Security :: Get Root Through TR069 And Read Access?

Jul 13, 2010

I have an ADSL modem and router, its OS is linux. It runs ftp service, and I can read files in its file system, but I have no permission to list files and to write files. It has TR069 protocol connections and can upgrade remotely.It has ssh, but not started.

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Fedora Security :: Make The Root File System Read-only

Jun 23, 2009

I am interested in making the root file system is read-only. I've moved /var and /tmp file systems to another partitions. There are two files in the /etc directory that need to be writable.

These are:

I've moved this files to /var and linked it. I've added command to the /etc/rc.d/rc.local file:

That's it. Are there other solutions to make the root file system is read-only?

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Networking :: Run The Job Under A Root Account And Deny Read/write Access To A Normal User?

Jan 18, 2010

I'm setting up Ubuntu Karmic on my sister's old computer for my nephew, he's quite young so my sister asked to install some content filtering. I'll first setup an OpenDNS account and I've installed and managed to get dansguardian and squid working on a virtual machine to try it out. so far it's working pretty well, but I need to secure it form the inside out.

I was thinking of blocking specific outbound ports so he could not bypass the proxy. because by default the firefox configuration can be easily changed. so I have a couple of questions.

1. is it possible to block outgoing ports on Ubuntu?
2. is that the best method?
3. is there anything else I should be aware of to prevent subversion?

lastly, this question is probably unrelated to this board but I've set up a cron job to update a dynamic ip with OpenDNS, the problem is that the password is in clear text in the user's crontab, can I play with permissions? is it possible to run the job under a root account and deny read/write access to a normal user?

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Ubuntu Security :: Read/write Access To MP3 Files In /usr/Music?

May 2, 2011

I had to reinstall Ubuntu (Natty) on a brand new computer and while installing I setup the datas partition to be mounted in /usr but now I can't have access to files I put in there even if I setup the group/user permission! I can accezz /usr/Music but all files are locked

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Security :: Using Sudo To Give Read Access To Specific Directory?

Apr 29, 2011

I have a log server that collects logs from all the cisco devices on our network.he company policy states that any logs should only be accessible by root. So I have the following permissions set on the directory, as well as everything inside the directory where the cisco logs are kept.

Code:
drwx------ 65 root root 4096 Apr 29 7:38 rsyslog
The cisco folks are requesting access to these logs, which is allowed by company policy.

[code]...

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Ubuntu Security :: HD Crashed, No Boot, Some Sectors Read, Access Secure Files?

Jun 17, 2011

I was running a 2-partition hard drive, Windows Vista (lamentably) on one partition, and the other running Ubuntu. I began having trouble with the Vista partition, so I attempted to move as many of the files that I really wanted to keep as possible over to the Ubuntu partition, and then reformat and reinstall the Vista partition. As a result, I could no longer boot to Ubuntu, and I consistently got errors back from everything that I tried on the Vista partition.

The only way that I can now access anything on the hard drive is to insert the Ubuntu install disk, go into trial mode, then mount the partition. At long last, here is the problem: Is there anyway to possibly make the partition bootable again so that I could burn the files to a disk? From trial mode I can get to a number of the files on the mounted partition, HOWEVER, they are secured with the username and password of my user account on that partition. Is there any way that I can access the files from the trial mode by entering my username/password?

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Security :: Only Allow Root Ssh Access To The Server?

Feb 17, 2010

When creating 10 samba users I also created Linux users. I do not want these Samba users to be able to use putty, winscp etc to access the server.

Do you know how I can restrict ssh access to specific users?

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Security :: Deny Root Access To A Given File

Dec 7, 2010

I would like to know if it is possible to deny the access to a file for root? Would ACL's be a possibility? I have "googled" around but haven't found anything interesting (except SELinux). I should secure a password file to an important database.

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Fedora Security :: Root Access For Winows Partitions?

Oct 6, 2009

I'm currently running a dual boot (VistaFedora 11) system. I've noticed that the first time I access files on the Windows partition (via Nautilus GUI) I'm prompted for root access. However, on subsequent attempts to access the Windows partition I am NOT prompted for root access (even after I close/re-open Nautilus). My concern is that I'm leaving my root access "open".

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Ubuntu Security :: Graphical Root Access Inconsistancy?

May 25, 2010

I temporarily placed a Back in Time backup into the root partition, by running it as root.However, I couldn't get it back out on the Desktop, so I opened a terminal window and ran 'sudo nautilus', which I now know should be avoided. I couldn't bring up "Properties" of the root folder, but I was able to open it and see the backintime folders. I then clicked on root, which was in the toolbar row "< root backintime" and was able to get full access to properties. I flipped folder access to "create and delete files" for Otherter disconnecting from the network, and moved the folder to the Desktop. So, is this correct or is it inconsistent that I could open root from the toolbar and not from the folder listing when opening 'filesystem'?

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Ubuntu Security :: Gufw Asks For Root Access When First Starting Up?

Apr 23, 2011

I just installed gufw and was in quite a hurry. A root acces prompt came up as I started gufw for the first time, and I quickly responded with appropriate password. All I saw in this hurry was that it had something to do with the usr/share directory.So, here's my question: Does gufw require root access when first starting up

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Security :: Doesn't Access Root Passward From User Login

Nov 26, 2009

I get the problem to acess root password when i am in user login, means wahen i am in user login and want to install software from terminal then he asked root password, when i supplied root password but he give me login incorrect.

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Security :: Su - Incorrect Password - When Logging As Wheel User And Trying To Access Root

Dec 18, 2010

I have tried to not allow root access and have created a wheel user.

Now I can not logged in as root.

Its okay but when am logging as wheel user and trying to access root then it says:

Code:

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Ubuntu Security :: Access To A Virtual File System For The Thermocrom Without Needing To Launch Owfs As Root?

Feb 12, 2011

I have been trying to use my DS2490 USB to serial device with a Maxim .DG1921G thermocron with owfs. It is supposed to give me access to a virtual file system for the thermocrom without needing to launch owfs as root.

Code:
/var/log/messages gives:
Feb 8 16:22:45 norman-HP-G56-Notebook-PC kernel: [ 236.140141] usb 5-1: new full speed USB device using ohci_hcd and address 2[code]....

but if ds2490 module is loaded it works when run sudo.It seems from this that it is a lack of permissions to USB but I have tried all the methods on at http://owfs.org/index.php?page=udev etc. to overcome this and a few others but none work.I am running Ubuntu 10.10 kernel 2.6.35-22-generic #33-Ubuntu SMP

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General :: Remount Root Filesystem As Read/write After Modify Readonly-root File?

Dec 21, 2010

My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:

# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs

[code]...

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General :: Windows Access The File From Ubuntu Got Read Only Even Though Have A Full Permission To Read, Write And Execute The File?

Feb 4, 2010

What are the possible problem when Windows access the file from Ubuntu got Read Only even though have a full permission to read, write and execute the file? Ubuntu to Ubuntu accessing the file there is no problem only Windows got a problem.

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Security :: AutoMount Any/all USB Drives READ-ONLY For Security (RHEL5)?

Mar 24, 2011

how to automount USB devices read-only for security in RHEL5? I'm looking for the generic solution for any USB device, so I'm not looking to hardcode something into /etc/fstab.I've hunted around and I can't find a clear answer and my various attempts have failed. I've looked at /etc/auto.misc, UDEV, and HAL. Here's where I'm at which isn't working.I have RHEL5 and from what I can tell HALD manages the automounting. HAL seems to have 2 primary directories:

/etc/hal/fdi
-and-
/usr/share/hal/fdi

The difference between the two is unclear to me.Based on some examples, I created the following file:

--------------------

Code:
<?xml version="1.0" encoding="UTF-8"?> <!-- -*- SGML -*- -->

<deviceinfo version="0.2">[code]....

No matter what I call this file or where I put it, any USB device still mounts RW. How do I fix this? Am I correct that HAL is the right place? Looking through dmesg, it sure looks like HAL controls this, but maybe I'm wrong? I've also made various attempts to solve this with UDEV and /etc/auto.misc, so if it is one of those, I clearly don't know the correct thing to do there.

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Ubuntu Security :: Giving Root Permission To An Application But Without Running It As Root?

Jan 20, 2011

want to run VirtualBox with root permissions. Trouble is that only when run as root i can access attached USB devices inside of a virtual machine, otherwise, these a greyed out).Now running VirtualBox as a root user also changes the configuration folders, making all my virtual machines already defined disappear. I also don't want to copy all to the root configuration folders. Is there a way to give the VirtualBox root permissions but without actually running the application as a root user. Is it possible to do without changing the permissions of the non-root user, i.e. i don't want my user to have all root permissions, due to security considerations.

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Security :: Secure FTP - Root Privileges After Logging In Form A Macintosh And Could Browse The Root Directory

Apr 12, 2010

I run ProFTPd with TLS authentication on my Debian Lenny server. My problem is that despite of the fact that my users connect chrooted, one of my friends had root privileges after logging in form a Macintosh and could browse the root directory, too.

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Debian :: Root Access And Desktop Disabled \ Couldn't Open The Root Terminal?

Feb 19, 2011

I was using the latest stable release of Debian, dual-booted alongside Windows Vista, with the GNOME desktop, installed via netinst, trying to build and install a library that I knew and trusted, when suddenly I couldn't open the Root Terminal. I clicked the link (in Applications->Accessories (I think, whatever the top one is)->Root Terminal), and in the taskbar I saw an item that said "Starting Root Terminal". A few seconds later, that went away, but the terminal still wasn't open. I tried the regular user terminal, to see the same thing happen. Unsure of what was happening, I tried restarting my computer, since that's always the first step you should take in computer problems.

When I restarted, GNOME wouldn't start. The screen would flash a bit for a few seconds, then a dialog box would appear over a background of static that said "The greeter application is crashing. Attempting another one...".t would then go back to the DOS-style kernel, wait a second, and then the same thing would happen. After several of that, I would get a blue screen which said something to the effect of "It has been detected that the desktop environment has crashed six times in the past 30 seconds.

Waiting two minutes before trying again." When it did that, I tried logging in as root to assess the problem. I gave it the correct password, but it said that it was an incorrect login. After several tries (to ensure I didn't mistype the password), I logged in as myself. Same problem. I tried the su command, with the correct password, and it said it couldn't authorise it.

After a lengthy conversation with a friend of mine who was very good with computers, he basically summarised that he had no clue, but that his best guess would be a virus. Upon running the Linux installer, I found the Repair option. Not being particularly familiar with Linux, I used it simply to backup my important files onto a flash drive. I then tried running the Install option, in an attempt to simply write over my existing Linux and make it new again. The installer, however, consistently froze up when trying to start the partitioner, on the "Checking disks..." stage. I figured it was a problem with my partition. In my naivete, I simply used the Windows tools to clear that partition... It destroyed GRUB too, so I couldn't run any OS. I figured my computer was pretty well screwed, and at that point just decided to bring it into the shop and have them completely wipe it.

my computer was backed up onto an external hard driven I brought it back, I reinstalled Windows. Upon restart, it said that it was still looking for GRUB, which made no sense to me. After messing around with it a bit, I decided to just reinstall Linux too. To my lack of surprise, that fixed the problem. Both OS' now ran just fine. The first thing I did on Debian was to install the Clam Anti-Virus, which I understood to be one of the best Linux anti-viruses. However, within about 10 hours, got the same problem as originally. I wasn't doing any of the same things, and between the lack of consistency in activities and the fact that I had an anti-virus running,figured it wasn't a virus. Not knowing what to do, I just left it and have been using Windows since.

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Ubuntu Security :: Wireshark Security Root Privileges?

Mar 25, 2010

Having read on the forums about some of the dangers of running Wireshark as root, I would like to know if anyone can suggest some alternative packet sniffers/network analyzers which will offer similar results but without the security issues. I am using Karmic Koala on a Fujitsu Siemens laptop with wireless router (firewall enabled)

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Ubuntu Security :: Security E-mails At Root Login?

Sep 8, 2010

Whenever I login as root, an e-mail with the subject "Security information" is sent outwhere the e-mail address for this message is configured? I need to change it (or perhaps disable it).

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Fedora Security :: Become Root Without Root Password?

Oct 20, 2010

I found this on Bee's website. For more info on this exploit there are links there:[URl]..All you have to do in Fedora 13 is enter the following lines in a shell as normal user:

[Code]...

I don't think this can be considered solely an "upstream" problem, because I first tried it in Arch using the same version of glibc, and the final command causes both gnome-terminal and xterm windows to disappear.

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Software :: How To Set A User To Let Him Having The Read-right As The Root

Oct 1, 2010

Assumed I have user called myUser. How to set this user to have the read-right as the root?

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Ubuntu :: Convert Read-Only Root FS To SquashFS?

Apr 5, 2010

in the right direction to convert my root to a squashFS image.I currently have a working read-only root file system that I setup using the the AUFS tutorial.How can I convert this to a squashFS image, and then configure initrd and grub to mount it during boot?

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Ubuntu :: Read-only Root And Can't Edit Fstab

Apr 19, 2010

I was unable to boot into Ubuntu 9.1 today because the file system is now read only. When I check fstab, it shows "ro" but I can't change it because it's on a read only file system. I tried umounting the root then remounting with read/write access, but I was unable to umount the root. I also tried booting with a live CD, but all I can find is the root.disk file, I can't see any of the file structure. That's probably just how it is supposed to be, but I'm new to Linux so I found it strange. method to either change the disk to read/write besides this?sudo umount /mount -o remount,rw /The other option would be to somehow mount the disk image while using a live CD so that I can get to the fstab file and edit it.

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General :: Make A File Read-only Even For Root?

Jun 2, 2010

Remember back in the days of MS-DOS, a file could have 4 different attributes: archive, read-only, hidden, system. As you know, MS-DOS didn't have any user rights or privileges. Files had no owner. If you were at the command line, you could do whatever you wanted, you could change or delete any files you wanted to... so long as they weren't read-only. Under MS-DOS, if you had a read-only file and tried to delete it, you would get an error saying "Cannot delete read-only file". There was a simple remedy to this, just turn off the read-onlyness:

Code:

attrib -r hello.txt

The point I'm trying to make here is that even though you had full permissions over the file, you still had to turn off its read-onlyness before you could make a change. Well I'm trying to do something similar in Linux. Under Linux, the root user has full permissions over every file. But I need to make a particular file read-only so that not even the root user can alter it. I have a few programs on my computer that need to be run as root because they do some low-level networking (raw sockets and the like), and these programs alter my "/etc/resolv.conf" file. Well I need to find a way of making my "/etc/resolv.conf" file READ-ONLY, even for the root user. It doesn't seem as though the Linux filesystem provides a means of doing this, reason being that the root user will always be able to alter any file it wants to. I was thinking though... there's some way I could turn my "/etc/resolv.conf" file into a virtual file of some sort, like maybe I could use some sort of mount program to mount the file as read-only... ?

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Server :: Root Filesystem Keeps Going Read Only / Why This Happening?

May 21, 2009

I'm running CentOS 4.3 on a VM which is an application server for Quinstreet. trouble is when i keep coming in during the mornings it seems to keep making this root filesystem read only. There is no pattern for this and neither is it clear in the messages log why this keeps happening.

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Fedora :: Can Non-root User Read BIOS Asset Tag

Mar 12, 2010

If I'm root, I can use the dmidecode command to find out the BIOS Asset Tag value:

Code:

Handle 0x0004, DMI type 3, 17 bytes
Chassis Information
Manufacturer: xxx
Type: xxx

[code]...

Is there a way that a user without root privileges can read this value?

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General :: Make The Root Device Read/write?

Mar 4, 2011

I need to change a filename but when I boot up I get the message root device is read-only. Is there a way of changing this so that I can change the filename. I have a Mac Pro running Leopard OSX. The graphics card an NVIDIA 7500GT or driver has failed. It was suggested elsewhere that I change the relevant kext files to filename.kext.old, which I did, now when I try to boot start in OSX I get a message in various languages telling me to restart. I have tried booting in safe mode and from original Installation CD. In Safe Mode I get the same multi language splash screen, from CD I still have the graphic card problem, screen freezes and artifacts appear. So I boot up straight into CLI by holding down CMD-S hoping to be able to change filenames back but it says device read-only.

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