Ubuntu :: Setting File Permissions For A File?
Jan 6, 2011
I have system at work I am setting up that runs on linux, it was powered up back in september but we didn't get the details to configure until this week, unfortunatly var filled up with 100% spaced used due to a log file that keeps being written to until its intizilized, I can't just delete the file so (will not be recreated), I pulled it off and took it home and split it into a smaller file (from 740mb down to a 15mb chunk)I'm really just a linux newbie so can someone explain to me what the permissions are on the current file and then what chmod would make smaller file the same. clusternet.log is the orginal and clusternet1.log is the one i made from split. I know its read, write and execute (whats the r write after x on clusternet.log?) but I'm not sure on what it means in the position its in, the clusternet.log should have permissions only for root correct?
Code:
-rw-r--r-- 1 luke luke 16613376 2011-01-06 20:10 clusternet1.log
-rwxr----- 1 luke luke 740130816 2011-01-06 06:39 clusternet.log
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Jul 7, 2009
i am trying to set the file permissions for the log files "/var/log/Xorg.0.log" and "/var/log/gdm/:0.log". These files seem to be created when a user logs into a whokstation (my guess so far). I am trying to comply with a security mandate that all log files in the directory /var/log are set to 0640. The two mentioned files always seem to have the permissions 0644, does anyone know where and when these filea are created and how I might set the permissions when the files are created
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Jun 26, 2011
I have a file server running a cronjob to reset file permissions on a regular basis. I was thinking, I wonder if there is a way to do the chmod and chown command in a single command, as I always have to do both on the same folder, the way that you can do "chown root:users Uploads" instead of having to do two separate commands for chown and chgrp.
Then I got to thinking, are these commands even necessary? Every file copied or moved into these folders by any user needs to be something like "chmod 750" and "chgrp root:users", so rather than running a cronjob to do these modifications at regular intervals, there ought to be a way to set the folder permissions so that any files contained within will have these permissions.
The problem arises because users create documents, then a supervisor with elevated privileges can move those documents into a shared folder, however the permissions are wrong, they are user1:user1 for the owner and group and the other users can't read the file until a cronjob changes the group to be users. This has actually been acceptable, but certainly there is a better way to do this.
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Sep 1, 2011
2 computers, Ubuntu 10.04 and Ubuntu 8.04. I have 2 folders named In and Out. Out I have set up on 10.04 for guest use. I am able to transfer files to 8.04 from that folder. Trying to set up In for a specific user to modify files. This requires a login. Both computers have the same user name and both have the same password. I set the file permissions automatically from 10.04 when electing to share In for allowed modiying. When trying to access In using 8.04, a password request window is generated with the user name already showing, and the domain name filled in as "Workgroup". The user name that shows is my login name, by the way.
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Jul 23, 2010
When setting up NFS what type of Linux file and directory permissions should you be familiar with?
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Jan 25, 2010
I have two NFS mounted dirs that the users want specific permissions set upon creation of dirs/files, independent from any other machine on the network.
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Jun 23, 2010
I want to copy a file into my Root folder but I cant.what should I do?
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Aug 23, 2011
How do I show a list column in file roller that shows permissions and ownership of files?
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Sep 20, 2015
I want to back up an entire Linux system on a 3Tb external Western DIgital USB3 drive.
I do not want to reformat it from what it is, apparemtly NTFS.
Is there a utility that can act like a file manager like mc, that will permit me to create an ever expanding (to 320Gb) TAR file that will retain all the original file permissions. I have had nothing but disappointment with Linux backup utils with a FAT32 external drive, and I am concerned if I just try an tar the entire drive at once, with around 3 million files, I might run out of memory.
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Apr 6, 2010
I have an ntfs partition that I wish to access as a normal user(non-root). For this I did the following. As root I created a folder /windows and did a chmod 777 -R on /windows. Then I added the following line to /etc/fstab
Code:
/dev/sda3 /windows ntfs-3g defaults,nosuid,nodev,umask=000 1 0
Now, the partition is mounted alright but the problem is that when any other user (non-root) creates a files in /windows (say by executing touch newfile) the newly created file has the owner and group set as root. The non-root user can create the file and he can also delete the file, however, he cannot change the permissions of the file and also the owner:group is always set as root:root. How do I get across this problem, i.e. how do I mount a partition, so that a non-root user can also change the permissions and ownerships of the files he creates.
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Oct 16, 2010
Finally I managed to install my printer/scanner drivers.The last thing I need to do is to add the following two lines to 40-libsane.rules (which is a read only file):# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes".How can I change permissions for this file or add these lines without changing permissions?
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May 17, 2010
A bunch of my .rtf files suddenly (within the last few days, not sure when) have the "Allow Executing File as Program" box checked under their file Permissions. So whenever I try to open an rtf document, it asks if I want to run it. What's up with that?
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Dec 10, 2010
On both my 32-bit laptop (openSUSE 11.3) and my 64-bit desktop (openSUSE 11.2) I have been unable to find out how to prevent seeing all the "hidden files" when opening files in many applications, including (for example) GIMP, Xournal, OpenOffice, gedit.In the Control Centre "File management" options "Show hidden and backup files" is NOT checked in "File Management Preferences.
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Mar 23, 2010
Is there a command I can use to get the permissions of a folder in a terminal? Everything I've seen says how to change permissions, not see current ones.
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May 11, 2010
on certain folders on a samba-server I would like to allow everyone everything.(Note: This refers to the filesystem-permissions. External security is cared for by samba. No problem here)That means: every local user and every remote user should be able to fully create, delete and modify every file in certain folders and all subfolder of these folders. This should include file contents and timestamps and permissions. And it should include modifying files owned by someone else, again meaning create/delete/modify/timestamp etc.
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Dec 10, 2010
I have installed php, mysql, and apatche. And i need the /var/www/ folder to be able to be read witten, and acsessed by anything. I have tried chmodding 777. But it still doesnt work.
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Feb 17, 2011
I have a problem with file permissions over samba. I am running a web server, and this web server needs to be able to delete a file. The php code is correct, because it works on other sites. The php code is failing when it deletes a file because it is being ran as the www-data user. And the permissions on the files that are created on the share are as follows:
ns$ ls -l
-rwxr-xr-x 1 root root 129628 Feb 6 08:16 20110206071748532.pdf
This directory is mounted on:
/var/www/files/23982dbb7a454425ce17a22bedc00776/scanned/AEC_Scans
This is done with the /etc/fstab file:
//192.168.58.2/Scans /var/www/files/23982dbb7a454425ce17a22bedc00776/scanned smbfs username=administrator,password=somepass
[Code]...
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May 10, 2011
I've made a really critical and simple mistake and now I am trying to recover my computer. I accidentally logged into root and was trying to change permissions for the current directory with "." but instead used a "/" which started changing permissions of everything from / recursively. I quickly realized the mistake I made after it started and aborted the process by pressing ctrl+C. However I know many things are still not right because, even though I tried to reboot and change the permissions back to 0755 from the recovery mode root console. I still get errors when gnome tries to start..Here is the exact error I am getting. "There is a problem with the configuration server (/usr/lib/libgconf2-4/gconf-sanity-check-2 exited with status 256". I'm pretty sure because of the way I aborted or because of the time the filesystem was running with 644 permissions, some amount of damage was done. Any way to recover it to normal? Or is there a way to recover it from the Ubuntu CD?
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Jan 29, 2011
How to get the permissions of any file systems
---------------------------------------------------
what does it mean?
"permission denied while opening filesystem"
through commands can we give/get permissions of file systems
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Jan 4, 2010
I'm using Ubuntu 7.04 on a live boot right now so I can move from files from a hard drive on a computer that won't boot. This is my work computer, which contains about three years worth of accounting and inventory information that I absolutely must recover from the drive. The computer runs one SATA drive, and has no ports for additional drives. Otherwise I have two USB drives connected and an IDE connected through a USB adapter. (The SATA drive will not work through the adapter for some reason). I have absolutely no access to another computer with SATA support.
All the drives mount on 7.04, and I can view the files on the SATA drive - which leads me to believe the drive isn't completely dead. So i'm hoping to move the files I need over to one of the USB drives.
However, i'm getting flags when I move files. -Without- installing Linux, is there a way for me to grant myself permissions to move/copy/delete files on my hard drives? Otherwise, is there a simple way (that won't compromise the data on the drive) for me to re-do the partitions the SATA drive so I can install linux?
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Jan 25, 2010
I use a USB drive to store most of my personal and work files, and I use it both at home and at work (two different machines, both running Ubuntu). The drive is encrypted, and is accessed using TrueCrypt (the entire drive is encrypted as a device rather than an encrypted file on the device). The TrueCrypt device is formatted as ext3/ext4.
I have a problem with certain file permissions being changed to read-only (rw-r--r--) after mounting the drive. This happens after I have used it on one computer, and then I mount it on the other. Even though I have been setting write permissions to all (chmod -R a+rw *) to get around this problem, when I mount on the other machine the write access is gone. I don't want to keep manually changing permissions; I would like the file permissions to stay as I set them.I'm using the same version of TrueCrypt at work and at home. I'm running Ubuntu 9.04 at work, and 9.10 at home.I do have different usernames on these computers, and I suspect that is the problem (but don't see why this would change file permissions for all users).
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Feb 23, 2010
I have a recently setup my first linux server (hardy) and am having problems with the permissions for a log file being changed. I believe this is caused by syslogd, but am not sure how to correct it. Bacula will report it is unable to start a backup because it is unable to open the log file (/var/lib/bacula/log) "permission denied". After changing the owner from syslog to bacula, the backup will resume. However, the following day I encounter the same problem because the owner of the log has been changed back to syslog.I see where the permissions for logs are altered in sysklogd, but I am not certain how to make bacula exempt or if this is the right approach.
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Mar 3, 2010
I am setting up a new ubuntu server, and I am quite new to linux. This server will be used as code repository for a project I am going to be working on. I plan to setup 3 groups for users: dev, test, doc
- for various developers, testers and documentation users.
I would like to setup the following permissions on the main code repository directory:
dev - write permission
test - execute permission
doc - read permission
public (anyone outside these groups) - deny all access
I am unsure what chmod setting to use, or if this is even possible in ubuntu.
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Apr 6, 2010
I have seen this issue come up previously in the forum: external program calls are disabled due to unsafe options file permissions But the resolutions previously posted have not worked for me:
[code]...
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Jun 9, 2010
Is it possible to have a text file somewhere that contains a list of all users that are allowed access to a given folder? This would be fantastic for file servers on a network.
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Jul 13, 2010
Can only read files on USB stick, and USB Drive. Can't copy, move or delete them due to restrictions/file permissions...."You are not the Owner...." etc. Can I remove all such permissions. I am the only user of this machine?
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Sep 26, 2010
im trying to execute a file. When I try i get the message:
The file ...Installer.exe is not marked as executable. If this was downloaded or copied from an untrusted source, it may be dangerous to run...
So when I right click on the file and select properties>permissions and check the 'allow executing file as program' it instantly unchecks the box. I can't check the box.
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Nov 12, 2010
I am trying to change the write permissions on a file and On the screenshot you will see where i have underlined, its states i dont have owner rights to modify this file, how do I get owner Permissions when this is my installation..
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Nov 17, 2010
I'm trying to install a script and I need to change the permissions of a file within the script, but I am being denied from doing so. I know that I could change the password of ROOT, but I don't really feel like going through that again when I can just use 'gksudo nautilus' in Terminal. How can I change the permission without being on Root?
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Nov 23, 2010
I opened up my Gimp brushes folder so that I can put a brushes file into the folder. Would not let me do it. Said I am not the owner and do not have permission. I right clicked inside the folder, same thing permissions grayed out, not owner. No apparent option to log in or do anything to gain permission. What can I do?
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