Ubuntu Security :: File Permissions In Live Session CD

May 9, 2010

I have broken my MBR and can now only enter 9.10 with the ubuntu start up cd.when i boot through he ubuntu live cd.I can see my mounted drive with all my files however i do not have the permissions to open or copy some of my files( music, films, pics) . id like to do this so i can transfer all my files to an external HDD and reformat start all over again.error when trying to open files.You do not have the permissions necessary to view the contents of.

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Ubuntu :: Permissions In A Live Session On Boot From CD

Jul 19, 2010

Have problem with HD too full so I have booted from a live CD hoping to copy my document and data files onto an external drive.

Have a problem with a couple directories on my HD. They have a X on them and when I try to copy them I get an error message that I do not have permission to read them. Same thing happens when I go to open the directory to see what files are in there.

I can get the permissions changed in live CD session so I can copy them to the external drive.

No luck doing it in a regular boot to my HD as it will not allow me in due to the HD being full. Even in terminal I can't access the directories in question because the seem not to exist but yet when I do a df command they show up.

P.S. This problem occurred after I updated to ver 10.4

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Ubuntu :: File Moving Permissions In 7.04 Live?

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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Security :: Setting File Permissions For File /var/log/Xorg.0.log?

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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Ubuntu Security :: File Access Permissions

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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Ubuntu Security :: Vim Ignores File Permissions

Mar 24, 2011

How is possible, that vim can write to file and changes his ownerchip ?

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Ubuntu Security :: File Permissions With Apache

Jul 6, 2011

I know how to assign file permissions and other tasks like user to group, but I'm stuck with a situation in how I should set up my system.So I have a LAMP server set up. I'm not the only developer so I created a group called "developers" for my other users "Mike," "Alex," and "Cindy," which are developers (I'm Mike by the way). I know that "www-data" is the user and group Apache uses.This is good because only I have permission to update the production site, but for the dev site, it's a different story.

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Security :: Is There Way To Specify Append Only Permissions For File?

Sep 12, 2009

Is there a way to specify append only permissions for a file?

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Ubuntu Security :: How Secure Are The Default File Permissions

Feb 5, 2010

What do the default file permissions in ubuntu 9.10 protect/deny access to?

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Ubuntu Security :: Unable To Set File Permissions (NTFS Volumes)

Oct 3, 2010

In Nautilus I select a directory on local NTFS volume. I'm logged in as root, right-click > Properties > Permissions and I set "Others" to "none". But it doesn't work. I want my friends & visitors to use and enjoy Ubuntu but without access to my NTFS volumes.

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Fedora Security :: Default File Permissions In /boot?

May 14, 2010

Does anyone know why files in /boot are world-readable (particularly the initial ram disk)? I'm not an expert, but I would not expect anyone except root or a sudoer to have the ability to read these files.

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Security :: User Names And File Permissions On Two Different Computers?

Jul 23, 2009

Picture the following:On computer A, local user John (and John alone) has rwx access to file1.txtComputer B also has a local user account named John. If file1.txt was to be copied from computer A to computer B, would the user account John on computer B be able to access it?I guess this wouldn't work using two windows computers due to the User name / GUID relationship. Maybe linux has something similar?

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Security :: Flow Chart For File Access And Permissions Processing?

Jan 25, 2011

Is anyone aware of a detailed "flow chart" -- arrows and decision diamonds, etc -- that describes the file access and permissions processing? I would love to see that diagram. Years ago on a platform far away (Digitial VAX/VMS) their manuals had such a flow chart that covered not only the user-group-owner and read-write-execute permissions decision making but also include "access control list" processing at a superficial level. If someone has access to the VAX/VMS flow chart, that might be a start toward sorting what linux does.

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Security :: Folder Permissions To Avoid File Upload By Http User?

Feb 24, 2011

However, configured a website on a dedicated server using WHM/cPanel. The site was uploaded using the master account for the website.

The security issue is public users are able to upload files on to my server via the website. They could even access the root and execute whatever they want on the server.

I have consulted with 2-3 Linux experts. According to them, the PHP user has rights to execute anything on the server or upload & store files in whichever folder they want.

Can I protect my folders to avoid file uploads via the website. The application has security vulnerabilites. However, I want to prevent hackers to enter my site until the vulnerabilities are fixed.

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Security :: Setup File Permissions For Multiple Groups/users That Use Windows?

Nov 2, 2010

I have a remote directory shared over NFS called tech with perms set as 0750 and owner set to root:tech. I have 2 groups: tech, and techAdmin. tech can read and execute within tech/. techAdmin can read, write, execute. I have 4 users: user1, user2, user3, user4. user1 and user2 is a member of techAdmin, user3 and user4 are members of tech. simple so far...but wait here's the problem. If user1 creates a file inside tech, user2 cant read or modify it because user1 owns it. Here's a few sites that reference this problem:

[code]....

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Security :: Debian Shows File Permissions Change When Copied To A Windows Partition?

Dec 10, 2010

Some time back using this computer a SucKit rootkit was found. Having dd urandomed the drive, flattened CMOS battery, flashed BIOS, run Knoppix live CD 6.1,using no flat pack battery (laptop), and memtested the RAM, I am still having problems with what I suspect is a javascript file that tries to reload the rootkit from? firmware. I suspect the firmware as everything else should have eradicated it??

Also it or a hacker via a backdoor then corrupts the drivers so devices malfunction. Windows security programs and rootkit detectors don't seem to pick it up. Fresh install of Windows or linux after the above still show this problem, though internet not used. The person who admitted rootkitting this machine is capable of writing java programs or using javascripts to do all this.

When viewed using Ubuntu 8.4 files and dates on a Windows partition appear normal both in file manager and terminal. However booting using Knoppix CD these files are all green, and I cannot change their permissions, even as root. ie: everything is green including text files etc. If I copy them to a linux partition, I can change their permissions and make them nonexecutable and nonwritable. Also on the Windows FAT32 partition the . directory has the date 1 Jan 1970.

If I disable any green files, I can shutdown and reboot cleanly. If I don't I start having problems shutting down [/usr/sbin/init ?] And always these follow a pattern:

Can't remember details as I have now corralled the beast but error messages relating to:

nfs-server
inet.d/statd

are the start of these.

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Ubuntu :: XBMC Session, No Audio, Permissions?

Jun 13, 2010

I'm having problem with XBMC sessions at startup. If a session is started automatically, i have no audio. IF i load gnome, then xbmc inside gnome. i have audio. If i then log out and log in using a xbmc session, i have audio. If i reboot then start xbmc a session (without logging into gnome and running it first), i have no audioWhats the deal? Originally i had problems with permissions, i hadn't selected "use audio devices" in the permissions menu when adding the user. Once i did this, i was able to use audio in gnome, then in xbmc. But never in when starting a sessions in xbmc first.

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Ubuntu :: Change Permissions For File / Add These Lines Without Changing Permissions?

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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Ubuntu :: Remove Live Session User ?

Apr 15, 2010

Before I start, I have searched everywhere I can for help with this, tried everything suggested and still cant do this.

The annoying thing is ive done it before but cant replicate it.

I have ubuntu installed on my usb stick using lili usb creator.

I want to remove live session user (username ubuntu).

Ive created my own account with privileges etc.

Ubuntu is 9.10.

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Ubuntu Installation :: 10.04 - Grub In Live Session?

May 3, 2010

I installed 10.04 by desktop image, and it did not let me install grub where I wanted. That is why I did not install grub at all. I got in console by ctrl-alt-F1 after installation is complete. How do you install grub from there?

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Ubuntu :: Burn An ISO To A CD While Logged Into A Live CD Session?

Mar 22, 2011

Is possible to burn an ISO to a CD while logged into a Live CD session? The issue is I'm logged in on an old 7.10 Live CD and would like to burn a 10.10 CD to do a reinstall after my hard drive broke. I realize of course the system runs from the 7.10 CD, but if it's possible to keep the system running from memory while burning or something.

There are no disc burning tools in the Applications menu, but wodim appears to be available at least, so if there's a way I would seem to have a tool to do the actual burning anyway.

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Ubuntu :: What Is Xubuntu 11.04 Live Session Password

May 23, 2011

I downloaded xubuntu 11.04 for an IBM Laptop. I wanted to see what it was like but cannot get into live session as the desktop loads then switches to a login splash with 'Other', when clicked I am then taken to Username and Password before I can enter the Live Session. I have tried to click enter leaving it blank.

Tried Ubuntu
Tried Xubuntu

Nothing gets me into a live session.

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Ubuntu :: Change Keyboard Layout From Live Session?

Feb 14, 2010

I need to change my keyboard layout from Arabic to USA. I cannot login to my machine, however I can access its files via a live session.

Is there a text file I can edit that will change my keyboard layout.

I am running Ubuntu 8.10 with a Gnome desktop.

I have tried editing /etc/X11/xorg.conf and this did not work.

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Ubuntu :: Failed To Shutdown LIVE CD Session / Resolve This?

Nov 3, 2010

I tested 10.10 LIVE CD Gnome version.

I did some disk operations on NTFS and FAT volumes.
It worked well.
When I wanted to shutdown from the right upper corner icon,
I got a black screen saying:
(process:272) GLib-WARNING **: getpwuid_r(): failed due to unknown user id (0)

it does not take any keyboard, incl cont+alt+del

may it be a bug?

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Ubuntu Security :: Www-data Security Permissions?

Mar 17, 2010

I'm running Apache2 under uBuntu 9.10. My problem is that I use my own user "wavesailor" to work on my websites. I kept all my sites under /var/www and I set up the security of the directory after following the guidelines.

Code:
sudo chown -R root:root /var/www
sudo chown -R www-data:www-data /var/www/*

[code]...

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Ubuntu :: Default User ID And Password In Remastersys For Live Cd / Usb Session?

Aug 23, 2010

what is the default user ID and password in remastersys for live cd / usb session?

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Ubuntu Networking :: Lucid Wifi - Persistance Or Carry Over From Live Cd Session?

Feb 19, 2011

Yesterday, I did a clean install of Lucid on a T42 thinkpad, with wireless card as identified by lshw below. I did the installation from within a live CD session, with wifi enabled.

Code:
description: Wireless interface
product: PRO/Wireless LAN 2100 3B Mini PCI Adapter
vendor: Intel Corporation

On reboot into the fresh system and update I had the issues that others have seen with network manager not connecting, repeatedly asking for password and so on. Oddly enough, using a Netgear usb wifi dongle worked perfectly, so I thought there might be a driver issue. Updates did not help. The network manager icon would not appear in the notification area at all when attempting to connect to wifi in a cafe locally. Today, I did a fresh re-install from the same CD with the home wifi switched off and no internet connection on the laptop. No issues. Wifi is working perfectly at present. I had to make the home connection available to all users to stop the keyring password request (I use autologin). I'll be trying to connect at local cafes tomorrow (one has no security, one uses an ascii wep password, and a third has a WPA encryption)

Is it possible that the settings from the live session are carried over in some way and interfering with network manager in some way? (This all started because my minimal install (see signature) reached a state where it would not show the network manager icon when attempting to connect to wifis in cafes and colleges, which I need to do. I decided to reinstall to return to a known state. I may try a minimal installation and manual wifi connection from the command line next...)

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Ubuntu :: Changing Sudoers Permissions - On A Live System?

Mar 7, 2011

i have this problem and i may need professional help; it appears smb4k made my /etc/sudoers file writable (according to log), hence, any sudo command will coerce this error:

Code: ubuntu@ubuntu~$ sudo any sudo: /etc/sudoers is mode 0640, should be 0440 sudo: no valid sudoers sources found, quitting i wanted to boot into recovery console and chmod 0440 /etc/sudoers, but it's a live system - it doesn't have a recovery mode. [URL].. How would i mount the live system from another liveCD?

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Ubuntu Installation :: Make DVD With Kubuntu And Xubuntu To Choose One To Start Live Session When Booting From Disc

May 22, 2010

I want to make a DVD with Ubuntu, Kubuntu, and Xubuntu so i can choose one to start a live session when booting from the disc. I'd like to introduce linux to friends and having a few variations might make it easier to transition.

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Ubuntu :: Root Permissions For Failed NAS Drive Linked Via USB And Live CD

Jul 26, 2011

I own a Lacie Network Space (1) which has recently given up the ghost - I looked into getting data recovered from it and it turns out it would cost around 500quid!! After doing some research I've found out that the drive runs linux - SO, I have bought myself a HDD cradle, Downloaded an Ubuntu Live CD, taken the drive out of the network space and mounted it in Ubuntu via USB. All good up til now, I've managed to get the majority of my data off except one folder - my music folder. It has quite a deep file structure (which maybe the issue) but essentially the permissions for the top folder have a padlock and a small cross - this doesn't allow me to even read the files to copy them off. I've now tried the 'chown' command: sudo chown ubuntu /media/ 999GBfilessystem/ openshare/audio

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