> **Note**
>
-> RHEL/CentOS 5 packages require the EPEL repository enabled (which provides the
-> `boost141` package). SLES 11 SP3 and older versions require the `boost_1_54_0`
-> package (available on packages.icinga.org).
+> RHEL/CentOS 5 packages require the [EPEL repository](http://fedoraproject.org/wiki/EPEL)
+> enabled (which provides the `boost141` package). SLES 11 SP3 and older versions
+> require the `boost_1_54_0` package (available on [packages.icinga.org]).
You can install Icinga 2 by using your distribution's package manager
to install the `icinga2` package.