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1500 questions
133
votes
17 answers

What's the easiest way to set up a LAMP stack?

I set up a new VPS instance of Ubuntu and am wondering what the easiest way is to get up and running with a basic LAMP stack (i.e. which packages are required, which configuration options need to be tweaked, if any, etc.).
jerhinesmith
  • 1,733
133
votes
7 answers

How to set up aliases in zsh?

I know that in bash you can set up aliases in a .bash_aliases file, so that the command you type doesn't need to be a command stored in the binaries in the system. Is there any way I can get aliases into zsh ?
Thomas Ward
  • 80,112
133
votes
6 answers

Export image as SVG in GIMP

I have a project I have been working on (an image) within GIMP and I would like to export it as an SVG. Is this possible, or am I going to have to stick with exporting multiple sizes of an image? I know GIMP can read SVGs, but can it export them?
RPiAwesomeness
  • 9,941
133
votes
4 answers

kswapd0 is taking a lot of cpu

kswapd0 is taking 99.9% of my CPU as top shows me, the problem appeared today when gaming and first time it went away after 6 minutes and now it has been doing it for about 20 minutes. How is this fixable and what is causing this?
inimene
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133
votes
7 answers

How can I scale all images in a folder to the same width?

I want to scale all images in a given folder to the same width (but different appropriately scaled heights). How can I do this using a GUI-based or command-line tool? For bonus points, is it possible to restrict which images are scaled based on…
lofidevops
  • 22,012
133
votes
12 answers

Problems with Chrome browser after suspending the computer on Ubuntu 20.04

Kubuntu 20.04, 64 bit GPU: Geforce GT610 nvidia-driver-390 Chrome Version 85.0.4183.83 Intel i5-4430, core 4, 4 thread , 3GHz RAM: 16GB Each time I go into suspend mode and then resume, Chrome browser displays the current tab as full of sand of…
christianbueno.1
  • 1,844
133
votes
2 answers

How can I allow SSH password authentication from only certain IP addresses?

I'd like to allow SSH password authentication from only a certain subnet. I see the option to disallow it globally in /etc/ssh/sshd_config : # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes Is there a way to apply…
ændrük
  • 78,726
132
votes
5 answers

How do I install kernel header files?

i want to write a device driver but not able to find the header file can someone please help me find them?Also if someone can point out some important site links that would be really appreciated
coder
  • 3,701
132
votes
2 answers

What is the difference between GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub

I'm troubleshooting a fn-key brightness control problem on my laptop, so I'm wading through a lot of config options in /etc/default/grub, as you can imagine. However, it's raised a question for me: What's the difference between the lines marked…
analogyschema
  • 1,431
132
votes
5 answers

How do I get a colored bash?

How can I get the bash to look colored like this?
daniel451
  • 7,613
132
votes
16 answers

How to text-to-speech output using command-line?

How to get speech output from entered text by using command-line? Also facility to change speech rate, pitch, volume etc using simple command .
Pandya
  • 37,469
132
votes
3 answers

Share wireless Internet connection through ethernet

I want to share the wireless Internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but my laptop doesn't connect. Am I doing something wrong or…
Christos Baziotis
  • 2,005
132
votes
3 answers

Why should users never use normal sudo to start graphical applications?

I've read the comunity "RootSudo" documentation and am interested in this line: You should never use normal sudo to start graphical applications as Root. Why? What is the difference? Please provide a simple explanation, as I'm just a normal desktop…
Nur
  • 4,131
132
votes
14 answers

What hardware does Ubuntu Touch support?

With the announcement of the Ubuntu Phone OS I'd like to know what phone (and tablet) models are supported at this time. Note from foss & Oli: We are making this the master question for all future "Will this work on <insert random…
Marco Ceppi
  • 48,887
132
votes
6 answers

What is the easiest way to resolve apt-get BADSIG GPG errors?

I frequently cross this issue, and always have to google for an answer. Does anyone have a permanent fix for BADSIG errors from apt-get ? W: GPG error: http://download.virtualbox.org lucid Release: The following signatures were invalid: BADSIG…
cmcginty
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