3
votes
0answers
8 views

Migrate an unprivileged LXC container between users

I have an Ubuntu 14.04 server installation which acts as an LXC host. It has two users: user1 and user2. user1 owns an unprivileged LXC container, which uses a directory (inside ...
0
votes
1answer
26 views

Samba share open for all to all

thanks for viewing at this question. I have a CentOS 6.5 server with a share that is and should be accessable for and from everyone. All content placed on that share should be accessable by everyone. ...
0
votes
2answers
64 views

New user can't access their home

So I'm adding a new user on a machine to give a family member some remote storage. After setting up their login and home directory. Here's the stat File: `/home/heather' Size: 4096 Blocks: ...
0
votes
1answer
14 views

Unzip (Info-ZIP) Permissions

Is there a way to invoke unzip (from Info-ZIP) on a Linux system without having it restore the permissions stored in the zip file? The zip files I'm restoring are enormous, so going back over the ...
0
votes
2answers
25 views

How to give rights to user on server to use programs

I installed a bunch of applications via SSH on a Debian Wheezy server. Now I want to give one extra developer rights to use one folder. I added her to a new group "myappdevs" and gave the group ...
1
vote
1answer
42 views

How can I write to my Samba share?

There are a million versions of this exact question out in google land but I've been unable to solve my problem (sorry). I have created a Samba share on Ubuntu 14.04 (actually xbmcbuntu) that I can ...
1
vote
1answer
21 views

Two users, full access to same folder

I have a laptop running Arch Linux, and an owncloud-client. I have an owncloud server on my local network. When outside of my local network, I must use a dyn dns URL to get to my server. When on the ...
1
vote
1answer
25 views

How does ACL calculate the effective permissions on a file?

I ran the following command to give the wheel group rwx permissions on new files and subdirectories created: [belmin@server1]$ ls -la total 24 drwxr-sr-x+ 2 guards guards 4096 Aug 27 15:30 . ...
2
votes
2answers
109 views

How to remount as read-write a specific mount of device?

How to remount as read-write a specific mount of device? (one folder) The file is "Read-only file system", rw-r-r, so it not allow to change permissions. I need to replace that file, then change ...
1
vote
2answers
64 views

Unable to get rid of root user and privileges

I am told that the most basic security to set up in Linux is to change the superuser name from root to something obscure so I run these steps to add new user $ /usr/sbin/adduser new_username $ ...
2
votes
1answer
75 views

Changing file permissions on an HFS+ filesystem

I ran the command fdisk -l to find out what my external drive is formatted to, I found out it's uses GPT partitions and the filesystem is HFS+. When I try and create a new folder on the external ...
2
votes
1answer
56 views

What to do when you removed execute permission from some system binaries or libraries?

It seems I removed executability from system binaries, resulting in loads of Permission denied. Do I have to force reboot into host's rescue mode or is there something else I can do while I'm still ...
1
vote
1answer
59 views

How can I tell why I have permissions to read a file? [closed]

Here's what I just noticed on my CentOS SSH account: stat output $ stat /dev/kvm File: `/dev/kvm' Size: 0 Blocks: 0 IO Block: 4096 character special file Device: ...
4
votes
1answer
221 views

What permissions do I need to write to a card reader?

I have a card reader attached on /dev/sdb. What I do is giving all permissions to owner, group and the rest of the world, using: sudo chmod 777 /dev/sdb Can I just use another combination, ...
4
votes
2answers
73 views

777'd some files. How do I repair SSH?

So I'm messing around on a test server and accidentally ran the following (which resulting in SSH breaking): # chmod -R 777 /var Because it's a test server, I'd rather not re-install right now, I ...
1
vote
0answers
26 views

Traffic Control user permission

My users need to emulate packet loss on RTP video streams to achieve visual effects. We are in a artistic environment and don't worry about security. The application works only as super user. I ...
1
vote
0answers
135 views

checking sendmail status as NON root user

I am in the process of converting to CentOS 6.5 from 5.5 and need a way to check if sendmail is on or not. For reasons I don't want to go through, I need to be able to check if sendmail is ON as a ...
2
votes
1answer
85 views

How to set umask so that directories to be `r-x` and files to be `---`

I want to set the default permissions for newly created directories to have r-x for others and those of newly created files (non-directory files) to have ---. If I set the umask to 2, directory ...
1
vote
2answers
104 views

In Linux, why do you need to be root to write to /proc/sysrq-trigger?

WARNING: THE NEXT KEY COMBINATION WILL CRASH YOUR COMPUTER Ok, I get that this is an administrative tool and all, but I realized that any user can do ALT + SysRq + C. This link explains what I'm ...
0
votes
3answers
463 views

Script to recursively check permissions and owners of a directory and write shell script to recreate them

I'm trying to write a shell script to preserve and rewrite all permissions/groups in a large directory with several subdirectories in the event they get changed or are not properly created or if ...
1
vote
2answers
57 views

Command to know privileges of a user group

If I run cat /etc/group command or groups username I am able to know the list of groups as group of a particular user. Is there any command through which I could know which type of privileges a ...
0
votes
2answers
66 views

Apache folder permission error

I have a folder name public that I set up Apache to serve files out of, for some reason I was getting a 403 with the error message: You don't have permission to access / on this server. My ...
1
vote
0answers
44 views

Disable commands for users [duplicate]

I have users that login automatically via ssh to a script I defined instead of a shell. The script basically launches a program which has a shell-escape in it which would allow the user to execute ...
2
votes
2answers
49 views

Why does the root user have control over mysql directories but not show as a member of the mysql group?

Sorry if this is a duplicate. It seems somewhat similar to the question here but I think what I'm asking is a little different. I've got a CentOS 5.x box running with mysql on it. The root linux ...
2
votes
1answer
317 views

setfacl default --x on directories and r— on files for user

Having the following directory structure [sr@server directory]$ tree . ├── folder1 │   ├── fileA │   └── fileB └── folder2 └── fileC 2 directories, 3 files I want to set a default facl on ...
2
votes
2answers
803 views

Allow NonRoot User to Mount a Particular NTFS External Hard Drive

I have a 4TB external hard drive connected to an Linux server. The fstab permissions on this drive are set so that only one particular non-root user has access to it: ...
-1
votes
2answers
115 views

ls -ld list files inside a folder which is having only execute permission

In Linux, I gave only execute permission to a directory named test. after switching to the directory test, when I run ls -ld it was showing some hidden files. Please explain this.
0
votes
2answers
33 views

How to create a directory which will have access to the user who is installing a package?

I am packaging one of my projects on Debian. The project expects a directory to be created at XDG_DATA_HOME or ~/.local/share/ where the data files will be kept. Now I am trying to create and feed the ...
4
votes
1answer
123 views

How to set a directory's permissions for group read/execute access

I am running Arch and have just install XAMPP. I have change changed my document root to /srv which is a separate EXT4 partition. I have set the Apache HTTP server to use a group called "http". I have ...
2
votes
1answer
68 views

chmod 600 fails silently

Here is what happens: $ chmod 600 foobar.txt $ ls -l total 1 -rwx------ 0 sampablokuper sampablokuper 13 Feb 19 21:00 foobar.txt Why is the last line not reading as follows? -rw------- 0 ...
3
votes
1answer
1k views

File inheriting permission of directory it is copied in?

I have files created into my home directory with only user read permission (r-- --- ---). I want to copy this file to another directory /etc/test/ which has the folder permission of 744 (rwx r-- r--). ...
2
votes
2answers
34 views

Specialized access control for directories in RedHat

I have a requirement where I want to change permissions for a directory so that the directory owner (user/group) would be able to create files inside the directory and modify them, but won't be able ...
0
votes
0answers
30 views

Correct permissions for a .desktop file

Some file managers do not allow the execution of a .desktop file if it doesn't have the executable bit set, however in most cases I see such files as just 0644, without the executable bit. When ...
4
votes
3answers
4k views

“echo 3 > /proc/sys/vm/drop_caches” - Permission denied as root

I am currently having some issues with the cache. It is a little too much right now so I wanted to clear it. I googled and found this little command: sync && echo 3 > ...
0
votes
1answer
546 views

root permission denied on /proc/1/exe

I just performed a fresh ubuntu install and i am seeing the following in lsof: userA@az1:~$ lsof COMMAND PID TID USER FD TYPE DEVICE SIZE/OFF NODE NAME init 1 ...
0
votes
3answers
46 views

Is it possible to create a file with the privileges of other users?

I am a user of the root account on the server named A. And I also own the accounts of user1 and user2. When I create a file or directory in the account of user1, I want the owner of the file to be ...
2
votes
2answers
70 views

Why can users delete each others files in this case

I have two users : bob and sally, who resepctively own two files : bob100 and sally100: > ls -altrh /path/to/dir : -rw-r--r--. 1 bob test 0 Jan 7 12:59 bob100 -rw-r--r--. 1 sally test 0 ...
2
votes
1answer
164 views

Allow file manipulation but block folder/subfolder manipulation?

I have an Ubuntu file server (samba) sharing a folder structure with a Windows 7 computer classroom. All users use the same user/pass to access the folders and have read/write permissions. I would ...
1
vote
1answer
816 views

Linux empty buffer cache command permission denied

I'm using the following commands to flush cache: # sync; echo 3 > /proc/sys/vm/drop_caches # sync; echo 2 > /proc/sys/vm/drop_caches # sync; echo 1 > /proc/sys/vm/drop_caches When I use ...
0
votes
1answer
116 views

SFTP Modification time Permission denied when touching/updating files

The file is apache:apache 660 and username is jdoe and he belongs to groups jdoe and apache. He SFTPs into the server with WinSCP but when he goes to perform an edit which includes a set modtime ...
2
votes
0answers
71 views

NFS mount edits on local NFS-exported filesystem change permissions on the remote NFS mount

I believe there is a noperm or something to that effect option in NFS, but how do I make sure that if server A is exporting /opt/nfs and it is mounted as an NFS mount on server b /export/serverA that ...
1
vote
2answers
196 views

How to modify the permission of jar file exactly same as other machine jar file? [duplicate]

I have two machines, In my machineA I have a jar file with these permissions - -rwxr-xr-x 1 cronus app 16758150 2013-03-19 13:35 exhibitor-1.5.1-jar-with-dependencies.jar In my another machineB, I ...
0
votes
3answers
294 views

noexec on /tmp and /var/tmp directory

Our client servers are running old version of jboss (Jboss 4.0) which has lots of known vulnerabilities. Result is that the server is hacked and we are seeing some unknown executables running from ...
0
votes
1answer
100 views

How to give permissions to other user after logging as root in Linux?

I am a Linux newbie and I have a very basic question. I have one machine which is machineA and I have a root access to that machine. Now I need to create these below two directories and give ...
2
votes
3answers
176 views

How do I change owner/permissions of auto mount on an embedded linaro based linux

I have an ARM based embedded system that when it auto mounts a USB drive it mounts it: drwx------ 6 linaro linaro 2048 Jan 1 1970 PENDRIVE I need to change the permissions and possibly thew owner ...
8
votes
1answer
994 views

What does a dot after the file permission bits mean?

I performed an ls -la on directory on my CentOS 6.4 server here and the permissions for a given file came out as: -rwxr-xr-x. I understand what -rwxr-xr-x means, what I don't understand is the . ...
2
votes
1answer
94 views

Process overwrite access restriction

I want to run a program so that it can only create new files and not overwrite existing ones. Does something like this exist? $ fsaccess --can read,write --not overwrite --command bash -c 'echo ...
0
votes
0answers
515 views

FreeRadius/Samba/Winbind “reading winbind reply failed” error

I'm trying to set up FreeRadius (on debian 7, samba 3.6.6) to authenticate with AD, and I've successfully joined the the radius machine to the domain (server 08 r2). I can successfully run wbinfo ...
2
votes
1answer
182 views

what are the different ways to set file permissions etc on gnu/linux

On Unix a long time back I learned about chmod to set permissions and to allow programs to gain privileges. I have recently discovered extra commands on GNU/Linux: chattr, setfacl, setcap. Are there ...
1
vote
1answer
154 views

How to change permissions from root user to all users?

I created a folder on the command line as the root user. Now I want to edit it and its contents in GUI mode. How do I change the permissions on it to allow me to do this?