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Linux Mastering Development Ubuntu

Minimal BASH like line editing is supported

I did ubuntu-minimal dual boot with windows but ubuntu was a problem, so i downloaded a lubuntu iso and tried to dual boot again but lubuntu came up with a new problem, so i took the pendrive and turned off the pc, now every time I call this error message appears. I downloaded a new […]

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Linux Mastering Development Ubuntu

I can’t install defaultjre and other packages

I tried to install Cordova in Ubuntu 20.04 through sudo apt-get install cordova-cli. But it wasn’t successful. So I installed it using npm. then I did sudo apt-get update and it shows like this. sudo apt-get update Hit:1 http://ppa.launchpad.net/atareao/telegram/ubuntu focal InRelease Ign:2 http://us.archive.ubuntu.com/ubuntu precise InRelease Hit:3 https://brave-browser-apt-release.s3.brave.com stable InRelease Ign:4 http://archive.canonical.com/ubuntu precise InRelease Ign:5 http://extras.ubuntu.com/ubuntu […]

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Linux Mastering Development Ubuntu

Wifi adapter keeps disappearing randomly

I have a hp laptop which is dual booted with windows10 and ubuntu 18. My wifi adapter keeps disappearing for both windows and ubuntu. I tried reinstalling/updating the driver, turning off the power saver mode, disabling secure boot but nothings helps. Sometimes just rebooting the system fixes the problem. Can anyone please help me fix […]

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Linux Mastering Development Ubuntu

gpg2 not able to download keys “receive failed: try again later”

I’m attempting to add the keys for RVM, however, I am getting an error from gpg2. $ gpg2 –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB gpg: keyserver receive failed: Try again later I’ve also tried a more verbose approach but I get the same error: $ gpg2 -vvv –keyserver hkp://keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB gpg: using character set ‘utf-8’ gpg: […]

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Linux Mastering Development Ubuntu

Mysql active after every boot

Whenever I boot, when I type systemctl status mysql.service, I see Mysql is running. I want to manually activate Mysql whenever I need. I forget to turn off every single time I don’t need the service. Thanks for advance.

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Linux Mastering Development Ubuntu

How to export a xlsx to pdf/A on the cli

I’ve tried both with lowriter and localc yet it always looks very bad and isn’t PDF/A. Ive tried: localc / lowriter –convert-to pdf *.xlsx

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Linux Mastering Development Ubuntu

Hide IP Address of relayed Mail Server with postfix

I installed postfix as smarthost My local Email Server is Exchange 2016 and it sends all emails to postfix as relay server and mx record is set to postfix Exchange server is behind firewall (NAT) and send emails to postfix server with is hosted on external datacenter . They work properly . How can I […]

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Linux Mastering Development Ubuntu

Android Messages how to create a custom notification

I have mental disability. Is there a way to create a custom notification for Android Messages where the Ubuntu screen shakes/flashes or does something to get my attention when my phone can’t vibrate like normal to get my attention. Example the Android Messages Desktop program is minimized or covered up by my browser and I […]

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Linux Mastering Development Ubuntu

Unable to access Ubuntu based SMB share on windows 10 and on phone

I cannot access the ubuntu smb share on windows 10, Thanks, enter image description here enter image description here

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Linux Mastering Development Ubuntu

oh-my-zsh theme doesn’t apply completely

I install oh-my-zsh follow the instructions on github-wiki. But something is not right. My terminal still has ui and background color of old ubuntu terminal. Terminal My .zshrc config: # If you come from bash you might have to change your $PATH. export PATH=$HOME/bin:/usr/local/bin:$PATH # Path to your oh-my-zsh installation. export ZSH="/home/liv1n9/.oh-my-zsh" # Set name […]