Ubuntu Security :: NX Bit Doesn't Work In 64-bit Kubuntu
Feb 21, 2010
I'm using kubuntu-9.10-desktop-amd64.iso live (booted via grub2 loopback directly from iso on hd, in case that makes a difference). Processor is a E2180 which according to the Intel website supports the NX bit. I've enabled the option "Execute Bit Support" in the BIOS. /proc/cpuinfo shows both nx and pae in both flags lines. But dmesg says "Using x86 segment limits to approximate NX protection".
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Jan 30, 2011
I can't seem to get htaccess to work.I've created a .htpasswd file like so:
Code:
htpasswd -c -m .htpasswd user
Then it prompts me for a password for that user. I put the password file one dir above my
[code]....
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May 12, 2010
I have an ssh tunnel with my ubuntu (vps) server. On my local computer I have proxifier, to redirect everything with socks5.
Everything works fine, I can browse websites and that. Email also works.
But when I want to visit a website that uses https it doesn't work. I do not get to see the website, or receive an internal server error.
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Nov 26, 2010
I found several instructions on how to use a live CD to reset the local admin password to blank.I download 10.10, installed chntpw, mounted the drive, and used the utility on the SAM dbase.Seems to work everytime and I write the changes and get a return code of 0.Then I reboot and the blank password doesn't work. Tried 3 times.
So I noticed that there was an "x" in the box that showed a policy that says you can't have a blank password when you 1st run chntpw. So I tried changing it to something else instead of blank.Still no go.
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Feb 7, 2010
So I installed pam-script
made this script:
Code:
#!/bin/bash
RFID_AUTH_SUCCESS=0
#Read the card
tag=`'/etc/rfid/RFID-login'`
code....
Code:
sudo test
It doesn't ask for my password and instantly authenticates as root!
if I run the above posted script manually, (cd into the dir and execute it), it works fine and produces the result 1 if positive and 0 if negative.
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May 6, 2010
I'm using Ubuntu 10.04 and for some reason, privoxy just won't start properly on startup. I see privoxy is there when I run 'ps -A', but Firefox says that it is refusing connections. When I run 'sudo /etc/init.d/privoxy restart', it restarts and everything is peachy. But for some reason, it just won't start properly on boot
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Sep 8, 2010
I like to encrypt my swap and tmp partition with /dev/urandom but it doesn't work. I tried it 100 times and now I have no idea.
Code:
cat /etc/crypttab
swap /dev/sda3 /dev/urandom swap,cipher=aes-cbc-essiv:sha256
cat /etc/fstab
/dev/mapper/swapswapswapdefaults0 0
If I reboot I get the message "/dev/mapper/swap" doesn't exist. It seems, that crypsetup doesn't setting up the encrypted block device. SElinux is in permissive mode.
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Jan 2, 2010
I recently was able to network 2 computers at home and I wanted to make my password more secure. When I try to edit my password via System>Administration>Users and Groups, it doesn't workI am able to edit my user settings. When I change my password I enter my old one and it accepts my new one. Problem is when I try to install programs, login and do other things it only accepts my old password. How can I change my password?
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Jul 29, 2010
one of the coolest features of Fedora imho is sandbox -X, which I used extensively in F12. However, in F13 I yum install /usr/sbin/seunshare prints:
Code:
[...]--> Processing Dependency: policycoreutils-python = 2.0.82-13.fc13 for package: policycoreutils-sandbox-2.0.82-13.fc13.x86_64
--> Finished Dependency Resolution
Error: Package: policycoreutils-sandbox-2.0.82-13.fc13.x86_64 (fedora)
Requires: policycoreutils-python = 2.0.82-13.fc13
[Code]....
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Nov 25, 2010
I use iptables firewall (v1.4.1) installed on FC8. I'm trying to limit the inflow traffic for the port 1723 to certain MAC addresses. To experiment with the mac option, I've written the following iptables rule:
Quote:
iptables -A INPUT -m -mac --mac-source 10:08:08:08:08:10 -j ACCEPT
It didn't work. It gave me this error message:
Quote:
iptables v1.4.1: Couldn't load match `-mac':/usr/local/libexec/xtables/libipt_-mac.so: cannot open shared object file: No such file or directory
Try `iptables -h' or 'iptables --help' for more information. Does that mean the mac module wasn't installed/enabled?
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Mar 13, 2010
A lot of times when I start up my computer, instead of the graphical login screen I'm brought to a CLI login. If I log in and do "startx," it'll start KDE, but sound doesn't work and the shutdown/restart options disappear. (The logout option is still there.) It's inconsistent; sometimes it'll start the GUI and sometimes it won't. I have yet to find out what causes it to work right and what causes it to bring me to the CLI. When it doesn't work, if I run "shutdown -r now" or "shutdown -h now," it'll start the GUI as the computer is shutting down. I've tried Ctrl+Alt+F7 when it's brought me to the CLI, but it didn't do anything
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Oct 2, 2010
Despite setting up wireless at home very easily, I find it difficult to set up when in a internet cafe. Using manage connections I have tried to add and scan but it does not find wireless lan, when I know the lan is present.Wireless is enabled but am I missing a step
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Jan 10, 2011
I am trying to install a proxy on my Kubuntu 10.10, since I live in a country that blocks access to almost everything. I tried to install squid, anon, socks.. both with command-line and KPackageKit, but every time, I have this error message:
[code]...
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Feb 26, 2011
I have an Apple iBook (ancient I know) and whenever I boot from the Live CD (Kubuntu 10.10) it boots up in 800x600 (as far as I can tell that's what it is). This would be a problem however it simplely leaves a huge black column on the right side and has a partially duplicated desktop below it.
When I go to display settings it won't let me change to a higher resolution (1024x768 is what the iBook natively runs at).
This is an iBook G3.
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Aug 19, 2009
i have an Acer Aspire laptop, 4GB of ram, with Vista and Kubuntu installed (dual boot). When checking my computer properties in Windows, it does say that i have 4GB, but Kubuntu's system monitor says that i have only 2.9GB.
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Jan 27, 2011
i have openssh on my box with kubuntu 10.10, i didn't install it and would like to know it's purpose being on here
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Feb 21, 2011
After discovering that the firewall was wide open I decided to finally study the iptables docs and learn how to add rules. Now, I've not yet finished reading guides and documentation but I'd like some advice before I set the default policy on the input chain to deny. I have added a permissive rule for the loopback adapter so that programs that use it do not become mute suddenly. I will also use netstat to see what ports to open for each program that connects to the internet. I'm not that interested in what ports to open but how to find what ports to open.
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Oct 8, 2010
I ran Kubuntu 10.4 from the Live CD and from the start The screen was automatically set to be as dim as possible, but in the power manager the brightness is set to be as bright as possible. Moving around the slider doesn't do nothing, and when I click the battery icon in the tray, it shows another brightness slider that's set to dim as possible, when I move it around it has no effect and just goes back to where it was when I close the popup window. Right now I'm running from the livedisk on an IBM T42 thinkpad laptop.How do I fix this, is it a hardware issue, I've had problems with my graphics card in the past with compositing in X/Ubuntu.I've found some text files for the backlight, they're all set to 0 which I believe is the problem, however even though I'm running the File Manager as root with kdesudo and the permissions are set to read and write for the owner, who is root, I can't save any changes.
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Aug 12, 2010
In earlier versions of (K)ubuntu, I have used SCIM and the Yawerty input method to input Russian with a phonetic Latin keyboard.SCIM does not seem to work with Kubuntu 10.04, and UIM does not have (as far as I can tell from searching the repositories) Russian input.The Russian keyboard layout installable in Kubuntu is in the Russian version of the layout, rather than a phonetic Latin layout; I am not familiar with the normal Russian layout and I do not have stickers to stick on the keys to guide myself in using that layout.
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Apr 4, 2011
i cant get minecraft to work on kubuntu i found a thread that helped install a different java but i am unable to complete the install because i can not press ok for some reason.
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Jun 25, 2011
Well I'm kinda a paranoid person, and got bored and ran a port scan from 0 to 500000 and turned up some interesting results, I was wondering how I find the programs tied to each open port. Its my computer and I'd like to very well know what programs are needing these ports and for what usage.
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Mar 22, 2011
When I google this I get a million results, most of which are either too in-depth to be practical or advertisements for one solution or another. Is there a general guideline for hardening a linux (kubuntu) system? A set of steps say, to close all ports and disable all listening services like you would do to a windows machine? I can hardly believe that there are NO vulnerable points of attack on a default kubuntu 10.10 install. I don't know very much right now so I'm looking for something to fill in the gaps and translate my knowledge of windows (in)security into a holistic view of how the penguin operates.
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May 2, 2010
I was trying to install packages from the Kubuntu CD to get the Broadcom driver installed but when it tried to load any of the packages on the CD it said they couldn't be found. I ultimately ended up copying the packages from the CD and installing the packages and their dependencies by hand through the console.
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Jun 25, 2011
I have a problem with a new mouse that I just bought. I cannot get my new Cyborg R.A.T 3 mouse to run under kubuntu. I am able to control the cursor and click on items that appear in it's immediate window. Example: I can click K start icon, but I can't interact with the actual start menu once I've opened it.
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Sep 1, 2011
I'm using 'Adobe Flash plug-in 10.3.183.4ubuntu0.11.04.1', installed from the package repos on kubuntu, and since the last update, it has broken all flash functionality in both rekonq and firefox.I have tried removing and reinstalling the package multiple times, both with and without the browsers open. Can anyone suggest a way to restoring functionality?
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Jan 20, 2009
I am trying to boot kubutu from FC10's grub. FC10 is in MBR, installed kubuntu without grub. Is that a problem for me now? I mean, should I need to install kubutu grub in order to boot from FC10 grub? I tried with these methods but nothing works:
title Kubuntu 8.10 Linux
chainloader +1
title Kubuntu 8.10 Linux
[code]....
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Mar 29, 2010
I was trying to setup gogui to work on kubuntu, using instructions found on an ubuntu forum: [URL]. I did not even have Java installed yet, so I first tried installing some of the sun-java6 packages. Usually kpackage is good at picking dependent packages and installing them also, but apparently not this time. Next time I tried using kpackage, I was not able to do anything. It gave me a message saying I had broken dependencies, and should use synaptic or aptitude. I do not even have these installed! I think that un-installing the Java software and starting over should do the trick, but I'm not sure how to do this from the command line. Also the instructions in the link above never worked for me.
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Jun 8, 2010
On kubuntu 9.10 my sound was working fine. less than a week ago i upgraded to kubuntu 10.04.After the upgrade the sound did not work at all. i made sure that my volume was turned up and that my volume was not on mute. so far i have gotten no sound on 10.04
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Jun 23, 2010
So I wanna try out xbuntu and kubuntu but will software that says it will install on ubuntu will it install on the others too just as easy? On a side note are there any distros that will be more windows like? where i can install stuff using an exe? I'm horrible with this command line thing. It dont even have to install with exe just as long as it will install without me having to use the command line prompt thing.
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Feb 17, 2011
how to make creative web cam working with ubuntu
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