Installing cygnus-ngsi with RPM (CentOS/RedHat)

Simply configure the FIWARE repository if not yet configured:

$ cat > /etc/yum.repos.d/fiware.repo <<EOL
[Fiware]
name=FIWARE repository
baseurl=http://repositories.testbed.fi-ware.eu/repo/rpm/x86_64/
gpgcheck=0
enabled=1
EOL

And use your applications manager in order to install the latest version of cygnus-ngsi:

$ yum install cygnus-ngsi

The above will install cygnus-ngsi at /usr/cygnus/, together with cygnus-common (it contains all the common dependencies to all Cygnus agents, NGSI agent included).