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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2
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0answers
16 views

SEC_ERROR_UNKNOWN_ISSUER particular website

I am a relatively new user to linux (< 3 years) and am having this issue on a MacBook Air running Ubuntu Mate with Firefox. Fortunately the IT helpdesk at my university is incredibly helpful and ...
1
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0answers
25 views

Different system commands show different DNS servers

I have set-up my DNS servers in my Network Manageras the following: 208.67.222.123 208.67.222.220 208.67.220.220 Yet I get different responses when I try different commands (taken from online ...
5
votes
1answer
39 views

The user x cannot use this program (crontab)

Ubuntu 14.04 I don't understand the behaviour I'm seeing with setting up crontab for a service (no login) account (named curator). When I'm logged in as root, this is what I get: # crontab -u ...
0
votes
1answer
24 views

How to recover a clobbered LD_LIBRARY_PATH on Ubuntu Linux 16.04?

I would like to find out how to recover a clobbered LD_LIBRARY_PATH on Ubuntu Linux 16.04. I clobbbered it a few days ago by setting the global environment variable LD_LIBRARY_PATH to /home/frankc/...
-2
votes
0answers
25 views

Good Software center for linux? [on hold]

I need a good software center for linux that a I can install/update/remove apps from it I have used ubuntu software center and deepin.. this one https://www.sendspace.com/file/f1ihki is good also but ...
1
vote
0answers
11 views

vmlinuz <-> uImage

I would like to ask if I can make a regular kernel build with cross compiler (make uImage), and then move it into ubuntu machine (replacing vmlinuz in some way). This is can save me a lot of time, ...
0
votes
0answers
12 views

USB 3.0 camera recognized under the live boot (try Ubuntu) but not from HDD

Note: I asked the same question on Ask ubuntu USB 3.0 camera recognized under the live boot (try Ubuntu) but not from HDD if any one think that it should be only in one site please let me know. I ...
0
votes
0answers
28 views

Ubuntu theme gone wrong (Macbuntu 16.04)

So I recently downloaded ubuntu to do a dual boot with windows 8.1. Everything went perfectly fine, smooth as butter. The I went to set up ubuntu to my personal liking, which happens to be the OSX ...
0
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0answers
10 views

Openvas 9 TLS Error in the push function

Im trying to install Openvas 9 on my Ubuntu 14.04 laptop. I have tried many times to install it but the NVT database never rebuilds. Everything was promising on Openvas 9 until this happened. base ...
-1
votes
0answers
13 views

Ubuntu 16 crashes intermittently. Nvidia drivers installed successfully [on hold]

I have Ubuntu 16 on a dual core processor with 2gb ram. I have been using it for last two days. It freezes intermittently. Totally unresponsive. No errors visible in the system logs. Please help
0
votes
0answers
17 views

Screen resolution is wrong in Ubuntu

I have installed Ubuntu 15.10 on my HP Spectre 360 laptop, which has screen resolution 3840 x 2160. By default, everything on my screen is tiny: mouse pointer, toolbars etc.. I have changed the ...
3
votes
1answer
24 views

Can't ping host from router, but both router interfaces from host

I'm trying to set up Ubuntu Server 16.04 as a router just to figure out how this works and maybe build a home server/router down the line sometime. Problem is, I can't seem to get it to work, not sure ...
0
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0answers
21 views

SSH path clutter [duplicate]

When using SSH, my path seems to contain all sorts of additional, strangely formatted info. This started happening a while ago, I'm not sure if any software updates caused it. How do I get rid of this ...
0
votes
1answer
40 views

Problems with new Ubuntu installation

I recently bought a new HP Spectre x360 laptop and installed Linux (Ubuntu 16.04 LTS 64 bit) for the first time. I am seeing various bugs. I don't know if the problems are due to: (a) Hardware ...
2
votes
0answers
16 views

“No protocol specified” when starting Xorg via lightdm, but works when started directly

To start the X server on boot, use of a display manager such as lightdm seems to be the preferred method. However, if I start X by starting the lightdm service, I get a "No protocol specified" error. ...
0
votes
1answer
13 views

Dropped in (initramfs) after installing Zorin OS 11

I am trying to install Zorin OS on Fujitsu Lifebook AH530. The installation runs smoothly, but when system reboots, it drops into (initramfs) shell, with the message: ALERT~ /dev/disk/by-uuid/.... ...
1
vote
0answers
33 views

Random URL's in access.log

My server recently started getting a massive increase in the number of random URL requests. 124.173.67.77 - - [23/Jul/2016:21:21:04 -0400] "GET http://www.059boss.com/index.php HTTP/1.1" 200 12040 "...
1
vote
3answers
48 views

Run application built on Ubuntu on CentOS

Is there a way to deploy an application, that you built on Ubuntu, on CentOS? And if so, how? EDIT: Sorry, I should have given some more info. It's built on Ubuntu 15.10 with Qt 5.6, and besides Qt ...
0
votes
0answers
37 views

How to Study Effect of zram on Memory Size and Paging?

Situation: to study the effect of zram's virtual memory compression (wiki) on memory's size and its speed; when swap is not on HDD/SSD; use zswap if you want to have swap on HDD/SSD Motivation: I ...
1
vote
1answer
14 views

Preparing a Ubuntu install for sharing

I have a virtual version of Ubuntu running in VirtualBox. Currently I have lots of personal information in it. I want to share the virtual image disk with other developers, but I don't want them to be ...
0
votes
0answers
18 views

How do I make login screen appear after plymouth has finished?

Firstly I am running Kubuntu 16.04 and whilst I know there is an "Ask Ubuntu" instance of SE I suspect this might not be something purely for the Ubunutu family and therefore of more benefit to the ...
1
vote
0answers
21 views

Linux-PAM can't use custom PAM module - possibly related to multiarch

I've built a simple, custom, PAM module and the module works as expected with pamtester and with some other pam testing code I found online. I've also built a simple dotnet core application which ...
1
vote
1answer
28 views

Changing Linux Distro in Dual Boot (Win10, Manjaro(Arch))

First of all I'm very new in the linux world so please be as tolerant as you could. I try to be as clear as I could in order to explain my question. My problem: I had 2 OS with dual boot in my ...
0
votes
0answers
21 views

What to do when i cant find mon0?

root@ubuntu:~# airmon-ng Interface Chipset Driver root@ubuntu:~# airodump-ng mon0 Interface mon0: ioctl(SIOCGIFINDEX) failed: No such device root@ubuntu:~#
0
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0answers
18 views

Connect Ubuntu to owncloud with webdav

I am trying to mount my ownCloud drive on my ubuntu instance hosted on AWS. As part of the tutorial I directs me to adjust my fstab entry. I want this to "auto mount" so my entry in fstab looks like ...
0
votes
0answers
14 views

Error while starting a LXC container

I am facing error while attempting to start a lxc container. I am using LXD btw. The error that i face is : ubuntu@ubuntu-blade1:~$ sudo lxc start test error: Error calling 'lxd forkstart test /var/...
0
votes
0answers
20 views

Installing kodi gives me the following error

Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or ...
1
vote
1answer
22 views

How can I mount /usr on another partition but use a folder called /usr on that partition instead of using / as /usr?

Somewhat along the lines of this question, How to mount multiple directories on the same partition? but my situation is different. I have a 2 small partitions that I'm using for two variants of ...
-1
votes
0answers
11 views

Xubuntu: logout using dbus

I'm new with Xubuntu and I have question. I'm logged in as user A, create a process in the name of B, that process creates session(/etc/X11/Xsession default) for user B. I want to terminate a session ...
0
votes
1answer
37 views

Unable to login with static port on xrdp

I have installed xrdp on a Ubuntu mate 16.04 PC and set up xrdp on it. I would like to set a static port so that same session is always opened. But for some reason when I set a static port remote ...
2
votes
1answer
29 views

Create LXD containers on machine with no internet connection

Server: Ubuntu 16.04 Server, x64, no internet connection I have LXD installed but am having trouble getting an image to that server to use as a baseline for containers. I have tried two options so ...
0
votes
2answers
40 views

Unable to clone git repository on ubuntu [closed]

While cloning git repository I am getting the following error Failed to connect to github.com port 443:Network is ureachable while I am able to clone on my windows machine Edited- git clone https:/...
0
votes
0answers
11 views

Unknown symbol usb_register_driver and usbderegister when inserting the kernel module without GPL licensing

I am a newbie to linux kernel modules. I have written a simple usb driver. The problem that I am facing is when I try to add module to the kernel I get the error "unknown symbol in module". in "...
0
votes
3answers
59 views

Is it a good practice to copy Go's binary distribution into `/usr/local/`? [closed]

From Go's install webpage, Download the archive and extract it into /usr/local, creating a Go tree in /usr/local/go. For example: tar -C /usr/local -xzf go$VERSION.$OS-$ARCH.tar.gz ...
0
votes
1answer
17 views

VirtualBox Host - Ram Question - Mem Free Vs Mem Available - Possible Mem Leak?

I'm wondering if our system has lots of free RAM, or if its almost out. I read here regarding MemAvailable but I am wondering how it applies to VirtualBox as I am sure thats the reason the numbers I ...
0
votes
1answer
28 views

how to make my dns server public?

i'm trying to make a public DNS server , my DNS server works only on my internal network but when i try to 'nslookup example.com myDNSserverIP(public ip)' it fails i'm running it on ubuntu 15.10-...
0
votes
1answer
16 views

lxsession-logout vs lxde-logout

I'm new with lxde, I installed it on ubuntu 14.04 using sudo apt-get install lxde. But the problem I have is that I want to logout without a prompt. I've read some articles about this and they ...
0
votes
1answer
24 views

ubuntu 15.04 user experience with printer problems and suggestions for better printers [closed]

Change Title to: "I have a Canon MG3500 printer which SEEMS incompatible with Ubuntu 15.04 and LinuxMint-17, Anybody have workaround suggestions." ------------< title change above >--------...
1
vote
1answer
31 views

Bash scripting [keyboard input needed] [duplicate]

I'm new in Linux and I'm trying to make my first bash script to improve my work at college. Im working with a software called GROMACS and I'm trying to make a script to perfom a bunch of codes at the ...
0
votes
0answers
31 views

Unknown runlevel on Ubuntu 14.04, services not starting on boot

I rent a VPS from a VPS company and run an Ubuntu 14.04 web server there. Recently it had to be suspended by my provider for a while. After the suspension period (1-2 days), the VPS boots, but cannot ...
2
votes
0answers
42 views

Change resolution of text console

I bought an xps laptop with a 4k screen. Because of this, the font-size of my text consoles (Ctrl+Alt+[F1-F6]) are quite tiny. So I tried to change the resolution by editing /etc/default/grub like it ...
0
votes
1answer
28 views

Launching graphical application from tty to improve performance

Would there be any performance increase by opening a tty terminal and exec application as opposed to launching from a DE/WM, or would that only be the case if I were to boot without starting xorg (...
1
vote
1answer
25 views

Screen: List Windows in Session (Non-Interactive)

Is there a way to list the windows of a screen session from a non-interactive terminal? screen -S 'screen_name' -X windows According to gnu.org, this command displays the list of windows using the ...
0
votes
0answers
14 views

Configuring Tripwire on multiple hosts on one report

I have set up Tripwire on one of my servers but I would like to implement the same policy to run on multiple hosts. I would like to configure them so they all report to one email. Is this possible? I ...
0
votes
0answers
18 views

Unable to execute backup commands in a Virtual Tape Library

I have created a virtual tape library with mhVTL based on the steps given in this link. When i try to list the tapes with lsscsi -g that are mounted it showed. [0:0:0:0] disk ATA ...
0
votes
0answers
23 views

ssh: permission denied (publickey) after restoring to a backup that was known to work at the time of backup [duplicate]

So I have a few servers set up behind a bastion. I usually hop from bastion -> server A -> server B using agent forwarding. One day I try to log into server B and for no reason apparent to me I gives ...
0
votes
0answers
7 views

No sound for msi CX61-2QC [ubuntu]

ivan@ivan-CX61-2QC:~$ cat /proc/asound/cards 0 [HDMI ]: HDA-Intel - HDA Intel HDMI HDA Intel HDMI at 0xf7a14000 irq 35 1 [PCH ]: HDA-Intel - HDA Intel PCH ...
0
votes
1answer
95 views

How to install Unison 2.40 on Ubuntu 16.04 xenial (to resolve “Fatal error: Received unexpected header”)

On my raspberry pi computers: pi@mizu:~ $ unison -version unison version 2.40.102 On my desktop ubuntu 16.04 xenial: kayd@Trunk:~$ unison -version unison version 2.48.3 When trying to ...
0
votes
1answer
19 views

How to interpret VFS usage chart

I'm monitoring an old laptop running as LAMP server. I have trouble understanding this VFS usage chart (sorry can't include images yet) from monitorix (the monitoring tool I'm using). I don't ...
1
vote
1answer
17 views

Starting additional OpenVPN connection under systemd

I have a couple of OpenVPN connections to various servers that are autostarted when I log into my laptop. Other connections, to production servers, have to be set up manually. Until recently I ran ...