Ubuntu Security :: Lock The CD / DVD When Absent
May 7, 2010
i tried to make a recommendation ( ups that link ain't comes from me - i only looked for a word in a dictionary ) about traveling around with a laptop. i talking about my own experinace ( sitting in a train go to dinner - chain my laptop but - DVD-drive?? ) for GUI user i think it will be a nice option in the screensaver setup to lock the CD/DVD drive and thus should be very easy to implement by the "eject" command. just have another buttom "lock/unlock" the drive in the menue. think it's usefull and easy to implement.
--> ecject -i 1 / 0. i use this on my sony - works. i know it possible to bypass this - but this will take some much more time.
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Aug 7, 2010
I recently re-installed lucid on a machine with two working DVD writers, one SATA, the other IDE. After the re-install, neither drive appears to be recognized. Putting an blank CD into either used to cause a pop-up that would ask me if I want to run k3b, but now it doesn't. If I use an external USB DVD writer, I do get that pop-up. Sadly my external USB DVD writer apparently writes unreadable disks, so it is not part of a long-term solution.
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May 18, 2010
I have a usb-hdd at one location that I use for backup purposes.It is listed (by its specific label, not uuid because I don't want to go through the hassle of changing this when changing backup drives or adding one at a different location.Now, since upgrading from 9.10 to 10.04, I get the following message during boot when the usb-hdd is not present and thus not attached:The disk drive for "/media/backup" is not ready yet or not presentI need to press S to skip mounting manually, whereas 9.10 just ignored that fstab entry and continued booting. How can I get the old behavior back? Is there an option I can give in fstab that mounts the drive at bootup when present and ignores it when not?
Perhaps an even better solution would be to let the drive be mounted according to the fstab entry whenever it is attached (be it at bootup or at any other moment): is this possible?elated to that: are drives unmounted/mounted in a suspend/resume cycle?
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Jul 27, 2010
I have a ext hdd..seagate go. And my 14 yr old son likes to get into it without asking me; of course i dont care when he asks but i don't really want him to get in there and erase anything. I am about to leave for training for 18 weeks with the military. Is there a way i can "secure" the drive for the amount of time that I can't take it with me?
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Jul 7, 2010
I'm having problems getting my wireless network working. The same problem exists in both Debian 5.04 and Ubuntu 8.04. I'm using a Sonet ZEW2500P USB wireless card, which shows up when I look at lsusb. The card works under Windows, so its not a hardware problem.
When I run iwconfig, wlan0 simply doesn't show up on the list. It doesn't go by any other name either. I've tried adding iface wlan0 inet dhcp auto wlan0 to my /etc/network/interfaces file, but to no effect. I've tried using both the rt2000usb driver and the old rt2570 driver, and made sure both are not loaded at the same time using lsmod, but this doesn't help.
I wanted to try the CONFIG_NET_RADIO enable/rebuild kernel technique, but I can't find CONFIG_NET_RADIO anywhere in my autoconf.h file!
I assume someone will want to see a log file of some kind - just let me know which one (and where I can find it).
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Nov 6, 2010
Is there a program like BlueProximity but works with a file on a flash drive which will lock up the computer if it does not detect a file on a flash drive. What I am wanting to do is make certain features inaccessible if the flash drive is removed so if anyone uses my computer they can't hurt anything.
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Jul 28, 2011
I had a buddy that swore he was such a linux guru he could bypass the lock screen easily but refused to elaborate. Was he just being faseeshis or was he legit. I don't accept starting a new X session using the terminal or restarting and using recovery tool to change password as an answer.
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Jan 12, 2010
how do i modify the ubuntu firewall to let in certain ip addresses but lock others out.
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Mar 12, 2010
Is there anyway to make the lock screen password (accesible when clicking the power icon) different from the username password ?Or to lock the screen, with a different, User defined password, seperate to the Default one ?
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Apr 22, 2010
I recently set up a family computer for a friend, and now his son is "experimenting" with the terminal (randomly entering commands). since he could accidentally do something bad, I am supposed to prevent him from using terminals, but only as hi user. I tried vlock and away, but with vlock it says 'this terminal is not a virtual console', and away can't seem to lock all consoles.
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Aug 15, 2010
I'm using Linux. I want lock a folder. Way for each use To request password. And end use. In the first case to go back again. (Sorry if I wrote bad. I'm not English speaking)
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Feb 13, 2010
Is there a way to lock down the Grub loader so that no one can edit it at boot-up, unless they have a password?
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May 12, 2009
Is there a way to lock out logins at the console? I ask this because I can not login at the console but can remotely login to the system via ssh. I'm guessing I blindly implemented a security option and didn't know what I was doing when I did it.
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Aug 30, 2010
Is there a way to set Linux to automatically log in to a specific user account and at the same time lock the screen? I want to save time and trigger various software that always should start up on boot, while leaving the computer unattended during startup (extra important and practical for remote control boots), by enforcing a 'screen lock' so that no-one can see what happens behind the login screen without entering the login credentials.
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Oct 2, 2010
Let's imagine this can be done in Firstarter, as there already is a fine lockdown option there: A kind of RULE: on [program/service] exit/completion of download - then lockdown connection [usually the eth0].
[Edit:] Or for that matter, put a lockdown action on any premise like inactivity on port 80 or such (all the rest),
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Jan 14, 2010
I noticed (the hard way) that enabling a guest session under 9.04 does not lock the source user. I enabled a guest session for someone and came back to find them rooting through my files. By quitting the guest session, it goes back to the source user's desktop without requiring a password. Shouldnt it go to gnome-screensaver automatically? Can this be changed? Is it a bug?
to replicate: log into source user's account use the menu to start a guest session quit the guest session root through files un-opposed.
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Apr 3, 2010
Is there a program that allows me to password lock a single file or folder?
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May 25, 2010
I'm trying to lock an account after a number of failed login attempts in a RHEL5.
This is the relevant configuration in /etc/pam.d/system-auth
In the logs I can see how the count of failed logins increase and exceeds my deny option but the account isn't locked
Do I need any other option in the PAM file? Is there any other way to lock an account?
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Nov 5, 2010
I installed Pessulus on my workstation and I'm not able to lock other users profiles? I see the little wooden shield when I click on them, excpet it isn't blocking anything?
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Jun 8, 2010
I am trying to disable accounts after 5 unsuccessful login attempts. I am following the guidelines in this article:
[URL]
This is on an Oracle Enterprise 5.4 box, which is essentially RHEL 5.4 Here is what my /etc/pam.d/system-auth looks like:
--------
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
[code]....
Unfortunately, the account does not seem to be locked or disabled. As root, runninng 'su test2 -c <some-command>' always sucessfully runs <some-command>, and leaves the failed attempt count at 6. /etc/shadow does not have an * or ! anywhere in the encrypted password for the 'test1' user.
What am I doing wrong? I thought that with the max attempts set to 0 in faillog, that the deny= parameter would be used. I thought I should be using su <user> -c <command> from the root account to test if the disable feature is working.
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Jan 7, 2010
As part of making a encrypted private folder i told encfs to encrypt swap space on my pc knowing that this would probably break sleep and hibernation. That said i just turned on ubuntu for 5 mins, had to go away for a bit, when i came back to unlock the screen my password was not being accepted, and another 5 mins later the screen said that my session had timed out-i had to do a cold reboot Does this mean i cant lock the screen anymore?
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Jul 6, 2011
Is there a way to set Linux to automatically log in to a specific user account and at the same time lock the screen? I want to save time and trigger various software that always should start up on boot, while leaving the computer unattended during startup (extra important and practical for remote control boots), by enforcing a 'screen lock' so that no-one can see what happens behind the login screen without entering the login credentials.
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Feb 16, 2010
how to lock down individual users from setting a proxy server. Its a server not a WS so it should never go to the internet. I want to lock down the system side and firefox 5 settings.
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Mar 25, 2010
When i connect windows server 2003 from ubuntu these error displayed .When i installing the tsclient, by executing these following command from a Terminal window:
sudo apt-get install tsclient
When i run these command the following error displayed.
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
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Sep 14, 2010
I have a HP Pavilion dv4 that is 4 months old. Yesterday it suddenly seemed to restart then once I logged in it turned off. When I tried to turn it on some of the lights came on and the caps lock and num lock started flashing. Since then I have not been able to get it to work correctly.It once seemed to turn on but died again after the login window.I tried to use my live cd but the same thing happened. It started loading once, but then shut down again. Every other time it stayed dead minus the lights
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Jun 12, 2011
I recently installed Ubuntu 11.04 on an old Sony Vaio laptop. I was following some of the steps here..[url]
The step "Enable Full DVD Playback(Dual Layer DVD Support)" did not finish correctly doh and now I can't use 'sudo apt-get' for anything or the software center or using the 'Update Manager' does not work.
The update manger says it may be caused by an update not finishing correctly which sounds correct as explained above. The apt-get command gives me back the following....'Could not get lock /var/lib/dpkg/lock resource temporarily unavailable' 'unable to lock administration directory /var/lib/dpkg is another process using it?'
I tried the obvious restart but that hasn't worked.
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Feb 25, 2010
my problem is the terminal:
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/) , are you root?
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Apr 3, 2010
I have pidgin2.5.2. I want to install pidgin2.6.6.How can I do that?E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
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May 2, 2010
There is a very strange problem I've been having. When I enable either Caps Lock or Num Lock the media controls on my keyboard cease to work. I have Googled this one to death but found nothing. This problem existed in Xubuntu 9.10 and now still exists in Xubuntu 10.04. The keyboard I use is a Logitech Elite Keyboard. I would love to be able to use the Caps Lock and Num Lock without the worry that I am disabling the media controls
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May 27, 2010
I have just burned the latest CD using infraRecorder, as per the instructions on this site, however when I boot from this CD, it spends about 5 minutes moving the red balls across my screen, then all of the sudden it just freezes, and my caps and scroll lock lights start to blink. I've had a look in the forums already but there's nothing about this happening on Boot of the live CD.
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