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Questions tagged [ubuntu]

Free, open-source operating system based on Debian GNU/Linux. Ubuntu questions are on topic here, but if you prefer an Ubuntu-only audience there is Ask Ubuntu (http://askubuntu.com/).

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Thunderbird keyboard shortcut to switch dictionary language

As a non-American I write emails in multiple languages. In the newest releases of Thunderbird the add-on Dictionary Switcher is no longer supported, so I would like to just add a shortcut for cycling ...
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TeamCity Agent on linux doesn't recognize Powershell core Ubuntu 18.04.1 LTS

TC Version : TeamCity Enterprise 2017.1.4 (build 47070) Linux Version: Ubuntu 18.04.1 LTS (GNU/Linux 4.15.0-43-generic x86_64) Powershell Core Version: 6.1.2 I'm having some trouble in teamcity ...
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1answer
10 views

Why doesn't my terminal load .profile when I launch it?

I am very new to being a developer, and I have just started using Ubuntu. I am currently trying to run elasticbeanstalk CLI on my terminal, but I always get "eb: command not found" error when I type "...
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Ubuntu Kernal Crashes When Using Nvidia for Computation

My Alienware laptop regularly crashes when I run Tensorflow programs using GPU for computation. The following is the log files. Is there anybody knows how to solve this issue? syslog Jan 22 11:35:10 ...
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11 views

Cannot load OCI8 on an Ubuntu server

I have installed the PHP OCI8 module using a guide from this page. But when I run my phpfile that has oci_connect it thrown out the page isn't working with error code "HTTP ERROR 500" What did I do ...
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1answer
9 views

How to install R 3.5.1 on Ubuntu 16 with apt-get?

I installed R on Ubuntu 16 using the command sudo apt-get install r-base However, the version of R installed is 3.2.3, which is quite old now. I was wondering if there is a way to tune apt-get to ...
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1answer
13 views

Having trouble downloading mysql

So I am downloading mysql for DVWA (https://medium.com/@sinxloud/setup-install-dvwa-into-your-linux-distribution-d76dc3b80357) and I get: root@kali:~# *sudo apt install mysql-server* Reading package ...
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1answer
20 views

Fast MySQL query on local environment but slow on server

Locally I have MAMP installed and if I try to use MySQL select query then it takes about 2ms but the same query on server's MySQL takes about 40ms. Both MySQL environments have same version 5.7.24. ...
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12 views

How to run a command in tmux automatically

I have a GarrysMod server running in tmux that is started up automatically via cron on reboot, and the box restarts daily, but I need to run a command in the server an hour before the reboot to warn ...
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0answers
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Android Studio INSTALL_PARSE_FAILED_BAD_MAINFEST

I am trying to run a flutter application from Android Studio. The error INSTALL_PARSE_FAILED_BAD_MAINFEST is triggered when build is complete and installing the application. The phone I am using is a ...
1
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1answer
11 views

Bind Middle Click To Keyboard

does anyone know a way to bind the middle click function of a mouse to a key in ubuntu? Something like this answer here: https://askubuntu.com/questions/7769/keyboard-shortcut-for-pasting-the-primary-...
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Why the device “/dev/video1” not shows?

I'm trying to share my desktop via virtual webcam, but unfortunately the app cheese and google chrome and any app can't have access to this device "/dev/video1", the "/dev/video0" is the integrated ...
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0answers
29 views

Directus Couldn't reach api error

I tried installing directus on a ubuntu server and when I tried going to the admin page this error occurs:API error I tried modifying permissions for directories and files to be 755 and 644 ...
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1answer
16 views

How can I create an apt repository mirror on a network that is isolated from the internet?

I have a network that has no internet connectivity from any of the devices. The only way I can get data on it from the outside world is via a USB mass storage device (USB stick, external hard drive, ...
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0answers
15 views

Open 4 web browser windows in full-screen mode each in 1/4 of the screen

I regularly have some webcams open on one of the monitors of my computer. I would like to be able to open them in full screen mode, but have each "full screen" be only 1/4 of the whole screen. Here's ...
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23 views

have an error when make on ubuntu18.04

I want to install sumo(a traffic simulation software) on my ubuntu18.04,but I get an error when I input 'make'. $] cd sumo-0.32.0 $] ./configure $] make collect2: error: ld returned 1 exit ...
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0answers
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Can't boot into newly installed ISO

I'm switching my computer over to using Ubuntu and it's working but with a significant catch. If I run Ubuntu off the bootable flashdrive I made, I can run the OS just fine. However, when I select "...
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21 views

Vim Still Present After Purge Command, Why?

I need help understanding Vim and vim variants. I need clipboard support, which I can get by installing vim-gtk3. i tried that on my Ubuntu 18.04 machine, but the same version of vim previously ...
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0answers
5 views

How can I solve ant isn't working error? [on hold]

I want to build a project (LibreOffice) but when I am run "./autogen.sh" command I receive this error: checking if /usr/share/ant/bin/ant works... configure: error: Ant does not work - Some Java ...
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1answer
34 views

Remove Ubuntu from Laptop and Install Windows 10, NOT Dual Boot

I have a Dell Inspiron 15 5000 Series Laptop. I removed Windows 6 Months ago and install Ubuntu. I am currently running Ubuntu 18.10 Jelly-fish. I have downloaded woeusb and installed my desired ...
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1answer
15 views

Can't install Gulp on Ubuntu 16.04.5 LTS

When I try installing gulp on my ubuntu server I always get these error. I don't know what's wrong? It happens in a new folder after a fresh npm init. martin@serveralpha:/var/www/xyz$ npm install --...
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12 views

How to use a computer hard disk for another computer through the Internet in Ubuntu environment? [on hold]

I have an account on a HPC in our university which I access through the Internet using PuTTY. Unfortunately the hard disk I can use is about 5GB which is less for my job (molecular modelling using ...
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1answer
14 views

Cannot connect to SSL from outside ubuntu

I've got a very strange problem connecting to my newly configured SSL site. This is an Ubuntu VPS hosted on Amazon lightsail. I have docker container serving port 80 and 443 as you can see here: ...
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1answer
21 views

error: –std=c++11: No such file or directory

I tried to compile the thread program by using the below commands.But i am getting the error. g++ –std=c++11 Thread_creation_function_pointer.cc -lpthread g++ -Wall –std=c++11 ...
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11 views

Unable to connect ubuntu from Windows using RDP connection

Ubuntu = 64Bit 16.04 LTS Windows = Windows 10 64 Bit Followed explained tutorial -- http://c-nergy.be/blog/?p=5305 Issue --> when I try to connect my ubuntu machine from Windows Machine using mstsc ...
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18 views

MariaDB ColumnStore & Ubuntu 14.04

I see at mariadb.com that MariaDB ColumnStore isn't available to download for Ubuntu 14.04. Is there any way to achieve that?
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1answer
25 views

Install Ubuntu on a laptop without hard drive and without a working LCD

Old laptop, Vaio Z2, the previous owner took away their hard drive to recover the data. I wanted to turn the laptop into some sort of desktop PC by making it run on a USB liveboot of Ubuntu as I don't ...
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36 views

After HD added, computer now freezes or shuts off intermittently, no syslog entries

Computer hardware question: I installed an extra SATA hard drive in my Ubuntu 16.04 server a few days ago, to serve as a place to hold large datasets. It’s not configured as a boot drive, and it “...
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12 views

Determining source of periodic Apache SIGTERM

Running Ubuntu 18.04.1 LTS on a custom built home server (i5-6500, 16GB RAM). I have been struggling with determining the source of periodic Apache crashes at frequencies ranging from hourly to ...
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6 views

Desktop for multiple remote sessions on Ubuntu?

I am looking to buy a desktop PC for my company, fast enough that multiple users (4 at a time, at most) can login over network and have decent a development experience. I am looking for some advice on ...
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0answers
17 views

safecopy creates huge image with more block than exist

I had an hdd crash and want to recover data using safecopy. The hdd is of 2TB size and I started safecopy with this command: safecopy --stage1 /media/ubuntu/086ACF266ACF0F7E /media/ubuntu/...
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13 views

Linux execute .elf file not from terminal

I just installed a VM to run ubuntu. On windows you just click an .exe and it opens the terminal if needed. How do I do the same with .elf files? (extensionless files)
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GuestAdditions seems to be installed (6.0.2) correctly, but not running

after upgrading VirtualBox to V.6.0.2, Vagrant V2.2.3 and homestead to release 8.0.0 each time I run vagrant up I get: GuestAdditions seems to be installed (6.0.2) correctly, but not running I ...
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1answer
23 views

use Dell laptop (ubuntu / windows 10) as second extended monitor for mac book pro using HDMI cable

I have a MacBook Pro and Dell Vostro with Windows 10 and Ubuntu installed. Is there any way so I can use Dell Vostro laptop as extended monitor for MacBook pro using HDMI cable. I'm scared if I put ...
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1answer
11 views

Laggy touchpad at times in both Ubuntu and Windows. Hardware issue?

I have a XiaoMi Notebook Pro 1st gen and the touchpad is very laggy often, such that the pointer is much slower than my hand. Any software adjustment in control panel doesn't makes little difference. ...
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0answers
14 views

Compiled Python app (using Pyinstaller) GLIBC error

I am developing a python app and I have compiled to distribute using Pyinstaller, I am using Ubuntu 18. I realized that program cannot run in older machine - like Ubuntu 16, 14 and so on. The reason ...
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1answer
20 views

Is there a way to encrypt mail password when configuring mail notifications using postfix?

I am able to configure mails using postfix in ubuntu.I followed the below link to do so. https://documentation.wazuh.com/current/user-manual/manager/manual-email-report/smtp_authentication.html But I ...
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i am trying to uninstall jupyter notebook, why i am getting :permissionError: [Errno 13] Permission denied: 'transutils.py'

pip3 uninstall jupyter notebook Skipping jupyter as it is not installed. Uninstalling notebook-5.2.2: Would remove: /usr/lib/python3/dist-packages/notebook /usr/lib/python3/dist-packages/...
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Pyenv and apt/ apt-get/ aptitude or dpkg doesn't consider the current python enviroment

I am having a issue (not sure is my fault). I am testing an old version of linux (trying to compile a program in ld GLIBC). This Ubuntu 12.04 came with Python 3.4 which is not compatible with my Pypi ...
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0answers
40 views

MacOS Sierra cannot access AWS Ubuntu Desktop via RealVNC client and SSH tunneling

I need to access Ubuntu Desktop 18.x on AWS from my Mac. I have used putty and and am able to connect via ssh. https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-...
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12 views

Jenkins on EC2 AWS service: getting '[ec2-user: command not found' error

I am installing Jenkins on EC2 instance. I have followed all the steps from the AWS document provided at https://d1.awsstatic.com/Projects/P5505030/aws-project_Jenkins-build-server.pdf . I am stuck at ...
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2answers
17 views

Can't find jupyter notebook's installed location or remove it from Ubuntu

I installed the jupyter notebook ,can't remember how , but when it came to remove it I just can't , it's there and works by simply typing: "$jupyter notebook " but still : Synaptic does not recognise ...
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1answer
28 views

Virtualbox NAT Network port forwarding refuses connection

I created a NAT Network in VirtualBox and from the Ubuntu host I am trying to SSH into the Ubuntu server VM, but I get connection refused. The Ubuntu server VM is connected to the NAT Network using ...
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1answer
21 views

cant access Jenkins user root access. in ubuntu18.04

I changed /etc/sudoers: # User privilege specification root ALL=(ALL:ALL) ALL jenkins ALL= (ALL:ALL) NOPASSWD:ALL It works in root user but the mount command does not work in jenkins user in: ...
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Can not access a NTFS Harddrive under Windows nor under Ubuntu

I have a problem with an NTFS hard drive that has been damaged. At the moment I can not access it under Windows nor under Ubuntu. I know the exact procedure that caused this state of the disk: The ...
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1answer
28 views

How to create a screen and execute a sudo command

I need a script to create a screen session and run a command inside, then detach and proceed with other screens. So I need something like screen -S vault -d -m $HOME/vault/v.sh. However, v.sh requires ...
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1answer
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What are the risks to turn off firewalld on Linux Mint?

I have my macbook pro monopolized by Linux Mint 19. How ever there is a issue keeps bothering me, the firewalld can not be stopped everytime I try to shutdown or restart the OS. To solve this, I ...
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15 views

Linux log grows large, resets, does it again

Am running Ubuntu 18 and don't have a ton on their for apps. The hardware is setup with one 120gb SSD as root/boot and the rest of the drives as 2 pair of raid drives where media files, etc... reside. ...
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16 views

Make can't find libusb-1.0 when compiling lm4flash

I'm trying to get a Tiva Launchpad EK-TM4C1294XL working with my laptop which is running Ubuntu 16.04 LTS. I've been following this guide, but I'm stuck on step 9. When I run the make command, I get ...
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25 views

Autofill options on Firefox 64 [duplicate]

I'm looking for my autofill settings on Firefox 64. According to the official documentation here: Click the menu button Fx57Menu and choose Preferences. Click the Privacy & Security ...