Questions specific to the Debian official distribution (stable, testing, or unstable); if you are using a derivative of Debian (e.g. Mint, Ubuntu, Kali, etc), then use that distribution’s tag instead.

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30
votes
4answers
50k views

Why is Debian's root shell colorless?

Are there any security concerns? What is the best way to enable it?
18
votes
5answers
11k views

How to see package version without install?

I want to see the version of a package before I install it. How can I do this?
14
votes
3answers
100k views

Need to install glibc >= 2.14 on Wheezy

I am trying to get Protractor working for performing e2e angular testing, but protractor requires Selenium which requires ChromeDriver which requires glibc 2.14. My current development box is running ...
25
votes
3answers
41k views

Debian/Grub2: Moving root partition to new drive?

Does anybody have a suggestion for how to move the root partition to a new drive and set up grub2 to boot on that drive? I seem to have no luck instructing grub-mkconfig what it is I want to do (e.g. ...
9
votes
3answers
36k views

Why can't I run GUI apps from 'root': “No protocol specified”?

I installed debian onto my machine last night. Now, I don't understand why I can't run GUI apps from a terminal when running as root. For example: sudo -i glxgears Generates the following output: ...
8
votes
3answers
20k views

IPTables - Port to another ip & port (from the inside)

I currently have a NAS box running under port 80. To access the NAS from the outside, I mapped the port 8080 to port 80 on the NAS as follow: iptables -t nat -A PREROUTING -p tcp --dport 8080 -j DNAT ...
12
votes
5answers
9k views

What directories do I need to back up?

What are the directories one should back up, in order to have a backup of all user-generated files? From a vanilla debian install, I can do enough apt to get the packages that I want. So if I don't ...
11
votes
1answer
3k views

How to make dpkg faster?

Package (un)installation on a Debian system is horribly slow, partly because it works with a whole bunch of (small) files. Short of getting faster storage, how do I speed it up? I'm thinking maybe ...
10
votes
2answers
21k views

How to check on which drives grub2 has actually installed an MBR?

I'm on a Debian/Squeeze system (with a history going back to at least Woody) which was upgraded to grub2 as part of the Squeeze upgrade. All works well, but I'm about to mess with the disk ...
7
votes
2answers
51k views

How can I easily configure samba share in Debian Wheezy?

I have just installed a new Debian Wheezy and I am trying to create a new share. I am using KDE 4, and there in the folder preferences menu I found option to share the folder with Samba - it doesn't ...
28
votes
2answers
29k views

Is sudo not installed by default in Debian?

I was reading a guide to install some software and came reading until this shocking statement: sudo is not installed on Debian by default. Make sure your system is up-to-date and install it. As ...
11
votes
2answers
12k views

Is Grub installed to all the MBR of a RAID array by default by the Debian Installer?

If I use the Debian Stable (Squeeze) Installer to install Debian, booting from a RAID1 pair of drives, does it write grub to the MBR of both drives - if not, how should I best protect against a drive ...
8
votes
1answer
22k views

Unable to install ia32-libs in Debian Wheezy

I was trying to install ia32-libs in Debian Wheezy. I got the error The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-i386 but it is not installable E: Unable to correct ...
7
votes
4answers
7k views

Debian: Which firewall for a newbie?

I have to install a firewall on my server (so without X Server). It's a debian lenny. If it is possible, I want to avoid the use of iptables. Is there a way to install/configure a firewall for a ...
4
votes
2answers
7k views

Making ruby available to all users

I intend to use Ruby when programming my Raspberry Pi which is running the Debian based Occidentals. Via SSH, I executed: curl -L https://get.rvm.io | bash -s stable --ruby which downloaded the ...
26
votes
2answers
90k views

List of available services

Is there any command that would show all the available services in my wheezy Debian based OS? I know that in order to see all the running services you can use service --status-all.
13
votes
2answers
38k views

How to automatically mount an USB device on plugin-time on an already running system?

I know how to use /etc/fstab to automatically mount devices on boot or when doing sudo mount -a, which works perfectly fine. For example, here is my current line for my device UUID=B864-497A ...
12
votes
4answers
17k views

Uninstalling default VBoxGuestAdditions on Debian

When I ran sh /media/cdrom/VBoxLinuxAdditions.run I got the following warning message: You appear to have a version of the VBoxGuestAdditions software on your system which was installed from a ...
11
votes
4answers
6k views

Why there is no https transport for debian apt tool?

With all paranoia that has come with NSA revelations and everything, I'm wondering why debian package installation mechanism does not support HTTPS for its transport, let alone using it by default. I ...
10
votes
5answers
54k views

lvm devices under /dev/mapper missing

I'm using Debian squeeze, and running LVM on top of software RAID 1. I just accidentally just discovered that most of the links under /dev/mapper are missing, though my system seems to be still ...
20
votes
6answers
26k views

How to find which process is regularly writing to disk?

How can I find which process is constantly writing to disk? I like my workstation to be close to silent and I just build a new system (P8B75-M + Core i5 3450s -- the 's' because it has a lower max ...
18
votes
3answers
11k views

Will Debian Wheezy (stable) automatically upgrade to Jessie once Jessie becomes the stable release?

I am on Debian Wheezy (stable) and routinely update my system via the basic: sudo apt-get update sudo apt-get dist-upgrade In the future, once Jessie becomes the stable release, I wonder whether ...
11
votes
1answer
7k views

How to quickly create a local apt repository for random packages using a Debian based linux distribution?

Some situations call for manually installing a local package using dpkg -i <packagename>. Sometimes it may be further useful to leverage the functionality of apt with that package so the ...
10
votes
2answers
2k views

Why is it that my initrd only has one directory, namely, 'kernel'?

I'm using debian live-build to work on a bootable system. By the end of the process i get the typical files used to boot a live system: a squashfs file, some GRUB modules and config files, and an ...
9
votes
2answers
9k views

USB drive permissions when automounting

On Debian there is the common problem, that you try to plug an ntfs formatted USB harddrive and then can't write to it as a regular user to it because the directory belongs to root. A little time ago ...
9
votes
2answers
18k views

Why do iptables rules disappear when restarting my Debian system?

I add this rule: sudo iptables -t nat -A OUTPUT -d a.b.c.d -p tcp \ --dport 1723 -j DNAT --to-destination a.b.c.d:10000 When restart computer rules are deleted. Why? What I can do to make ...
9
votes
1answer
6k views

How to launch an application with default “terminal emulator” on Ubuntu?

I wanted to execute some command in terminal emulator, like Konsole, but I need to make this cross-desktop. Is there some command like xdg-open, but for getting the default terminal emulator? I'm ...
9
votes
4answers
10k views

Debian Testing or Debian Sid?

I'm currently downloading Debian 6 DVD. I don't want to use Stable, I want to use Testing or Sid, but I don't know wich one is better for me. Is Sid really unstable ? Is Testing up-to-date like Arch ...
7
votes
4answers
10k views

Help configuring a custom log file for iptables

I'm trying to log dropped packages to a custom file instead of /var/log/messages. To achieve this, I have added these two lines at the end of my configuration file: -A INPUT -m limit --limit ...
6
votes
2answers
2k views

Can I stop Linux from listening to a USB input device as a keyboard, but still capture events with a program?

I have a USB barcode scanner at /dev/input/event0 (/dev/input/by-id/usb-Metrologic_Metrologic_Scanner-event-kbd), and scanning a barcode causes it to send keypress events. I'm capturing these ...
6
votes
5answers
8k views

/etc/resolv.conf changes during reboot

My ISP asked me to use custom nameserver settings. I have placed these in /etc/resolv.conf. Unfortunately, every time I reboot the computer, the contents of this file is changed. To connect to the ...
5
votes
3answers
58k views

How to properly configure sudoers file, on debian wheezy?

I have seen many blog posts that say, it is enough to do aptitude install sudo su root adduser USERNAME sudo But that only protects aptitude, in other words: aptitude install sendmail will ask ...
5
votes
1answer
771 views

How do I set up the SELinux sandbox in Debian?

I've installed SELinux in Debian sid in order to use the sandbox that locks down apps to a restricted enviroment, but I can't get it to work. If I try to use the sandbox command in permissive mode ...
20
votes
3answers
9k views

How Debian package should create user accounts?

The package qqq.deb installs the program qqq that should run from uqqq user account. The package consist of the qqq program, qqq.conf config file and /etc/init.d/qqq initscript. How should the ...
16
votes
2answers
26k views

locale not found/setting locale failed - what should I do?

I've installed Debian 7 i386 on my VPS (OpenVZ). Everything works fine, except locales - any attempt to install anything shows: [...] perl: warning: Setting locale failed. perl: warning: Please check ...
16
votes
3answers
63k views

How to bring up a wi-fi interface from a command line?

I can't figure out how to properly bring up the wi-fi card on my laptop. When I turn it on and issue $ sudo iwconfig wlan0 txpower auto $ sudo iwlist wlan0 scan wlan0 Interface doesn't support ...
9
votes
1answer
36k views

Set persistent routing table on Debian

I have modified my routing table by deleting one rule, and adding two new rules for my second interface eth1: route del -net 10.1.2.0 netmask 255.255.255.0 route add -host 10.1.2.51 eth1 route add ...
8
votes
2answers
320 views

Re-installing apps after a fresh install?

I'm on Debian and I want to re-partition my drive and reinstall. Is there an easy way to restore all currently installed packages after a fresh installation? I'm thinking of doing it by making a ...
7
votes
2answers
6k views

How do I start Xvfb on startup on Debian?

I’ve got a Debian web server that I’m using for occasional screen-scraping via Selenum and Python. I use Xvfb as a virtual X server for Firefox to run on when being controlled by Selenium. Given that ...
6
votes
1answer
16k views

minimal X.org xserver installation on Debian Wheezy

I installed Debian Wheezy with no desktop environment as I would like to use lightweight dwm window manager instead. However, as a first step, I need to install xserver. I would like to install ...
6
votes
2answers
2k views

How to run a command after apt-get upgrade

Recently I came across the nice checkrestart tool, that checks if running processes use an outdated version of a recently updated library and would need a restart to load them with the updated lib. At ...
5
votes
3answers
1k views

How can I find the package that contains a program in Debian? [duplicate]

I am using a minimal Debian system which does not have the top program installed. I tried to install top with sudo apt-get install top, but top is not a package name. It seems that top is a part of ...
3
votes
1answer
374 views

How to convince APT that a cross-arch package is installed manually?

I have a qemu-armhf chroot environment on an amd64 machine (it's mainly for compiling Raspberry Pi code). As such it can run both armhf and amd64 binaries but it's faster doing the latter. There are ...
3
votes
1answer
6k views

How to change the default version of Python in Debian 7.5?

I'm using Debian 7.5, and I've installed Python 3.3 and 3.2. How do I make 3.3 the default for when someone types python in the command line?
3
votes
2answers
19k views

stop/start gui on debian

I would like to start Debian without the GUI and then just type commands in to launch the desired programs (which are located on my local machine), eg $ chromium-browser & I already do a ...
3
votes
2answers
15k views

Restarting Gnome 3 in Debian Wheezy?

What's the correct way to restart Gnome 3 (and Xorg) under Debian 7.0 Wheezy? I've seen older documentation on how to this, but it is outdated. The ctrl+alt+backspace shortcut no longer works by ...
2
votes
1answer
11k views

Installing debian 7 besides windows 8

I ask this question in superuser but no one can answer my question, I hope any one can help me: I bought a VAIO laptop which Windows 8 preinstalled on it in UEFI mode. Now I want to install Debian 7 ...
21
votes
3answers
1k views

Linux Debian codenames

I've got a few, quite silly, non-technical questions about giving codenames to Debian releases. Each Debian release has its unique codename, which is (so far) a characters' name from Toy Story movies ...
15
votes
4answers
2k views

TCP dies on a Linux laptop

Once in several days I have the following problem. My laptop (Debian testing) suddenly becomes unable to work with TCP connections to the internet. The following things continue working fine: UDP ...
15
votes
1answer
26k views

Installing Unity on Debian

I'm a former Ubuntu Unity user, and currently running Debian Squeeze. I love Debian's stability over Ubuntu, but I do miss being able to switch between applications use Super+1,2,3 etc. Has anyone ...