I’ve been getting an error when I type “sudo su”. It says: This was caused by the shell for root was incorrectly set. To fix it, I edit the passwd: Then I edited the line for root from: to
If you want to convert an eps to pdf then a really good tool is the obviously named epstopdf. To install this you need install the texlive-font-utils package:
I find adding a new user in Ubuntu really confusing. Surely there should be a wizard program for it? Anyhow, for my records here is how I do it. Create the user Set the users password Then I log in as the user Change the shell to /bin/bash You can make the user a sudoer … Read more
Once you have over three Ubuntu servers or desktops to manage it can be really useful to have a tool to help keep all their packages up to date. Put simply, you can’t keep logging into to each computer, checking and installing updates manually. I am not talking about configuring Ubuntu in the first place … Read more
It is very easy to convert a VirtualBox .vdi disk images to KVM qcow2 file. You have to use the RAW file format as an intermediate. 1 – Make sure the VirtualBox machine is shutdown. 2 – Convert the vdi to a raw disk images. Note: vdi are compressed and raw images are not and … Read more
This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running. Step 1 – Enable NBD on the Host You will need to enable the nbd (network block device) kernel module on the host. This … Read more
Everyone knows that passwords aren’t always secure, annoying to remember and type. Add to that the longer/stronger your password the harder it is to remember. Therefore ssh-keys are very convenient and more secure. However, most people don’t put a passphrase on their ssh-keys because surely this would mean you would have to enter this passphrase … Read more
The Ansible website has some instructions for installing it on Ubuntu here. However, I like to install things from repositories and not git. So, I found a PPA with the latest version of Ansible on Launchpad. https://launchpad.net/~rquillo/+archive/ansible So to install Ansible on Ubuntu run: Thanks Rodney Quillo.
We have been trying to make a curl requested to login to a secure website from within PHP on Ubuntu 12.04. However, curl was hanging and responding with a nothing. After much debugging, it turns out the curl was failing to negoitiate the correct ssl protocol to use. You can test if you have the … Read more
Qpress is a fast compression tool. It isn’t in the Ubuntu repositories but it very easy to install. Download it from the website: http://www.quicklz.com/ You will notice that there is a download link near the bottom of the page for Linux 64 bit. Copy the binary to /usr/bin/qpress . To make it owned by root … Read more