Debian GNU/Linux is a widespread Linux distribution focusing on stability, security, and the free software philosophy.

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3
votes
1answer
5k views

ffmpeg - Output file does not contain any stream

When I try to take Screenshots from an AVI file I get the above message with an empty jpg/png file. But Screenshots from MP4 files works with any problems. My OS is Debian. MP4 Command: ffmpeg -...
2
votes
2answers
595 views

How to take control back on a separate process in Linux shell?

I just set up a Minecraft server on my VPS for my brother and I ran it with a bash script : sh ./server.sh& This way, the server is running and I can still work on the same command line with ...
0
votes
1answer
13 views

vsftpd on raspberry pi doesn't chroot users

I'm attempting to run an FTP server on a raspberry pi, and after a lot of struggle I finally made it work, however for some reason the server doesn't place users into a chroot jail, and everyone can ...
3
votes
1answer
2k views

Automatic root login in Debian 8.0 (console only)

Is there any simple and straightforward way in which I can set my Debian 8.2 box to automatically login, at startup, with the root account on the console? There is no GUI installed on the machine. ...
0
votes
1answer
10 views

How to control scroll bar behavior in Cinnamon?

I'm running a Debian 8 machine. I believe its running Cinnamon as the window manager: $ wmctrl -m Name: Mutter (Muffin) Class: N/A PID: N/A Window manager's "showing the desktop" mode: N/A When a ...
0
votes
1answer
13 views

How to disable bottom “show-on-drag” menu in Gnome?

I'm not quite sure what the menu is called, but when I drag my mouse against the bottom of the screen in Gnome (1:3.14+3), a new menu appears. I do this by accident a lot and find it very annoying. ...
4
votes
3answers
2k views

How can I start new window in the same screen session automatically?

I read How can I start multiple screen sessions automatically?, but I don't understand the first accepted reply: screen -dmS "$SESSION_NAME" "$COMMAND" "$ARGUMENTS" In my case I need to ...
3
votes
2answers
2k views

How to use compcache for Linux 3.2 (Debian Wheezy)

How do I set up and configure compcache for Debian Wheezy (3.2 kernel). As far as I can understand compcache is now in the kernel and is not to be found in the debian repo either. Compcache should be ...
0
votes
0answers
19 views

How to install Debian package manager

I have a testing platform which has minimal Linux on it. It is so lightweight that it lacks all distribution-specific features. The goal is to install dpkg and apt-utils, which I did, by extracting ....
2
votes
2answers
2k views

xmonad on debian: how to change screen resolution

I've installed xmonad in a debian vmware vm on osx. In Gnome I changed the screen resolution to 1440/900 using the GUI menu but this change did not affect the resolution I get when I'm logged in with ...
0
votes
1answer
22 views

Is it possible to install virtualenv without python3 on debian?

I'm trying to install virtualenv without installing python3 on my debian jessie machine. I'm new to debian being a gentoo native. I'm trying to install virtualenv with: sudo apt-get install python-...
0
votes
0answers
6 views

Linux Bridge (vmbr) has no connection to physical NIC

I built myself a new home server and wanted to use Proxmox VE. Its Debian based and I have 3 KVM-machines running. Machine 1: "Sophos UTM" has WAN on vmbr0 and DMZ on vmbr1 (192.168.200.254) Machine 2:...
0
votes
0answers
11 views

Why does /dev/random on ubuntu generate data slower than on debian?

During test of a copy function I've copied data from /dev/random to /dev/null and measured the throughput. On my Debian testing machine, I'm getting about 200 kb/s consistently. On Ubuntu 14.04, ...
1
vote
1answer
373 views

Access denied error with svlogd

I've setup a debian wheezy server and I'm using runit to keep my services humming along. I've also configured svlogd, but that's where I'm getting problems. When the services start I run "ps aux" and ...
-1
votes
0answers
89 views

Linux alternative to Microsoft Continuum (Android/Debian vs. Ubuntu) [on hold]

There are two systems in the "opensource-world" to 'replace'/fit Microsofts Continuum (use of a handheld device as phone/desktop at the same time). MaruOS (currently available as CustomRom for mainly ...
0
votes
1answer
11 views

How to change from GNOME to MATE

I just installed Debian Testing (Stretch) on my computer, choosing both GNOME and MATE as possible desktop environments during the installation process. The thing is that GNOME shows up by default and ...
20
votes
7answers
52k views

How to install FFmpeg on Debian?

I would like to know how to install FFmpeg on Debian.
0
votes
0answers
250 views

Wifi on Raspberry Pi - Edimax ew-7811un

I can't make my wifi dongle work on Pi. Here is what netinfo.sh script shows (from PuTTY on my PC; Pi connected through ethernet cable to my router; wifi dongle is in Pi) : _____/boot/cmdline.txt ...
1
vote
1answer
22 views

How to drop privileges in a Debian Chroot?

I'm testing some software under Debian X32. Its a chroot environment, and its entered upon as root. Some of the tests are failing because of the root account: make test ... # Failed test 'Testing ...
0
votes
1answer
4k views

Checkpoint VPN client not connecting, Debian Wheezy

Edit: what I'm looking for here is help finding out what's going on at the OS level, so that I can find out for sure whether the problem is on my end or my workplace's end, or in between. I'm not ...
2
votes
0answers
18 views

DISPLAY environment variable is always 0

I have two monitors attached to the same desktop computer. However, when I do echo $DISPLAY, it prints :0.0 on both screens. Shouldn't echo $DIPLAY print :0.1 from one of the screens?
1
vote
1answer
16 views

How to install Ruby 2.1 from package on Debian Jessie?

I'm trying to install Ruby 2.1 on Debian Jessie. As far as I know, 2.1 is the default version available to Debian Jessie. I ran sudo apt-get install ruby-dev and it seemed to install everything ...
1
vote
0answers
20 views

Debian - more network interfaces [duplicate]

I have dedicated server from OVH with additional ipv4, I have added the IP to the system interface configuration (debian), I can access the machine from both IPs now, but for some reason the first ...
78
votes
12answers
119k views

How can I produce high CPU load on a Linux server?

I’m currently in the process of debugging a Cacti installation and want to create CPU load to debug my CPU utilization graphs. I tried to simply run cat /dev/zero > /dev/null, which works great ...
0
votes
1answer
14 views

Getting `-bash: ufw: command not found` error on debian

I am unable to run any command on debian, I am getting the above error. Though when I use sudo same commands works. Can someone please explain this behavior?
22
votes
7answers
65k views

Unable to install VIrtualbox, `“Specify KERN_DIR=<directory>”` — installing Virtual Box to Debian?

I am getting this error: Makefile:181: *** Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR= and run Make again. Stop. Basically I'm doing: $ sudo /etc/init.d/...
1
vote
0answers
27 views

Shockingly slow SSD reads on Debian Jessie

I set up a desktop computer after nine months in the attic. I somehow doubt this is related but I don't remember it being this way. It took six minutes or so to boot, another couple minutes for GUI ...
3
votes
4answers
7k views

Intel HD graphics 4400 not working properly on Wheezy

Upon login, I get the following message: GNOME 3 Failed to Load Unfortunately GNOME 3 failed to start properly and started in the fallback mode. This most likely means your system (...
15
votes
4answers
23k views

How to read email received on a Debian server

I have a VPS (virtual private server) running Debian Linux. When I login using PuTTY the console shows - "You have mail" I have no idea on how to retrieve this email. Which software do I need to ...
6
votes
1answer
4k views

What is the correct way to install linux on a Macbook Pro

I've had a lot of trouble doing this. It always is unable to boot after installation (I get the famous question-mark in a folder thing). I've installed http://www.rodsbooks.com/refind/ however after ...
0
votes
1answer
19 views

Rsyslogd Log entry about attack created by unknown application

I have a server running for testing purposes which lately caught some strange log entries in /var/log/syslog, /var/log/user.log and /var/log/messages. auth.log does not show anything suspicious. No (...
0
votes
1answer
21 views

Why BOOT MENU doesn't read USB?

I've a LENOVO G50. I'd ubuntu but I would install debian from USB. So, I'd run usb with debian iso etc. but didn't run. So, I'd try with Elementary but I don't liked it. So, I tried Kali Linux in USB ...
0
votes
4answers
11k views

mounting nfs gives “access denied by server while mounting (null)”

I've recently upgraded one of our machines to debian Squeeze from lenny. Previously, these machines mounted 2 NFS shares /home and /home/scans/data After the upgrade they can only mount one at a time....
0
votes
0answers
13 views

Running a program out of tmpfs

I ask this question out of interest. I have linux installed (Debian) and I created a tmpfs partition in RAM for some temporary stuff, see here. So far so good. When I put images or text in there and ...
0
votes
2answers
165 views

Getting molly-guard to work with sudo

The program molly-guard is a brilliant little tool which will prompt you for a piece of information before you reboot or shut down a system. Usually it asks for the hostname. So when you work a lot ...
0
votes
1answer
21 views

Apache SSL error: Re-negotiation handshake failed: Not accepted by client?

I protect my wordpress administration by a client certificate. I had a trouble in march after upgrading from Wheezy to Jessie but it has been solved and everything ran well until my letsencrypt ...
18
votes
4answers
25k views

Using multiple USB webcams in Linux

Running more than one USB webcam in Debian/Linux results in the the following error: libv4l2: error turning on stream: No space left on device VIDIOC_STREAMON: No space left on device What ...
0
votes
0answers
21 views

Unable to boot on Debian Live CD on my HP Laptop - “Selected boot image did not authenticate”

I'm trying to boot from a Debian Live CD (the debian-8.5.0-amd64-DVD-1.iso available here: http://cdimage.debian.org/debian-cd/8.5.0/amd64/bt-dvd/). It doesn't work when I just let the computer start ...
0
votes
2answers
49 views

Wired connection taking precedence of wireless

I have wired together two Linux machines. One machine has a wireless connection to my router whilst the other machine does not. The machine without wireless access (PC1) is configured such that it has ...
2
votes
2answers
2k views

How to kill a continuous process started from rc.local?

I'm working on a Raspberry Pi with Raspbian (Debian-based) OS. For testing I added such a command in /etc/rc.local: python /home/pi/test.py It works fine starting this script. But the problem is ...
0
votes
1answer
21 views

Block common dos attacks

I have been searching for some basic IPTABLES protection agains Syn attacks and floods I have found thise commands: iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP //syn protect ...
0
votes
2answers
4k views

Touchpad not detected in Kali Linux

Running a Dell 3147 11 inch 2 in 1 with Kali installed on the ssd, it doesn't detect the touchpad. I looked under xinput and it doesn't show up. I've tried this: https://wiki.debian.org/...
1
vote
1answer
3k views

OpenVPN on Debian 6 failed to start

I configured openvpn on my Deabian 6 VPS (using OpenVZ) several times but always stuck on "Starting virtual private network daemon: client server failed!" The syslog indicates, that there seems to be ...
31
votes
8answers
109k views

How to install Debian from a USB drive?

I've got a shining new x64 laptop running Windows 7 and I want to dual boot Debian stable. I've installed Ubuntu on loads of laptops in the past using a USB drive, but I can't find decent ...
0
votes
1answer
580 views

Can Linux be installed successfully on an intel atom D2500/GMA3600?

I'm triyng to install debian on an intel D2500HN motherboard that features the GMA3600 Power VR video chip. I tested various versions, 32 and 64 bit but the result is always the same: an artifact ...
1
vote
2answers
9k views

Debian wheezy Xorg configuration fails, Debian don't boot

I have installed Debian Wheezy today. when i boot Debian wheezy when splash logo about to open, the screen blanks and system hangs, but Debian stable was booted without errors, but I changed init ...
1
vote
1answer
24 views

GNU screen is displayed differently on different machines

I am running $ screen --version Screen version 4.03.01 (GNU) 28-Jun-15 on Debian Jessie via SSH. If I create a screen from a machine running Gentoo and then use it from there, Unicode characters (...
1
vote
1answer
73 views

Recover luks partition for /home after system erase - cant mount /dev/mapper/MyDevice

I looked on a lot of places and cant find what to do now. I had encrypted /home on 2nd hard drive. I had to format my debian and now want to access my data. sudo fdisk -l /dev/sda1 * 2048 ...
3
votes
2answers
26 views

root crontab not executing

I'm setting up my Debian server to backup my databases with crontab, the mysqldump utility and gunzip. For some reason, my crontab lines appear to fail, especially the crucial one: 15 2 * * * /usr/...
0
votes
3answers
10k views

Autostart programs/scripts in Debian 8 Jessie

I have a scipt (.sh) for screen rotation of my thinkpad on linux. I have now installed Debian 8 Jessie and the "Startup Applications" is no longer there, how can I make it to startup on boot? or user ...