Some people advise to install the 'rubygems-update-1.3.7' gem on Ubuntu systems if you used apt to install RubyGems. I did that - and lost all local...
...ln -s /var/lib/gems gems If you need to have the rubygems package installed on Ubuntu Due to a dependency from another package, you might have APT force the rubygems package...
Ubuntu 12.04 LTS x64, Ruby 1.8.7, Rails 2.13, PDFKit 0.5.4, Phusion Passenger Apache 2 I ran into this, when I started using passenger to deal with the Single Thread Issue...
...miss their cheatsheat and their learn-puppet virtual machine. #Installation and basic configuration on Ubuntu Linux: sudo apt-get install puppet, then follow this guide starting at "Creating a Puppet...
...Using LC_ALL=de will only work if there really is a "de" locale -- Ubuntu will not automagically guess something like de_DE.utf8. Run locale -a to list all available...
...The same method works for MariaDB, too, but in version 10.0.34 that comes with Ubuntu 16.04, you could instead just run mysql as the system user root, e.g. with sudo...
...Domain Control Validated/CN=*.makandra.de You can scan different ports (e.g. for SMTP): ~> sslscan mail.makandra.com:25 Ubuntu? Try sudo apt-get install sslscan...
...run it everytime you open your shell, i.e. put it into your .bashrc (on Ubuntu there is even a commented-out line that you can just put back in).
...at a "daylight white" screen all day and night. The program is in the Ubuntu repositories, so a simple "sudo apt-get install gtk-redshift" transfers it onto your hard...
...version 2.x of Thunderbird and upgraded to 3.x (for example through an Ubuntu release upgrade) you might notice that Thunderbird will not show any of your old e...
...client status ssh If you want to unban a host banned by fail2ban on Ubuntu 14.04 or later use this method: fail2ban-client set $JAIL unbanip $IP #example with a...
...This works on linuxes who use the Perl version of the rename command (like Ubuntu): rename 's/\.foo$/\.bar/' * You can also use this to rename other parts of the...
Use this snippet by Achu from Ask Ubuntu: ping hostname.tld | while read pong; do echo "$(date): $pong"; done This gives you lines like: Wed Nov 4 10:32:31 CET...
...vim /etc/mysql/my.cnf In the [mysqld] section, add: log=/var/log/mysql.log Restart your MySQL daemon. On Ubuntu: sudo service mysql restart Note that your MySQL performance will suffer. But when you need...
This site contains 29761 parsed manpages from sections 1 and 8 found in Ubuntu's manpage repository. A lot of heuristics were used to extract the arguments of each...
Ubuntu lets you mount an SSH shell into Nautilus from Places -> Connect to server (select "SSH" as server type). In order to copy a file over SSH from a shell...
In Ubuntu your ALT key is locked when you're working in VirtualBox. There are two workarounds for this: Press the Windows key in addition to the ALT key
...across many more platforms. I just didn't want to use Dropbox... I use Ubuntu One to automatically sync confidential files between my machines. The encryption is done via encfs...
...ll sync is ~/sync. You can set it up like this: Sign up with Ubuntu One (found under SystemSettings on a ubuntu box) or any other cloud storage. We assume...
...with multiple pages that can be printed and turned into one big poster. In Ubuntu, you can install it with sudo apt-get install pdfposter Scaling to the desired size...
...found for the language "de" Solve it by installing the proper package, e.g. on Ubuntu: sudo apt-get install aspell-de
I've encountered a Ubuntu 16.04 today, where localhost resolved to ::1 instead of 127.0.0.1. This will not usually make a difference, but could be relevant for firewall policies...
...small always-on-top window in a corner of one of my screens. On Ubuntu, you can use a PPA to install: sudo add-apt-repository ppa:mitya57/ppa
On Ubuntu, you can scroll horizontally with your mouse wheel when holding the Shift key while scrolling. It does not work in all applications, but many support it...
If you're on Ubuntu: sudo apt-get install ruby-dev On other platforms: Look for a package containing ruby header files. On Red Hat that's "ruby-devel" likely...