how to flush dns cache in 16.04.1

How to flush DNS without root privileges

location: ubuntuforums.com - date: September 28, 2016
Is it possible to flush the DNS without root privileges? Would like users of a community desktop to do so occasionally. Currently I am using sudo /etc/init.d/nscd but I am not always there. OR would it be possible to run this on boot without user interference?

[SOLVED] how to prune ubuntu 12.04

location: linuxquestions.com - date: July 29, 2013
hi all. i want to prune kubuntu for some special use. when installed on disk , it use 3.2G disk space. i want to prune it to Less than 1.5G . the only function i will use is web Browser. i've try so many times, but still can't get it. can you help me, thanks any advice !! < sorry, English is not my native language, hope you understand and help me!!>

How to Replace Ubuntu 12.04 LTS with Windows Vista

location: ubuntuforums.com - date: August 31, 2013
I threw Ubuntu 12.04 LTS on my old PC to see how it runs, and it runs great, but doesn't always boot up. Now I'm trying to install Windows Vista, and even when I select my DVD drive as the boot device, it stalls, then loads Ubuntu. I do have Wine installed, if I need to use it. But how can I reinstall Vista?

How to install ubuntu 8.04 on a system already having RHEL 5

location: linuxquestions.com - date: June 7, 2008
Hi guys.... I have RHEL 5 and Windows already installed on my system.I tried to install the latest ubuntu 8.04 desktop sdition alongside these.I made a 7.5 GB partition and 512 MB swap separate frm windows and RHEL occupied space.In the installation too everything went well.I enabled the ubuntu to install its boot loader in (hd0).Everything was fine till now. The problem came when I rebooted.I found that RHEL GRUB menu came as usual on the screen as if nothing happened.There was no ubuntu boot loader.Also there in the menu showed no option for Ubuntu. Kindly can anyone plz give a step-by-step solution?? ( Plzlist exactly what to add in /boot/grub/menu.lst of RHEL 5 if any )

How to upgrade ubuntu 8.04 to 10.04

location: ubuntuforums.com - date: February 17, 2011
Hello, I have been using Ubuntu 8.04 hardy with dell inspiron mini. Now I wanted to upgrade to new version. But I could not upgrade. When I go to update manager, it never show me new release. So, I have downloaded ubuntu-10.04.1-i386.iso file in my computer and also ubuntu-10.04.1-alternate-i386.iso files but I do not know how to use this upgrade file. I try to some options available from forum but does not work. I try this command as well sudo mount -o loop ~/Desktop/ubuntu-10.04-alternate-i386.iso /media/cdrom0 it does not worked. I did trying using unetbooting-linux-494 and it works but in the installation step 4 0f 7 could not fix. Which one to selet sdc, sda etc. How is the easiest way to upgrade

How to upgrade from 9.04 to 10.04?

location: ubuntuforums.com - date: May 17, 2010
Is it possible to upgrade from Ubuntu 9.04 Jaunty Jackalope to Ubuntu 10.04 Lucid Lynx without upgrading to Ubuntu 9.10 Karmic Koala? When I go to my "Update Manager" I only see the upgrade button for 9.10 but there's no upgrade to 10.04. An immediate response is highly appreciated! Thanks in advance!

How to upgrade from 9.04 to 10.04 LTS

location: ubuntuforums.com - date: October 21, 2010
Hi, I'm trying to upgrade my Ubuntu 9.04 to 10.04 LTS, the problem I had is that I changed the file /etc/update-manager/release-upgrades in this way: prompt=lts But, when I run do-relesase-upgrade I had this message: Checking for a new ubuntu release current dist not found in meta-release file No new release found Is there a way to update from 9.04 to 10.04 LTS?

How to make ubuntu 12.04 LTS faster on netbook

location: ubuntuforums.com - date: June 6, 2012
Hi all! I looked around a lot for an advice as in the title but without any success. I'd like to have some advices on how to make lighter and faster ubuntu 12.04 LTS on a netbook. I have a samsung netbook (N150) with an Intel(R) Atom(TM) CPU N450 @ 1.66GHz (32 bit), 1 GB RAM and an Intel GMA graphic processor as graphic card. I upgraded from ubuntu 10.04 LTS (netbook version) to 12.04 LTS some week ago. The 10.04 LTS version was very very faster than the one I have now. I don't need any graphical effect (I use the 2D desktop environment), just I'd like to return to the speed of ubuntu 10.04 LTS. Thanks for your help!

LXer: How To Upgrade Ubuntu 12.04 To 12.10 (Quantal Quetzal) (Desktop & Server)

location: linuxquestions.com - date: October 19, 2012
Published at LXer: The new Ubuntu 12.10 (Quantal Quetzal) has just been released. This guide shows how you can upgrade your Ubuntu 12.04 LTS desktop and server installations to Ubuntu 12.10. Read More...

How to change Ubuntu 12.04 login screen to require full credentials?

location: linuxquestions.com - date: June 3, 2012
A login screen should ask for both user name and password. That is basic common sense security IMHO. With Ubuntu 10.04 I could change the login to require both by executing Quote: