+\fBConnectRetry\fR (number)
+The server tries every <ConnectRetry> seconds to establish a link to not yet
+(or no longer) connected servers. Default: 60.
+.TP
+\fBIdleTimeout\fR (number)
+Number of seconds after which the whole daemon should shutdown when no
+connections are left active after handling at least one client (0: never). This
+can be useful for testing or when ngIRCd is started using "socket activation"
+with systemd(8), for example. Default: 0.
+.TP
+\fBMaxConnections\fR (number)
+Maximum number of simultaneous in- and outbound connections the server is
+allowed to accept (0: unlimited). Default: 0.
+.TP
+\fBMaxConnectionsIP\fR (number)
+Maximum number of simultaneous connections from a single IP address that
+the server will accept (0: unlimited). This configuration options lowers
+the risk of denial of service attacks (DoS). Default: 5.
+.TP
+\fBMaxJoins\fR (number)
+Maximum number of channels a user can be member of (0: no limit).
+Default: 10.
+.TP
+\fBMaxNickLength\fR (number)
+Maximum length of an user nickname (Default: 9, as in RFC 2812). Please
+note that all servers in an IRC network MUST use the same maximum nickname
+length!
+.TP
+\fBMaxListSize\fR (number)
+Maximum number of channels returned in response to a LIST command. Default: 100.
+.TP
+\fBPingTimeout\fR (number)
+After <PingTimeout> seconds of inactivity the server will send a PING to
+the peer to test whether it is alive or not. Default: 120.
+.TP
+\fBPongTimeout\fR (number)
+If a client fails to answer a PING with a PONG within <PongTimeout>
+seconds, it will be disconnected by the server. Default: 20.
+.SH [OPTIONS]
+Optional features and configuration options to further tweak the behavior of
+ngIRCd. If you want to get started quickly, you most probably don't have to
+make changes here -- they are all optional.
+.TP
+\fBAllowedChannelTypes\fR (string)
+List of allowed channel types (channel prefixes) for newly created channels
+on the local server. By default, all supported channel types are allowed.
+Set this variable to the empty string to disallow creation of new channels
+by local clients at all. Default: #&+
+.TP
+\fBAllowRemoteOper\fR (boolean)
+Are IRC operators connected to remote servers allowed to control this server,
+e.g. are they allowed to use administrative commands like CONNECT, DIE,
+SQUIT, ... that affect this server? Default: no.
+.TP
+\fBChrootDir\fR (string)