Many tutorials we found on internet talk about DNSCrypt but no one talks about Ubuntu 15.04. As you know, Ubuntu 15.04 brings big changes named systemd (replaced upstart as init system). So, installing DNSCrypt on 12.04 will be different with 15.04. I try to write an article about it. In short, DNSCrypt will encrypt our DNS request so our connection will be secure from DNS hijacking or any of such security attack. We will install DNSCrypt via PPA from Pascal Mons because some days ago he uploaded the Vivid packages for DNSCypt. Thanks for Pascal Mons.