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.

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55 views

group member unable to write to a group-writable file with reiserfs and extended ACLs

Users vi and rust share group rust and want to use some file in shared manner. rust$ ls -l myfile -rw-rw-r-- 1 vi rust 0 May 30 03:48 myfile rust$ stat myfile | grep Gid Access: (0664/-rw-rw-r--) ...
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33 views

Owner can't read /proc/$pid/io

On CentOS 7, I am trying to debug an issue where the nginx amplify agent cannot read /proc/$pid/io even though it is owned by the proper user. One of the nginx worker processes right now is pid 5693: ...
4
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98 views

File permissions when removing user from git

I have a shared git repository set up, which users pull from with the ssh protocol. I would like to set up the permissions in a way that only users in a specific user group (e.g. git_group) may ...
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115 views

tor works when its in /usr/bin but not in /usr/sbin/

I have this very strange behaviour, I have two servers both running Ubuntu 14.04. I've installed tor on both. on machine A tor was installed (by default) in /usr/bin/ and works without any issues. on ...
4
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881 views

Permission problems. Can't retrieve inbox mails from dovecot

I got a VPS server at a webhoster which has CentOS 6.6 as operating system. Because I have multiple domains which are used by various people this server is going to serve multiple roles: nameserver (...
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50 views

Protecting my server from it's own users

Are there any tools to check my server's file system for permission vulnerabilities? My server is a low security web and email server running our local email and website. Anyone in my organization ...
4
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0answers
8k views

fatal: bad ownership or modes for chroot directory component “/”

I used to be able to connect via ssh with the user I have created but now I keep getting: "Write Failed: Broken Pipe" and I can only connect as root In the ssh auth.log I get the following: ...
4
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718 views

Give domain users permissions on cifs shares?

I am using CentOS 6.5 - users authenticate using winbind, all are domain users except for root. /home is mapped to a cifs share on a windows server in /etc/fstab with this line: \\server\home$ /home ...
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4k views

Samba's “inherit permissions” does not inherit modes for other

I have a share with "inherit permissions = yes". I have a directory in the share with mode rwxrwsr-x. If I create a subdirectory, the modes are rwxrws---. The same happens with a parent directory with ...
3
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45 views

fstab doens't read mode value

Following this guide: I set my /etc/fstab file in this way: proc /proc proc defaults 0 0 /dev/mmcblk0p1 /boot vfat defaults,ro 0 ...
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85 views

Read but not write access to a socket on Linux, what can one do with that?

On a server installation, I found sockets writable by group, but only readable by others. I assume that the latter has no effect, as my understanding was that write access is needed to be able to work ...
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230 views

Unable to log into Cockpit server - could not set limit for 'nofile'

I have Cockpit installed on a Fedora 22 VPS that I use for educational purposes. I tried logging into Cockpit from my browser, but I was given a "Permission denied" message, despite using the correct ...
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50 views

File permissions for kernel have changed in OSX Yosmite, why?

I am working my way through the book Learning Unix for OSX Mountain Lion (I don't have access to the updated version for OSX), in which it demonstrates that using $ ls -l /mach_kernel should ...
3
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0answers
87 views

LXC: Have rootfs mounted without nosuid

I have the container's rootfs in a volume mounted with the nosuid option. When I start the container, its / mounted is then also mounted nosuid, which breaks programs such as sudo. How can I avoid ...
3
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0answers
3k views

Permission denied when Ubuntu is attempting to mount to a remote Windows share folder

Fellow guys, I encountered the error when I's mounting my Ubuntu server to a remote Windows share folder, the following is the error on terminal after I typed command line 'mount -a': mount error(13)...
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394 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 ...
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15 views

Ubuntu and web server permissions

I am going to ask a question that has already been posted many times but even though I have read many guides and posts, I still have doubts. I have a server with ubuntu 14.04 on which I have a user ...
2
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0answers
75 views

apparmor - cannot load library

I'm trying to get apparmor set up on my system and am having troubles getting past the permission denied error: ping: error while loading shared libraries: libcap.so.2: cannot stat shared object: ...
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74 views

git push/pull with ssh key

I have a 'git --bare' repo on a linux machine. I wish to allow another user from a different machine to push/pull to it. I have their ssh key. Is there some way I can allow them to execute the ...
2
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56 views

Permissions (ACL) to allow creation of new files only - are extended attributes also needed?

I want to use a directory as a sort of drop-off point, similar to the Public folder in each Mac OS X home directory, that is: certain users (or everyone) should be able to create new files inside this ...
2
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0answers
147 views

rsync's “Read-only file system (30)” error

NB: This is a 2-part question: why does an error happen, and how to work around the error. (The two parts are related, inasmuch as the answer to the "why"-question may shed light on the "how"-...
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75 views

Setting umask of libvirt/virt-manager for proper permissions in a directory shared by host and guest

I'm attempting to create a directory that is fully available to both the host and guest systems of a virt-manager/libvirt/QEMU/KVM virtual machine, with read, write and execute permissions for non-...
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47 views

Unable to insert records on sqlite on a Linux environment

I tested a simple Php program using Sqlite3 instead of mySQL on my own computer and it works fine. What the program does is simple insert of record into a certain table. Now, when I try to do that on ...
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265 views

How to change to a different user after SFTP login

The goal: Use local IDE (IntelliJ PHPStorm 9) to browse & edit remote files via SSH The obstacle: My user on the remote machine does not have permissions to read files, which are owned by ...
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59 views

How to set EMIRGE program to write files with desired permission

How can I get the EMIRGE program to read certain files? I am using Linux Mint (17.1). I have downloaded a program call EMIRGE, which is supposed to take fastq files (a text file format for ...
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29 views

Netatalk user in both rwlist and rolist

0 down vote favorite I'm currently configuring a AFP server that's running OD, AFP, SMB etc. My problem is that I got a few shares that ALL needs to have read only on and a few people in a specific ...
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150 views

Unable to run chmod, chown, and even ls on a folder

I searched the net and tried to apply answers to similar problems but none worked so far. There is a folder named ocrpaylasim under /home/bnet path. This file belonged to bnet user before and was ...
2
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0answers
233 views

Unable to delete Root CA (UNIX: operation not permitted)

I am trying to delete a root certificate authority from my Mac OS machine. When I try this from the 'Keychainaccess' program it asks for my password and then shows 'ecKeychainItemDelete: UNIX[...
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37 views

Bind a directory as me

Analogous for a regular user running a thin FTP server (where others can access the file system with his/her permissions), can a regular user (through fuse maybe) "mount" a directory for others to use ...
2
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0answers
389 views

Decrypting with GPG after a “su - different user”

I have cron job running a script in the cron of "USER A" that encrypts many files in a loop using the gpg command below: gpg --batch --cipher-algo AES256 --passphrase "PASSWORDISHERE" -c FILENAME "...
2
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0answers
608 views

MySQL read only error but permissions set and SELinux AFAICT correct

I am new to MySQL and Linux and because I had issues with an old MySQL version (5.1) I used mysqldump and installed MySQL 5.6. I changed the datadir location by copying everything to the new folder ...
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71 views

Cleanup old /dev/pts files?

My company has a policy that sweeps all files on our AIX servers to see if any are world writeable. They are upset because there are some files in /dev/pts (a few with me as owner) that are world ...
2
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42 views

Disable viewing/listing rights to users

I'm new to linux administration and I'm not sure how to search for this problem. When I create a new user, s/he can browse the filesystem. E.g. ll /. How can I restrict the user to a few select ...
2
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0answers
196 views

Maildir permissions for courier

I'm having difficulty with maildir permissions for Courier, an IMAP server I've installed on a box running Debian Wheezy. The mail directory I use is /var/mail/users, with the following permissions: ...
2
votes
0answers
1k views

Tomcat unable to create file in dir owned by same group

I have a server running Tomcat, and I need Tomcat to create a file in a particular folder. Tomcat (technically a Java app) runs as the user 'tomcat', as evidenced by top: #top 1251 tomcat 20 0 ...
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200 views

How do I recursively apply default ACLs of a directory to its descendants?

If I have a directory with default ACL entries assigned to it, but some or all of its descendant files and sub-directories have access or default ACLs that do not agree with those defaults, how do I ...
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164 views

Easiest way to sandbox an user

I'd like to sandbox a user so that they can only read files under /media/shared/somefolder. What's the easiest way to accomplish this? Users/groups? ACL? AppArmor? Some context: Plex Media Server is ...
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536 views

Java plugin not working with FireFox 24.3.0 on Red Hat Enterprise Linux 5.10

In the about:plugin tab, there is not Java plugin. I have created the symbolic link as suggested. The output of the 'ls -al' command is: lrwxrwxrwx 1 shehab shehab 58 Jun 4 11:21 libnpjp2.so -> ...
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2k views

CentOS 6.5 sound permissions

I am trying to configure ALSA for a CentOS 6.5 minimal install, my problem is non-root users do not have permission to access the sound devices in /dev/snd because the files are missing access control ...
2
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144 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 ...
2
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0answers
265 views

New files getting wrong permissions from setacl

I'm trying to create a file from windows on a mapped samba share, but after creating the file, I'm unable to edit it. For some reason the mask is changing to rw- even though my default is set to rwx. ...
2
votes
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1k 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 ...
2
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0answers
456 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. ...
2
votes
0answers
173 views

Problem with encrypting /var/www and ikiwiki

I tried to encrypt /var/www with encfs. To do so I did following: mv /var/www /var/www.bak mkdir /var/www_enc encfs --public /var/www_enc /var/www cp -a /var/www.bak/* /var/www/ /etc/init.d/apache2 ...
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1k views

Permissions for Apache and FTPd users

I'd like advice about permissions on directories and files on a web/ftp server. Here is my situation: Debian Server with those user:group userme:userme for SSH www-data:www-data for apache/php ...
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12 views

Mirror Folder with root Permissions

i am using CRYFS (an encrypted filesystem) to store some of my files in an cloud server. If i mount the encrypted filesystem, a folder is created with the decrypted files in it. The Problem is that ...
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19 views

Dbus: Terminate not working on other user

I'm new with dbus(Using Ubuntu 14.04, Unity). So I'm logged with user A, create process as user B and that process creates session for user B, now I want to use dbus messages to shut down session from ...
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23 views

How do I run a supervisor command in a Eclipse PyDev project without being asked for a password?

So I've got the following code that should check whether an npm package is installed: def is_installed(name, as_global=True): # Returns whether NPM package is installed. s = shell(...
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vote
0answers
37 views

How to set folder permission with + at the end?

I'm trying to mount a network shared device in a linux box. I get permission issue but it was mounted properly in another linux server. The only difference on the server it works has a + permission at ...
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0answers
20 views

Is there any way I can track down what is removing the executable flag from a file?

I have a set of git hooks that constantly have their executable flag removed. I'm utterly at a loss for what might be doing it, but so far the only thing I've found that can even mitigate the problem ...