Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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L2tpIPsecVpnControlDaemon critical error

I am currently trying to use l2tp-ipsec-vpn in my ubuntu machine. I followed a guide from tuxfamily to install it. Unfortanely, when I start the system, I got a window with the following error: A ...
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0answers
13 views

Docker - expose port to 1 particular host

We currently have a network consisting of 2 servers (mongodb and backend, from here on). All of them run Ubuntu 14.04 Previously we just ran both on the same server but we want to expand. We already ...
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1answer
18 views

Have I missed anything? user1 is not in the sudoers file [duplicate]

I've created a user on a server where there was only root as: # adduser user1 with a password. Then # su - user1 And then: $ apt-get update E: Could not open lock file /var/lib/apt/lists/lock - ...
0
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1answer
26 views

Windows and Debian dual boot menu order?

I have debian(elementary os) and windows installed on my lap. In the boot menu, every time I'm getting debian os first and it will automatically load after 5 seconds. How can I change the order to ...
1
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0answers
37 views

get file system shares working with virt-manager 1.3.2 in ubuntu 16.04 LTS

I have tried numerous things, and read numerous articles, but I'm not able to get file-system shares to work. Here is my setup: host machine: Ubuntu 16.04 LTS with KVM and virt-manager 1.3.2 ...
2
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1answer
34 views

Is it possible to create a mdadm RAID10 with both near and far layout options?

How do you create a mdadm RAID10 with both near and far layout options? The wiki indicates it is doable. The "near" and "far" options can be used together... The man pages for mdadm don't ...
1
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1answer
535 views

No DNS resolution after upgrade from ubuntu 14.04 to 16.04

I upgraded ubuntu 14.04 to ubuntu 16.04 and I have a problem with the internet connection. Specifically, DNS after update stopped working. For debugging purposes I set the only DNS 8.8.8.8, but name ...
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0answers
40 views

No internet connection after update from ubuntu 14.04 to 16.04 [duplicate]

Is there anyone who may help me with the following problem? I upgraded ubuntu 14.04 to ubuntu 16.04 and I have problem with the internet connection. Secifically, DNS after update stopped working, I ...
1
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1answer
45 views

Getting Ubuntu to Recognize USB Wifi

So, I'm really new to Linux systems and have just downloaded Ubuntu on my other desktop. The problem I'm having is getting it to recognize the USB wifi, TP-Link AC600 Archer T2UH. I went to the ...
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1answer
400 views

How to install Octave without GUI in Ubuntu 16.04?

I am really angry. Just installed the new ubuntu and run apt-get install octave. I got tons of crap installed (like Java, some QT libraries, and other pollution). How can I install Octave in Ubuntu ...
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0answers
22 views

Cinnamon DE - View all global key bindings?

I'm using Cinnamon 2.8.6 on Ubuntu 16.04. How do I identify which process is grabbing a hotkey or combination shortcut? I tried How do I find out what program 'owns' a hotkey?. However, ...
1
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1answer
24 views

Music Player Daemon MPD - Lagging HTTP stream

HTTP stream from my MPD lags, i.e. audio from Pulse and HTTP output are not in sync, with HTTP output lagging Pulse. This also means that starting/pausing/stopping music from MPD is not reflected ...
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0answers
22 views

I'm able Start Service With init.d script, however doing service <service name> start does not work

I'm able to start a service with an init.d script, however doing service <service name> start does not work. For e.g. /etc/init.d/haskal start, the service is starting fine and service haskal ...
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0answers
15 views

Qemu/KVM, windows guest password prompt

Ubuntu 16.04 Qemu/KVM Windows 8.1 guest SSH from remote host into hypervisor, run virt-manager. Get prompted for creds: user1@hypervisor, authenticate successfully. Open guest, get prompted for ...
2
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0answers
21 views

what is difference between .deb pakage file and ddeb pakage file in linux

I need to install SystemTap in Ubuntu 14 and i would need to install debug symbols for kernel i encountered ddeb file how i could uninstall this file after installation ? i got ERROR: Build-id ...
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0answers
15 views

Permanent shrill sound on ubuntu since buggy vlc video

A video with a buggy, or at least too complex soundtrack broke my Intel Ivy Bridge (i5-3337U) laptop running Ubuntu 15.10. In the middle of VLC playing the video, a shrill, slightly grating sound ...
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2answers
100 views

Ubuntu 16.04, drive path changed on its own [duplicate]

So yesterday I had a grub issue that required me to comment out the other two drive sin my fstab that get mounted. 1. an ssd that houses my qcow2 vm. 2. a 1tb seagate So all I had listed was / and ...
0
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1answer
44 views

Designing a new Operation System

I want to design a new OS to learn more about how an OS works. This OS is only for educational purpose and I had a few doubts choosing its kernel. Is there any legal issue for using an Ubuntu ...
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0answers
45 views

Qemu/KVM assign usb input devices to VM

So I have an Ubuntu 16.04 host running Qemu/KVM and a Windows 8.1 guest. I have successfully gotten the guest to use both a dedicated video card and dedicate monitor.. however I cannot figure out the ...
1
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0answers
41 views

How to use xpra like xvfb-run?

xvfb-run allows me to open a display and run a graphical app and when the app finishes xvfb closes too. for example xvfb-run --auto-servernum --server-args="-screen 0, 1920x1080x24" nw script.js ...
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0answers
36 views

cat tty freezes the system while I can observe tty through screen

So I have been subject to this weird behaviour. A few days ago I could read my GPS data on Beaglebone Black (latest Debian) on ttyO4 using cat /dev/ttyO4 But since yesterday whenever I try this ...
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1answer
22 views

What is the problem with the option name in Ubuntu?

oneimage create --name "ubuntu 14.04" \ --path "http://releases.ubuntu.com/14.04/ubuntu-14.04.4-server-amd64.iso" \ --driver qcow2 \ --datastore default I am getting invalid option for --name. I am ...
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2answers
434 views

Ubuntu 16.04 Emergency boot mode

So this rigs been running fine for a week now, (fresh build, new mobo/ram/cpu/hdds/etc) Anyway last night I remotely rebooted this machine then I came in today to be greeted by an Emergency Mode boot. ...
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0answers
65 views

“No space left on device” when trying to copy small folder to an external drive with alot of free space

I have an Hitachi XL1000 1TB external drive. It shows around 300GB of free space, either via the file explorer properties or via df command. But I get an "Error creating directory: No space left on ...
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1answer
54 views

Ubuntu 14.04, computer freezing

I have a problem with my netbook, it freezes frequently at random. Then it makes crunching noises and nothing helps except pressing the power button. It happens every 1-2 hours or so, during me ...
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0answers
41 views

Trouble Boot repair

I had a problem with my grub, it didn't recognize my OS, I have installed windows, ubuntu and kali. I tried to use Boot repair in a ubuntu live cd as sudo chroot "/mnt/boot-sav/sda10" apt-get purge ...
7
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3answers
333 views

GRUB confuses kernels/initramfs of Ubuntu and Arch Linux installation

I have a machine that used to dual-boot Ubuntu (16.04 currently) and Windows 7, with Ubuntu's GRUB as boot loader. Now I just added Arch Linux as third OS, following the official installation ...
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0answers
30 views

Puppet managed home directory

We use puppet to manage users in our production ubuntu servers and user home directory is managed by puppet. Until recently puppet was not removing the user home directory when an user is ensured ...
0
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1answer
89 views

Why can't I click between windows after Xenial (16.04) update?

I recently updated to Ubuntu 16.04 Xenial, and since then, I have been unable to click between windows. For example, I have a Chrome window up, open Sublime Text, and try to click Sublime (or Chrome) ...
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votes
1answer
34 views

can anyone assist me in what this code does? [closed]

I don't know what this code does i am using this forum to assist my learning. for i in $ ( ls ) do [ -r $i ] && more $i done I am stuck with this code i am only learning.
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1answer
39 views

trying to learn unix stuck on this question [closed]

Write a script which will request a user to type in an integer and then guess its square. The script will then either congratulate the user or inform the user what the correct answer is
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0answers
19 views

Remove devstack dependencies Ununtu 14.04 (32 Bit Dell Lattitude 5500)

I installed devstack in my old laptop. After installation when I try to access OpenStack, my laptop became very slow. Then I realized, that laptop had only 2 GB RAM. I ran unstack.sh and delete ...
0
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1answer
28 views

How can I share an internal disk via NFS? (What am I doing wrong?)

I have an NFS server (machine A) that mounts a 4TB internal hard drive at /data/Storage, and exports /data to client (Machine B). If I put a regular file in MachineA:/data, you can see it in ...
2
votes
2answers
61 views

Shrinking Raspberry Pi SD .img via Ubuntu Server (cli)

I installed Raspbian to a 16 GB card and expanded the filesystem. When I made a dd backup of the card, the .img file output was ~16 GB. Most of it is unused space in the ext4 partition—I'm only using ...
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0answers
11 views

How to monitor Java JRE 8 on Zabbix via JMX technology?

How to monitor Java JRE 8 that is running on Tomcat 8 via JMX technology? Server is running Ubuntu 14.04 LTS and the monitoring platform is Zabbix 2.2.
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0answers
58 views

Yet another fan control problem

I'm using a 32-bit Linux Mint Rosa 17.3 with MATE DE (for the record, the same issue exists on a 64-bit flavor as well, and I have had this issue with every ubuntu-based distro). It is installed on a ...
1
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1answer
128 views

Being Prompted for Password After Already Registered Public Key On server [closed]

NOTE: This is not a duplicate to the popular question. Why am I still getting a password prompt with ssh with public key authentication? I had an original post but I did not get much answers helping ...
2
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0answers
24 views

Can not seem to get the jp2 delegate to work in ImageMagick on Ubuntu 15.10

As the title says, I have tried to install the library on both 14.04 and 15.10. Every time I type in convert -version the delegates do not contain jp2000. I have installed libopenjpeg-dev and ...
4
votes
1answer
46 views

File permissions on Linux?

I am surprised that /mnt, /media or even /opt are not writable by myself on my own system (Linux-Ubuntu). Should I always use sudo for any action on these paths? Or would it be better to add myself ...
2
votes
1answer
28 views

File permissions while installing a python module

I would like to install sphinx-doc from the sources so I git clone the module then installed it with sudo python setup.py install. Using /usr/local/lib/python2.7/dist-packages/pytz-2016.4-py2.7.egg ...
0
votes
1answer
36 views

ZFS pool disappears when adding (enabling) disks to computer

I am adding disks to computer, not to ZFS pool. More spesifically, I disabled other disks, then installed ZFS and created the pool. Now, when I enable the non-pool disks, the ZFS pool disappears. ...
0
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0answers
17 views

How to add the Platform Type ARM for the latest Monodevelop, version 5.10, running on Ubuntu Linux 16.04?

I would like to add the Platform Type ARM for the latest Monodevelop, version 5.10, running on Ubuntu Linux 16.04 so we can compile for Mono version 4.2.1 C# and do embedded application development. ...
1
vote
1answer
48 views

/bin/bash No such file or directory Connection closed [closed]

I try to connect to a server using ssh (authentification is fine). I got this: /bin/bash: No such file or directory Connection to xxx closed. Before, everything is working fine, Until I have ...
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0answers
45 views

gvfs and permissions on a remote external usb drive

I have transmission and deluge (trying to see if it's a problem with the app) and I'm having the same problem with both of them. When torrenting. I get an error " Operation not supported ...
0
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1answer
42 views

Bridge 2 wifi connections

I have set up Ubuntu desktop on my laptop with an internal wifi card and an external USB WiFi dongle. Both WiFi interfaces work. I'd like to make one into an access point, and the other into the ...
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0answers
26 views

Unknown bridge gets recreated after reboot on Ubuntu 15.04@VMWare

I am running Ubuntu 15.04 on VMWare. For the last couple of days I have the issue that I have a "magic" network bridge: I never created this bridge and therefore I tried to delete it with the ...
1
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0answers
46 views

clang-tidy install

I have clang installed from packages on both Ubuntu 14.07, Centos 7 and Fedoara 22. I would like to use clang-tidy but can neither find a package nor how to install it without installing clang from ...
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0answers
36 views

Unable to use USB sound card with ALSA programming

I am trying to decode LTC data from an audio source coming to my USB sound card. For this I download sample program from this link. As jltcdump.c file use audio card 0 as defualt, so I make USB sound ...
0
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1answer
16 views

Ubuntu 15.10 Live CD login appears sporadically after I disconnect and reconnect the Internet carrier cable for the Lenovo Think Station

I would like to find out why the Ubuntu Linux 15.10 Live CD login appears sporadically after I disconnect and reconnect the COMCAST Internet carrier cable at the back of the Lenovo Think Station ...
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0answers
17 views

PHP does not use MySQL default sockets

I am having a hard time understanding why PHP cannot connect with localhost as a host. I can connect by doing: mysql -uroot -p And also, through Sequel Pro I can connect with localhost as a host. ...