Packages with the daemon use flag

app-emulation / lxd : Fast, dense and secure container management

  • Build the system daemon, not just the client tool

dev-libs / libcgroup : Tools and libraries to configure and manage kernel control groups

  • Install the configuration tools and init/config files.

mail-filter / dspam : A statistical-algorithmic hybrid anti-spam filter

  • Enable support for DSPAM to run in --daemon mode

mail-mta / msmtp : An SMTP client and SMTP plugin for mail user agents such as Mutt

  • Build/install msmtpd MTA daemon

net-libs / tox : Encrypted P2P, messaging, and audio/video calling platform

net-p2p / amule : aMule, the all-platform eMule p2p client

  • Enable amule daemon

net-p2p / eiskaltdcpp : Qt/DC++ based client for DirectConnect and ADC protocols

net-p2p / rtorrent : BitTorrent Client using libtorrent

  • Uses app-misc/screen to daemonize this application

sys-apps / smartmontools : Tools to monitor storage systems to provide advanced warning of disk degradation

  • Install the monitoring daemon (smartd) and associated scripts.

www-apps / tt-rss : Tiny Tiny RSS - A web-based news feed (RSS/Atom) aggregator using AJAX