Packages with the server use flag

app-misc / blink1 : blink(1) USB RGB LED status light control suite

  • Build and install REST API server (currently hard-coded to TCP port 8080)

app-portage / grs : Suite to build Gentoo Reference Systems

  • Install all the tools building systems

dev-db / etcd : Highly-available key value store for shared configuration and service discovery

  • Installs etcd daemon

dev-db / firebird : Relational database offering many ANSI SQL:2003 and some SQL:2008 features

  • Install the server components of Firebird, not just the client

dev-db / mariadb : An enhanced, drop-in replacement for MySQL

  • Build the server program

dev-db / mysql : A fast, multi-threaded, multi-user SQL database server

  • Build the server program

dev-db / percona-server : Fully compatible, enhanced and open source drop-in replacement for MySQL

  • Build the server program

dev-db / postgresql : PostgreSQL RDBMS

  • Disable to build and install the clients and libraries only.

dev-haskell / texmath : Conversion between math formats

  • Compile webserver.

dev-libs / log4cplus : C++ port of the Log for Java (log4j) logging library

  • Build the logging server

dev-libs / tntnet : Modular, multithreaded web application server extensible with C++

  • Enable tntnet server daemon

dev-python / paramiko : SSH2 protocol library

  • Enable server feature

dev-ruby / rubygems : Centralized Ruby extension management system

  • Install support for the rubygems server

dev-vcs / cvs : Concurrent Versions System - source code revision control tools

  • Enable server support

games-action / minetest : A free open-source voxel game engine with easy modding and game creation

  • Build Minetest server

games-action / supermariowar : Fan-made multiplayer Super Mario Bros. style deathmatch game

  • Compile and install Super Mario War server files

games-arcade / jazz2 : Open source reimplementation of Jazz Jackrabbit 2

  • Build the multiplayer game server

games-board / cockatrice : Open-source multiplatform software for playing card games over a network

  • Compile server support

games-engines / odamex : Online multiplayer free software engine for DOOM

  • Build server target

games-fps / eduke32 : An open source engine port of the classic PC first person shooter Duke Nukem 3D

  • Enable support for multiplayer.

games-fps / prboom-plus : An enhanced clone of the classic first-person shooter Doom

  • Build PrBoom-Plus server

games-fps / sauerbraten : Sauerbraten is a FOSS game engine (Cube 2) with freeware game data (Sauerbraten)

  • Compile server support

games-fps / turtlearena : A turtle featuring free and open source third-person action game (ioq3 engine)

  • Build server target

games-fps / urbanterror : Hollywood tactical shooter based on the ioquake3 engine

  • Build binary for dedicated server

games-roguelike / tomenet : A MMORPG based on the works of J.R.R. Tolkien

  • Compile server

games-strategy / freeciv : Multiplayer strategy game (Civilization Clone)

  • Enable server support. Disabling this will also make it impossible to start local games.

games-strategy / hedgewars : A turn-based strategy, artillery, action and comedy game

  • Enable local server

games-strategy / ufoai : UFO: Alien Invasion - X-COM inspired strategy game

  • Build the dedicated server

games-strategy / wesnoth : Battle for Wesnoth - A fantasy turn-based strategy game

  • Enable compilation of server

media-plugins / vdr-streamdev : VDR Plugin: Client/Server and http streaming plugin

  • Compile the VDR plugin vdr-streamdev-server that allows remote systems to access the vdr using streamdev-specific VTP and HTTP protocol

media-sound / snapcast : Synchronous multi-room audio player

  • Build and install Snapcast server component

media-sound / supercollider : Environment and programming language for real time audio synthesis

  • Build with internal server

media-sound / xmms2 : X(cross)platform Music Multiplexing System, next generation of the XMMS player

  • Build xmms2 player daemon (otherwise only clients are built)

net-analyzer / 2ping : A bi-directional ping utility

  • Install the server init scripts.

net-analyzer / ossec-hids : Open Source Host-based Intrusion Detection System

  • Build "server" installation target

net-analyzer / zabbix : ZABBIX is software for monitoring of your applications, network and servers

  • Enable zabbix server

net-dialup / openl2tp : Userspace tools for kernel L2TP implementation

  • Enable l2tp server.

net-firewall / fwknop : Single Packet Authorization and Port Knocking application

  • Build fwknopd server

net-fs / cvmfs : HTTP read-only file system for distributing software

  • Install the cvmfsd program and init script

net-ftp / tftp-hpa : Port of the OpenBSD TFTP server

  • Compile and install the tftp server

net-irc / quassel : Qt/KDE IRC client supporting a remote daemon for 24/7 connectivity

  • Build the server binary. If this USE flag is disabled, the 'core' server binary for quassel is not built, and cannot be used. You need this enabled on the server, but you might want to disable it on the client.

net-libs / libssh : Access a working SSH implementation by means of a library

  • Build with SSH server support

net-libs / xrootd : Extended ROOT remote file server

  • Install xrootd server and related plug-ins

net-mail / cyrus-imapd : The Cyrus IMAP Server

  • Enable building server binaries

net-misc / dhcp : ISC Dynamic Host Configuration Protocol (DHCP) client/server

  • Install the dhcpd and dhcrelay programs

net-misc / freerdp : Free implementation of the Remote Desktop Protocol

  • Build server binaries

net-misc / gsasl : The GNU SASL client, server, and library

  • Build server component

net-misc / knock : Simple port-knocking daemon

  • Installs the knockd server daemon.

net-misc / mosh : Mobile shell that supports roaming and intelligent local echo

  • Build network server

net-misc / tigervnc : Remote desktop viewer display system

  • Build TigerVNC server

net-misc / turbovnc : A fast replacement for TigerVNC

  • Build the server (vncserver, Xvnc)

net-misc / uftp : Encrypted UDP based FTP with multicast

  • Install uftp server daemon

net-vpn / tor : Anonymizing overlay network for TCP

  • Enable tor's relay module so it can operate as a relay/bridge/authority

sci-biology / ucsc-genome-browser : The UCSC genome browser suite, also known as Jim Kent's library and GoldenPath

  • Install genome browser Web application. If this flag is off, only libraries and utilities from the suite are installed.

sci-chemistry / molequeue : Abstract, manage and coordinate execution of tasks

  • Build the serve application

sys-auth / seatd : Minimal seat management daemon and universal library

  • Enable standalone seatd server, replacement to (e)logind

sys-cluster / torque : Resource manager and queuing system based on OpenPBS

  • Enable compilation of pbs_server and pbs_sched

sys-devel / gdb : GNU debugger

  • Install the "gdbserver" program (useful for embedded/remote targets)

virtual / mysql : Virtual for MySQL database server

  • Build server (mysqld)

www-servers / civetweb : Embedded C/C++ web server

  • Build standalone server

x11-wm / xpra : X Persistent Remote Apps (xpra) and Partitioning WM (parti) based on wimpiggy

  • Build server-side code