Questions tagged [ubuntu-18.04]

The 28th major version of Ubuntu, codenamed Bionic Beaver. It was released on April 26, 2018.

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Ubuntu 18.04 DNS name resolution fails after connecting USB CAN-FD interface

Cross-posted on Unix & Linux. I'm running Ubuntu 18.04 on an embedded device (dual-core 32-bit ARM). It uses DHCP for IP/nameserver configuration and is connected to the Internet via a NAT router. ...
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Ubuntu 18.04 LTS on WSL 2 resolves DNS only on first ping

Recently I have switched from WSL to WSL2 using wsl --set-version Ubuntu-18.04 2 command. I have kept the Ubuntu version same. The problem I noticed after migrating to WSL2 is that my Ubuntu is able ...
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How can I give a user remote access to their home directory via putty without adding them to the sudo group

I created a user on an Ubuntu 18.04 server with the aim of giving the user password authentication access. They are a member of the users group. I added the user's name after my name to this line in /...
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how to get past dpkg --configure stall

We have 2 hosts in a remote datacenter stalling at the same place while trying to upgrade with apt: admin@location-a:~$ sudo apt upgrade E: dpkg was interrupted, you must manually run 'sudo dpkg --...
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unexpected EOF while looking for matching `"' ubuntu 20.04

Can someone help me ??? i don't know where is the problem ?? ./menu.sh: line 268: unexpected EOF while looking for matching `"' ./menu.sh: line 271: syntax error: unexpected end of file ...
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Does anyone know how to install ubuntu 18 on Mac m1?

I downloaded VirtualBox to install ubuntu18 but i'm not sure if it's working yet: When I click on Start VirtualBox returned : The virtual machine 'ubuntu' has terminated unexpectedly during startup ...
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VPC private server can't access web via gateway server

I am trying to set up a gateway server for a private server using DigitalOcean's VPC service (I’ll refer to the two servers as GW (gateway) and BE (backend) for brevity’s sake). I followed this ...
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Why empty drive size differs from available space

I've just formatted a 500G disk and mounted it to /data folder. ~ :) df -h Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 795M 748K 795M ...
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How can “PermitRootLogin no” add security

The topic is already discussed here, but I don't fully understand the answers I am trying to meet some good practice security criteria while setting up a VPS. I am using Ubuntu18 on AWS EC2 which I ...
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How to prevent interrupted mv moving data

On Ubuntu 18.04 I am running a small PHP web application which moves directories one by one with nested dirs and files from one filesystem to another via exec(mv filepath) method. Now I have the ...
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How can I change the line height in the Xfce4 interface?

I have been looking for ways to change(reduce) the line height or padding top/bottom on all lines in the X interface. Xubuntu 18.04 LTS After many searches, I have found that I have to edit the ~/....
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How do I simulate pluging & unplugging the mouse in a virtualbox VM on Ubuntu?

To test the Xi (X Input), I'd like to have a way to connect/disconnect my input devices in my VirtualBox system. That should generate an X-Windows message letting me know that the list of input ...
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open in remote terminal showing wrong user

My VM: Ubuntu 20.04 VPN VM: Ubuntu 18.04 I'm accessing a vm via a vpn using another vm, i got in successfully and now i'm using the built-in Ubuntu file explorer to access the vpn vmfiles using sftp, ...
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Mistake - sudo chown -Rh not-root-user /

Well that. Made a terrible mistake on ubuntu server 18.04 (production server) and ran chown -Rh some-not-root-user / Now sudo is not working. Is there any way to reverse this?
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Packets loss inside LAN for Windows 10 with Ubuntu sub-system

I am trying to reach win10 machine inside my LAN. It is accessible from other machines just fine. But I am having troubles with one specific machine. It has also OS Windows 10 with Ubuntu 18 subsystem....
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Adding non-global maximum storage capacities on samba

Goal: To give each directory it's own memory allocation, "max disk size" is a global command and wont allow me to configure each share location with it's own memory allocation. Is there a ...
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Ubuntu 18 not launching in WSL2 [duplicate]

I am just starting with WSL2, installed everything as per: https://docs.microsoft.com/en-us/windows/wsl/install-win10 Ran the Ubuntu 18.04 in my windows, everything looked good. I tried to access the ...
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Ubuntu18.04 Boot error by disk associated with missing UUID

I will use it for the first time, I'm sorry if I'm new to English and it's hard to read. Machine: DELL XPS17-9700 DualBoot: Windows10Pro/Ubuntu18.04 I was able to boot Ubuntu normally, but suddenly ...
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How can I install a 2TB SSD alongside a pre-existing 500GB dual boot SSD with Windows/Ubuntu?

I have recently purchased a 2TB Western Digital Blue SSD as an upgrade for my PC. Currently, my PC runs as a dual boot machine (Windows 10/Ubuntu) on a 500GB Western Digital Blue SSD. The reason for ...
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Is it possible to modify a “human” user so that it becomes a system user on Ubuntu?

I followed a guide to set up etherpad-lite on my ubuntu server (https://www.rosehosting.com/blog/how-to-install-etherpad-on-ubuntu-18-04/). At one point, I had to create a new user with sudo adduser --...
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Can't see any files inside /mnt/d in linux ubuntu 18.04 LTS terminal in my Windows using WSL 2

I was new on WSL, I know how to change directory from C: to D: in Linux Ubuntu 18.04, when I change the directory from C: to D: (which is in /mnt/d) I can't see any of files that already exist in D: ...
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Open an Access database in LibreOffice Base

I try to open a access database in LibreOffice Base First, I installed LibreOffice sudo apt-get install libreoffice Then I downloaded UCanAccess (http://ucanaccess.sourceforge.net/site.html) and ...
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36 views

Systemd: how to start service after another service started

I have these two services, one is Google start up script service and second one is redis service, I want to start redis service once the startup script service is started and done, I have these ...
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Docker swarm on multiple physical machines

I am deploying Hyperledger Fabric in a distributed environment using instructions from here. To achieve distributed setting Docker Swarm is required. One of my node is on the remote (which is my ...
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KDE Panel not fully visible on second screen

Using Ubuntu 18.04 with KDE installed, I tried to duplicate my taskbar panel. In theory it works, but the lower half is cut off and I can't see why that might be. Clicking in the free area beneat the ...
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Hyper-V: ubuntu no internet

I’m using ubuntu18.04 in Windows hyper-v. To enable interner on ubuntu, I’ve created a network switch, say mySwitch. And then created a network bridge in windows, for mySwitch and home wifi. Then, in ...
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Kubuntu 18.04 freezes on login

I am using Kubuntu 18.04 LTS on Dell hardware. I use the KDE Plasma desktop environment locally, and frequently run XFCE4 remotely with X2Go. Recently (and suddenly), I can no longer login locally to ...
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Synergy can't connect with new router

I have been using Synergy (from Symless) for 1.5 years now. I moved to a new place (so new router; a ZTE ZXHN F618 - ZTE PON ONT) and I cant make it work. I read that this router's WLAN and LAN is on ...
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vsftp - GnuTLS error -15: An unexpected TLS packet was received

I am running vsftp on Ubuntu 18.04 on Azure. Filezilla clients are 3.52.2 (Windows) and 3.28.0 (Ubuntu 18.04). The error seen at the client is the same for both. Status: Resolving address of myserver....
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not able to execute pyQT application using systemd

I am trying to execute the pyQt4 application program using systemd service, but the service status shows that the program is unable to connect to the X server. [Unit] Description = Test After=multi-...
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how to restrict taskbar display while using spefic application?

I am using the PyQt4 application for ubuntu18.04 LXDE on Nvidia Jetson Nano 2GB. I wanted the taskbar to be forcefully hidden while running the PyQt4 application. How can I configure my LXDE desktop ...
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Setting audio permissions at reboot and login automatically

I have a group of sound devices in a server that I would like to be accessed by some users. So, I made (with root permissions, i.e. sudo): setfacl -b /dev/snd setfacl -b /dev/snd/* chmod 777 /dev/snd ...
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Ubuntu KDE Lock Screen no input possibilites

I have Ubuntu 18.04 installed and added KDE to it afterwards. Whenever I lock my system and try to unlock it, I only get blank blue screens (dual monitor setup) with a cursor. I can move the cursor, ...
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How to restore boot in Linux from GRUB mode?

My Server (Ubuntu 18.04) is stuck in GRUB mode. I try the following to get it to boot as per tutorial in https://linuxhint.com/grub_rescue_ubuntu_1804/ grub> ls (proc) (hd0) (hd1) grub> grub&...
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How to make work the i686 version of ubuntu 18.04 (emulated with exagear) on the jetson nano

Someone of you still use and or remember the "old" exagear tool ? it has discontinued on 2019. I’ve installed it on my jetson nano and I have also activated an old license that I’d bought ...
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“This operation returned because the timeout period expired” appears when trying to open Ubuntu

I have installed Ubuntu 18.04 on my Windows machine, but whenever I click on it to open it, I get "This operation returned because the timeout period expired". How can I solve the problem? ...
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My connection is closed after connecting to server via SSH

I Clash to big problem for me. I have vPS on Hetzner with ubuntu OS and plesk. I have shared hosting for some specific websites for my companie. When I want to connect to the domain name via ssh I'm ...
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How to delete all partitions and re-install latests Ubuntu version?

Hope you are all doing fine. First of all, I am not an expert on Linux or computer crafts. Now, to the point: I have an old Dell Vostro3500 laptop. It has a partition that allows selecting between ...
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How to recognize an External Harddisk inside Windows 10 (as guest) on Ubuntu 18.04 (host) using VirtualBox 6.1.16?

When I run my Windows 10 (as guest) on my Ubuntu 18.04 (host), I can issue command: VBoxManage controlvm "Windows10Pro" webcam attach /dev/video0 Then I can recognize my USB webcam inside ...
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error in running ansible-playbook with jenkins

--i have a ansible playbook in ubuntu user and i am able to push this playbook in the remote user -- now i have install jenkins in this ubuntu(EC2 instance) server , and i have given jenkins all ...
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Thunderbird on Ubuntu 18: “There was a prob including the file xyz.de in the message”

When I try to send an E-Mail with attachment, I get the error: There was a problem including the file filename.pdf in the message. Would you like to continue sending the message without this file? I ...
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Ubuntu 0 space available, 100% use

When I run df -h, I see that the partition I am usually use has0 Available and 100% use. It is the Ubuntu partition, and I am not even able to boot. Does anyone have any suggestions on how to fix this?...
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Issues installing ffmpeg on ubuntu 18.04

apt install ffmpeg > Reading package lists... Done Building dependency tree Reading state > information... Done Some packages could not be installed. This may > mean that you have requested ...
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How do host machine know about the private key in the machine which is doing ssh in it [ssh-copy-ip method ]

with this method ssh -i private key ubuntu_A@1.2.3.4 i am telling that here is my private key and ubuntu_A matches my private key with the public key in Authorized_keys . i am confused with ssh-...
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Ctrl-c doesn't work over ssh

When I ssh to remote I can't quit the program using Ctrl-c, it only prints ^C. Ctrl-c works on the same remote when I ssh from a different machine. It also works on my local machine. How can I make ...
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Preventing constant timeouts with SFTP (Ubuntu 18.04 / PCManFM)

I can't figure out how to prevent constant timeouts with SFTP. Both client and server are Ubuntu 18.04 and I get the SFTP connection through PCmanFM. Server configuration: /etc/ssh/sshd_config # other ...
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Gparted: Need to move unallocated space out of /dev/sda2 partion to /dev/sda1 to increase root size but options are grayed out

Due to some reason my root (/dev/sda1) partition got entirely used up. Probably I installed some thing in it mistakenly, to the point that the OS won't boot. So I created a live Gparted USB from an ...
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Port Forwarding and Firewall issues from public IP to VPN network

WAN VPN |--------------| |-------------------------| |------------| | Web Client | <----> | Cloud Server | <----> | Rpi |...
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Disabling ssh autologout in Ubuntu 18

We have ~20 VMs running Ubuntu 18.04.2 in our freshly deployed K8s cluster here and each of them keeps closing my idle ssh sessions in mere minutes. Hence 2 questions to stop this disaster: (1) What ...
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Temporary failure in name resolution error on Ubuntu 18.04 Hyper-V machine on Windows 10

I installed Ubuntu 18.04 as a Hyper-V machine on Windows 10 home machine. When I try to do ping google.com I periodically get ping: google.com: Temporary failure in name resolution /etc/resolv.conf ...

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