Having owner access on files upon mounted NFS directory
I have a Linux RedHat server and a Solaris 10 client. I have mounted a directory which locates on the RedHat server, in the Solaris system with RW(read/write) option. I already have some directories ...
0
votes
1answer
29 views
A user in a group does not have group access?
I have a fresh install of ubuntu server 12.10. I have created a group called www-dev and a user called dab. the user is in the group and i can verify that by
members www-dev which returns dab.
I ...
0
votes
0answers
172 views
Linux Permissions vsftpd
I have mybb installed and running in /var/www/forums.
I have two users part of the www group, logan and www-data.
I have the recursive permissions of forums directory set to:
chmod -R 755 forums
...
3
votes
3answers
104 views
Is it possible to set per-user permissions in Linux?
Is this possible?
It seems that I have more options to set permissions in Windows than Linux.
Let's say I want to give a user full access to a top-level directory but limit their access to certain ...
4
votes
2answers
106 views
Is there a Linux file permission that allows the app to read a file but not a user?
I need /var/www/config/config.json to be read by my app but not by users calling myapp.com/config/config.json. How would I do that?
2
votes
1answer
63 views
why cannot rename subdir when parent dir owner is not the same user [duplicate]
Possible Duplicate:
Can’t rename a directory that I own
I am trying to understand why when a dir X is owned by user A cannot rename it when parent dir of X is owned by user B. Can anyone ...
19
votes
2answers
609 views
How do I remove a file with no permissions?
A hacker has dropped a file in my tmp dir that is causing issues. Nothing malicious except creating GB's of error_log entries because their script is failing. However, the file they are using to ...
3
votes
3answers
558 views
Recovering from “chmod -R 777 /” in Ubuntu [duplicate]
Possible Duplicate:
Wrongly set chmod / 777. Problems?
I am using Ubuntu for development purposes.
As I work on the database side, there are a lot of things which require file permissions ...
1
vote
1answer
89 views
Cannot execute files on another partition
On my system I have three partitions: one is shared between W7 and Linux Mint (NTFS), and the other two are OS-specific.
In my home directory I have created a symbolic link to another directory on ...
1
vote
1answer
84 views
What does it mean if a directory has only x (executable) permission for certain user/group?
I stumbled across the directory /etc/ssl/private on Ubuntu (12.04), it has following permission:
drwx--x--- 2 root ssl-cert 4096 7月 8 2012 private/
I wonder what does this mean for group ...
2
votes
1answer
47 views
Standard way to expose device file to userland applications running on an unprivileged user account?
I just finished the first version of a Linux kernel module I've written in C. The module creates a device file (/dev/wn0) that controls a USB device with three LED lights. For example, running as ...
4
votes
2answers
232 views
Restrict file access to append only
I have a directory with log files and I'm putting
logs from script launched by users into them. Logging with syslog doesn't seem
possible in this case. (non-daemon rsync)
I want the users to have ...
2
votes
1answer
334 views
how to allow different users of same group access/edit files/directories created a user of same group
here is my example,
here I am logged in as root
created a group using groupadd command called as devel.
created two users dev1 and dev2 using useradd command.
useradd -g devel dev1
useradd -g devel ...
2
votes
0answers
162 views
How do I let an SDL app (not running as root) use the console
I want to use an SDL-based program to display graphics on the console, without having to log on from the console, and without running the program as root. For example, I want to be able to run it via ...
1
vote
1answer
137 views
Can I export an NFS share with faked root privileges
I'm writing software for an embedded linux system and I'm using an NFS share as root directory. The root filesystem resides in /srv/nfs/rootfs, and it is exported using the following /etc/exports:
...
0
votes
4answers
272 views
umask is not working for directories
I have an odd problem with umask.
My current setting is:
$ umask
0022
$ umask -S
u=rwx,g=rx,o=rx
This only works for files though and not directories:
$ touch abc
$ ll abc
0 -rw-rw-rw- 1 user1 ...
1
vote
1answer
113 views
Don't have write permission in partition
In my PC I have installs Windows7 and then Ubuntu as OSes.
When I try to access other partitions ( E: and F: which I'm using from Winsows7 OS) it get mount without any issue and can read and modify ...
1
vote
2answers
119 views
Run program with additional supplementary group
I am looking for something like sudo (or something that can be run from sudo) that allows me to run a program with my uid and primary gid, but with an additional supplementary group.
1
vote
1answer
119 views
Accidentally set /lib permissions to 644
Long story short, I've got an Ubuntu server box that was recently compromised (I believe through a known exploit of an older version of Tomcat, which has already been updated). Part of the exploit ...
18
votes
4answers
830 views
Is there a reason why 'owner' permissions exist? Aren't group permissions enough?
I think I rather understand how file permissions work in linux. However, I don't really understand why they are split into three levels and not into two.
I'd like the following issues answered:
Is ...
0
votes
3answers
83 views
File Privileges
There is one user Lets call him B and he needs access Just to Read the File MEANS READ ACCESS and that file is own by another user A .
How can I grant access to user A's file to User B.
1
vote
0answers
71 views
Running Tomcat MySQL and Apache under a group
I am trying to set up a web server at home using Ubuntu, but prefer my bash scripts to be platform agnostic hence why I am asking here. I also dislike apt-get everything. I am trying to create a ...
2
votes
1answer
776 views
Executing a script from Nagios event handler fails to run
I have Nagios running on a webserver. For this one Nagios service check in particular, if it fails, it will run a script. This script is triggered via Nagios event handlers.
Nagios event handler ...
1
vote
0answers
137 views
Samba: system group mapping
I have w2008R2 PDC and Linux server with samba and winbind. Now I'd like to add some domain users to Unix adm group in AD.
Let's say I have adm group defined in AD, and every user from this group ...
1
vote
2answers
227 views
SMB Mount To Windows Server Appears to Lock up. Any Ideas?
We are running CentOS 6.3 with all the latest updates. (Attempt to resolve this issue)
The Server I am trying to connect to is a Windows Server 2008 R2 box. Though this applies to our old SBS'03 Box ...
1
vote
3answers
2k views
Apache 403 Forbidden on sub folders?
I can view all files in the root directory (/var/www) but as soon as i enter a sub directory (eg /var/www/test) i get a 403 Forbidden error. I'm running Ubuntu 12.04.01.
Have tried searching for ...
5
votes
1answer
107 views
Does the suid bit have any meaning for device files?
Does the suid bit have any special meaning for device files in Linux ?
1
vote
3answers
710 views
Root permission - username ALL=(ALL) ALL does not work
I'm a beginner.
I'm trying to give my user root permissions, so I edited the sudoers file like this:
black ALL=(ALL) ALL
"black" is my username.
But I still don't have root permissions, and ...
4
votes
6answers
295 views
How to setup password-less ssh with RSA keys
I am trying to setup a password-less SSH configuration between two machines and am having trouble. There are a ton of howtos out there that I have followed and have had no success. Here are ...
3
votes
1answer
491 views
Group within group file permissions
I tried finding this on here, but couldn't so sorry if it's a duplicate.
Say I have 2 groups and a user: group1, group2, user1
with the following structure: group1 is a member of group 2, user1 is a ...
4
votes
3answers
305 views
Clarify File Permissions
I've been searching for information about file/directory permissions, and I keep finding the same basic principles. What I can't find anywhere is a rationale for determining what permissions to give ...
3
votes
1answer
345 views
How to configure permissions to allow apache to securely have access to a file in a shared environment?
This is a follow up question from my previous, but I felt it might be more Linux based.
http://serverfault.com/questions/414207/how-to-set-linux-permissions-to-allow-apache-to-have-access-to-a-file
...
1
vote
1answer
110 views
How do I keep KDE from asking new users for a password when I use /etc/skel to set up their enviroment?
I made this nice custom KDE setup on Arch Linux with customised settings like desktop background, panel settings, kwin settings, etc. I heard that if you copy all the hidden files from your ...
2
votes
1answer
386 views
Permissions corrupted?
A few weeks ago, I installed Linux Mint on a USB flash drive. I used it to copy the contents of my HFS+ external hard drive to my Windows drive on my desktop. Then, I formatted the external drive to ...
2
votes
1answer
273 views
How do I set permissions for a directory so that files and directories created under it maintain group write permissions? [duplicate]
Possible Duplicate:
Make all new files in a directory accessible to a group
I have a directory in which collaborative files / directories are stored. Say directory abc is owned by root and ...
10
votes
1answer
4k views
How to skip “permission denied” errors when running find in Linux? [duplicate]
Possible Duplicate:
How do I remove “permission denied” printout statements from the find program?
When I run this command in Linux (SuSE):
find / -name ant
I get many error ...
