Look for NOC overlay in: https://bugs.gentoo.org/show_bug.cgi?id=366051 Install resent NOC overlay. Chose ebuild: stable release noc-0.9.ebuild or from repository noc-9999.ebuild. Currently no stable release of NOC exists, so you must make it for you, or use noc-9999.ebuild: $ hg clone https://bitbucket.org/nocproject/noc noc $ cd noc $ hg update develop $ cd ../ $ tar -cjf noc.tar.bz2 noc Then copy archive to your distfiles and build manifest for noc ebuild: # cp noc.tar.bz2 /usr/portage/distfiles # cd {overlay_path}/net-analyzer/noc # rm Manifest # ebuild noc-0.9_rc0.ebuild digest If you choice installation from repository (noc-9999.ebuild) you need add net-analyzer/noc ** to your keywords file, general in /etc/portage/package.keywords Now you are ready to run: # emerge -a net-analyzer/noc after installetion complate, start mongo and postgres: # /etc/init.d/mongodb start # /etc/init.d/postgresql-9.3 start Take a look in /opt/noc/etc/upgrade.conf Then configuring NOC by running: # emerge --config net-analyzer/noc You will be prompted for device (eth0 ?) and password for administrative account. Now you can start NOC: # /etc/init.d/noc start Go in you web browser to 'https://127.0.0.1' accept certificate and enable java scripts. You may edit web server configuration file for listening other interface... Add one or more Managed Object (Service Activation > Managed Objects) You will get your network database initialized and device configuration grabbed in 5-15 minutes.