  <chapter id="commands">
    <title>Operator Commands</title>
    <sect1>
      <title>Network management commands</title>
      <note>
	<para>
	  All commands and names are case insensitive.
	  Parameters consisting of one or more separate letters,
	  such as in MODE, STATS and WHO, are case sensitive.
	</para>
      </note>
      <sect2>
	<title>CONNECT</title>
	<cmdsynopsis><command>CONNECT</command> 
	  <arg choice=plain><replaceable>target</replaceable></arg> 
	  <arg><replaceable>port</replaceable></arg> 
	  <arg><replaceable>source</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Initiate a connection attempt to server <replaceable class=parameter>target</replaceable>. If a port is
	  given, connect to that port on the target, otherwise use the one given in <filename>ircd.conf</filename>. If 
	  <replaceable class=parameter>source</replaceable> is given, tell that server to initiate the connection
	  attempt, otherwise it will be made from the server you are attached to.
	</para>
	<para>
	  To use the default port with <replaceable class=parameter>source</replaceable>,
	  specify 0 for <replaceable class=parameter>port</replaceable>.
	</para>
      </sect2>
      <sect2>
	<title>SQUIT</title>
	<cmdsynopsis>
	  <command>SQUIT</command>
	  <arg choice=plain><replaceable>server</replaceable></arg>
	  <arg><replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Closes down the link to <replaceable>server</replaceable> from this side of the network. If a reason is
	  given, it will be sent out in the server notices on both sides of the link.
	</para>
      </sect2>
      <sect2>
	<title>REHASH</title>
	<cmdsynopsis>
	  <command>REHASH</command>
	  <group>
	    <arg>BANS</arg>
	    <arg>DNS</arg>
	    <arg>MOTD</arg>
	    <arg>OMOTD</arg>
	    <arg>TKLINES</arg>
	    <arg>TDLINES</arg>
	    <arg>TXLINES</arg>
	    <arg>TRESVS</arg>
	    <arg>REJECTCACHE</arg>
	    <arg>HELP</arg>
	  </group>
	  <arg><replaceable>server</replaceable></arg>
	</cmdsynopsis>
	<para>
	  With no parameter given, <filename>ircd.conf</filename> will be reread and parsed.
	  The server argument is a wildcard match of server names.
	</para>
	<variablelist>
	  <title>Parameters</title>
	  <varlistentry>
	    <term>BANS</term>
	    <listitem>
	      <para>Rereads <filename>kline.conf</filename>, <filename>dline.conf</filename>, <filename>xline.conf</filename>, <filename>resv.conf</filename> and their .perm variants</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>DNS</term>
	    <listitem>
	      <para>Reread <filename>/etc/resolv.conf</filename>.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>MOTD</term>
	    <listitem>
	      <para>Reload the MOTD file</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>OMOTD</term>
	    <listitem>
	      <para>Reload the operator MOTD file</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>TKLINES</term>
	    <listitem>
	      <para>Clears temporary K:lines.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>TDLINES</term>
	    <listitem>
	      <para>Clears temporary D:lines.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>TXLINES</term>
	    <listitem>
	      <para>Clears temporary X:lines.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>TRESVS</term>
	    <listitem>
	      <para>Clears temporary reservations.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>REJECTCACHE</term>
	    <listitem>
	      <para>Clears the client rejection cache.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>HELP</term>
	    <listitem>
	      <para>Refreshes the help system cache.</para>
	    </listitem>
	  </varlistentry>
	</variablelist>
      </sect2>
      <sect2>
	<title>RESTART</title>
	<cmdsynopsis>
	  <command>RESTART</command>
	  <arg choice=plain><replaceable>server</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Cause an immediate total shutdown of the IRC server, and restart from scratch as if it had just been executed.
	</para>
	<para>
	  This reexecutes the ircd using the compiled-in path, visible
	  as SPATH in INFO.
	</para>
	<note>
	  <para>This command cannot be used remotely. The server name is used only as a safety measure.</para>
	</note>
      </sect2>
      <sect2>
	<title>DIE</title>
	<cmdsynopsis>
	  <command>DIE</command>
	  <arg choice=plain><replaceable>server</replaceable></arg>
	</cmdsynopsis>
	<para>Immediately terminate the IRC server, after sending notices to all connected clients and servers</para>
	<note>
	  <para>This command cannot be used remotely. The server name is used only as a safety measure.</para>
	</note>
      </sect2>
      <sect2>
	<title>SET</title>
	<cmdsynopsis>
	  <command>SET</command>
	  <group>
	    <arg>ADMINSTRING</arg>
	    <arg>AUTOCONN</arg>
	    <arg>AUTOCONNALL</arg>
	    <arg>FLOODCOUNT</arg>
	    <arg>IDENTTIMEOUT</arg>
	    <arg>MAX</arg>
	    <arg>OPERSTRING</arg>
	    <arg>SPAMNUM</arg>
	    <arg>SPAMTIME</arg>
	    <arg>SPLITMODE</arg>
	    <arg>SPLITNUM</arg>
	    <arg>SPLITUSERS</arg>
	  </group>
	  <arg choice=plain><replaceable>value</replaceable></arg>
	</cmdsynopsis>
	<para>The SET command sets a runtime-configurable value.</para>
	<para>
	  Most of the <filename>ircd.conf</filename> equivalents have
	  a default_ prefix and are only read on startup. SET is the only
	  way to change these at run time.
	</para>
	<para>
	  Most of the values can be queried by omitting
	  <replaceable>value</replaceable>.
	</para>
	<variablelist>
	  <varlistentry>
	    <term>ADMINSTRING</term>
	    <listitem><para>
	      Sets string shown in WHOIS for admins.
	      (umodes +o and +a set, umode +S not set).
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>AUTOCONN</term>
	    <listitem><para>
	      Sets auto-connect on or off for a particular server.
	      Takes two parameters, server name and new state.
	    </para><para>
	      To see these values, use /stats c.
	      Changes to this are lost on a rehash.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>AUTOCONNALL</term>
	    <listitem><para>
	      Globally sets auto-connect on or off. If disabled, no automatic
	      connections are done; if enabled, automatic connections are done
	      following the rules for them.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>FLOODCOUNT</term>
	    <listitem><para>
	      The number of lines allowed to be sent to a connection before
	      throttling it due to flooding.
	      Note that this variable is used for both
	      channels and clients.
	    </para><para>
	      For channels, op or voice overrides this; for users, IRC
	      operator status or op or voice on a common channel overrides
	      this.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>IDENTTIMEOUT</term>
	    <listitem><para>
	      Timeout for requesting ident from a client.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>MAX</term>
	    <listitem><para>
	      Sets the maximum number of connections
	      to <replaceable>value</replaceable>.
	    </para><para>
	      This number cannot exceed maxconnections - MAX_BUFFER.
	      maxconnections is the rlimit for number of open files.
	      MAX_BUFFER is defined in config.h, normally 60.
	    </para><para>
	      MAXCLIENTS is an alias for this.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>OPERSTRING</term>
	    <listitem><para>
	      Sets string shown in WHOIS for opers
	      (umode +o set, umodes +a and +S not set).
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>SPAMNUM</term>
	    <listitem><para>
	      Sets how many join/parts to channels
	      constitutes a possible spambot.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>SPAMTIME</term>
	    <listitem><para>
	      Below this time on a channel
	      counts as a join/part as above.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>SPLITMODE</term>
	    <listitem><para>
	      Sets splitmode to <replaceable>value</replaceable>:
	      <variablelist>
	        <varlistentry>
                  <term>ON</term>
		  <listitem><para>splitmode is permanently on</para></listitem>
		</varlistentry>
	        <varlistentry>
                  <term>OFF</term>
		  <listitem><para>splitmode is permanently off (default if no_create_on_split and no_join_on_split are disabled)</para></listitem>
		</varlistentry>
	        <varlistentry>
                  <term>AUTO</term>
		  <listitem><para>ircd chooses splitmode based on SPLITUSERS and SPLITNUM (default if no_create_on_split or no_join_on_split are enabled)</para></listitem>
		</varlistentry>
	      </variablelist>
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>SPLITUSERS</term>
	    <listitem><para>
	      Sets the minimum amount of users needed to
	      deactivate automatic splitmode.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>SPLITNUM</term>
	    <listitem><para>
	      Sets the minimum amount of servers needed to
	      deactivate automatic splitmode.
	      Only servers that have finished bursting count for this.
	    </para></listitem>
	  </varlistentry>
	</variablelist>
      </sect2>
    </sect1>
    <sect1 id="usercommands">
      <title>User management commands</title>
      <sect2>
	<title>KILL</title>
	<cmdsynopsis>
	  <command>KILL</command>
	  <arg choice=plain><replaceable>nick</replaceable></arg>
	  <arg><replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Disconnects the user with the given nick from the server they are connected to,
	  with the reason given, if present, and broadcast a server notice announcing this.
	</para>
	<para>
	  Your nick and the reason will appear on channels.
	</para>
      </sect2>
      <sect2>
	<title>CLOSE</title>
	<para>
	  Closes all connections from and to clients and servers who have not completed registering.
	</para>
      </sect2>
      <sect2>
	<title>KLINE</title>
	<cmdsynopsis>
	  <command>KLINE</command>
	  <arg><replaceable>length</replaceable></arg>
	  <group>
	    <arg choice=plain><replaceable>user</replaceable>@<replaceable>host</replaceable></arg>
	    <arg choice=plain><replaceable>user</replaceable>@<replaceable>a</replaceable>.<replaceable>b</replaceable>.<replaceable>c</replaceable>.<replaceable>d</replaceable></arg>
	  </group>
	  <arg>ON <replaceable>servername</replaceable></arg>
	  <arg>:<replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Adds a K:line to <filename>kline.conf</filename> to ban the given user@host from using that
	  server.
	</para>
	<para>
	  If the optional parameter <replaceable>length</replaceable> is given, the K:line will
	  be temporary (i.e. it will not be stored on disk) and last that
	  long in minutes.
	</para>
	<para>
	  If an IP address is given, the ban will be against all hosts matching that IP regardless
	  of DNS. The IP address can be given as a full address (192.168.0.1), as a CIDR mask
	  (192.168.0.0/24), or as a glob (192.168.0.*).
	</para>
	<para>
	  All clients matching the K:line will be disconnected from the server immediately.
	</para>
	<para>
	  If a reason is specified, it will be sent to the client when they are disconnected, and
	  whenever a connection is attempted which is banned.
	</para>
	<para>
	  If the ON part is specified, the K:line is set on servers matching
	  the given mask (provided a matching shared{} block exists there).
	  Otherwise, if specified in a cluster{} block, the K:Line will be
	  propagated across the network accordingly.
	</para>
      </sect2>
      <sect2>
	<title>UNKLINE</title>
	<cmdsynopsis>
	  <command>UNKLINE</command>
	  <arg choice=plain><replaceable>user</replaceable>@<replaceable>host</replaceable></arg>
	  <arg>ON <replaceable>servername</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Will attempt to remove a K:line matching user@host from <filename>kline.conf</filename>, and will flush
	  a temporary K:line.
	</para>
      </sect2>
      <sect2>
	<title>XLINE</title>
	<cmdsynopsis>
	  <command>XLINE</command>
	  <arg><replaceable>length</replaceable></arg>
	  <arg choice=plain><replaceable>mask</replaceable></arg>
	  <arg>ON <replaceable>servername</replaceable></arg>
	  <arg>:<replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Works similarly to KLINE, but matches against the real name field.
	  The wildcards are * (any sequence), ? (any character),
	  # (a digit) and @ (a letter); wildcard characters can be
	  escaped with a backslash. The sequence \s matches a space.
	</para>
	<para>
	  All clients matching the X:line will be disconnected from the server immediately.
	</para>
	<para>
	  The reason is never sent to users. Instead, they will be exited
	  with <quote>Bad user info</quote>.
	</para>
	<para>
	  If the ON part is specified, the X:line is set on servers matching
	  the given mask (provided a matching shared{} block exists there).
	  Otherwise, if specified in a cluster{} block, the X:line will be
	  propagated across the network accordingly.
	</para>
      </sect2>
      <sect2>
	<title>UNXLINE</title>
	<cmdsynopsis>
	  <command>UNXLINE</command>
	  <arg choice=plain><replaceable>mask</replaceable></arg>
	  <arg>ON <replaceable>servername</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Will attempt to remove an X:line from <filename>xline.conf</filename>, and will flush
	  a temporary X:line.
	</para>
      </sect2>
      <sect2>
	<title>RESV</title>
	<cmdsynopsis>
	  <command>RESV</command>
	  <arg><replaceable>length</replaceable></arg>
	  <group>
	    <arg choice=plain><replaceable>channel</replaceable></arg>
	    <arg choice=plain><replaceable>mask</replaceable></arg>
	  </group>
	  <arg>ON <replaceable>servername</replaceable></arg>
	  <arg>:<replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  If used on a channel, <quote>jupes</quote> the channel locally. Joins to the
	  channel will be disallowed and generate a server notice on +y, and
	  users will not be able to send to the channel. Channel jupes cannot
	  contain wildcards.
	</para>
	<para>
	  If used on a nickname mask, prevents local users from using a nick
	  matching the mask (the same wildcard characters as xlines). There
	  is no way to exempt the initial nick from this.
	</para>
	<para>
	  In neither case will current users of the nick or channel be
	  kicked or disconnected.
	</para>
	<para>
	  This facility is not designed to make certain nicks
	  or channels oper-only.
	</para>
	<para>
	  The reason is never sent to users.
	</para>
	<para>
	  If the ON part is specified, the resv is set on servers matching
	  the given mask (provided a matching shared{} block exists there).
	  Otherwise, if specified in a cluster{} block, the resv will be
	  propagated across the network accordingly.
	</para>
      </sect2>
      <sect2>
	<title>UNRESV</title>
	<cmdsynopsis>
	  <command>UNRESV</command>
	  <group>
	    <arg choice=plain><replaceable>channel</replaceable></arg>
	    <arg choice=plain><replaceable>mask</replaceable></arg>
	  </group>
	  <arg>ON <replaceable>servername</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Will attempt to remove a resv from <filename>resv.conf</filename>, and will flush
	  a temporary resv.
	</para>
      </sect2>
      <sect2>
	<title>DLINE</title>
	<cmdsynopsis>
	  <command>DLINE</command>
	  <arg><replaceable>length</replaceable></arg>
	  <arg choice=plain><replaceable>a</replaceable>.<replaceable>b</replaceable>.<replaceable>c</replaceable>.<replaceable>d</replaceable></arg>
	  <arg>ON <replaceable>servername</replaceable></arg>
	  <arg>:<replaceable>reason</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Adds a D:line to <filename>dline.conf</filename>, which will deny any connections
	  from the given IP address.
	  The IP address can be given as a full address (192.168.0.1) or
	  as a CIDR mask (192.168.0.0/24).
	</para>
	<para>
	  If the optional parameter <replaceable>length</replaceable> is given, the D:line will
	  be temporary (i.e. it will not be stored on disk) and last that
	  long in minutes.
	</para>
	<para>
	  All clients matching the D:line will be disconnected from the server immediately.
	</para>
	<para>
	  If a reason is specified, it will be sent to the client when they are disconnected, and,
	  if dline_reason is enabled,
	  whenever a connection is attempted which is banned.
	</para>
	<para>
	  D:lines are less load on a server, and may be more appropriate if somebody is flooding
	  connections.
	</para>
	<para>
	  If the ON part is specified, the D:line is set on servers matching
	  the given mask (provided a matching shared{} block exists there,
	  which is not the case by default).
	  Otherwise, the D:Line will be set on the local server only.
	</para>
	<para>
	  Only exempt{} blocks exempt from D:lines.
	  Being a server or having kline_exempt in auth{} does
	  <emphasis>not</emphasis> exempt (different from K/G/X:lines).
	</para>
      </sect2>
      <sect2>
	<title>UNDLINE</title>
	<cmdsynopsis>
	  <command>UNDLINE</command>
	  <arg choice=plain><replaceable>a.b.c.d</replaceable></arg>
	  <arg>ON <replaceable>servername</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Will attempt to remove a D:line from <filename>dline.conf</filename>, and will flush
	  a temporary D:line.
	</para>
      </sect2>
      <sect2>
	<title>TESTGECOS</title>
	<cmdsynopsis>
	  <command>TESTGECOS</command>
	  <arg choice=plain><replaceable>gecos</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Looks up X:Lines matching the given gecos.
	</para>
      </sect2>
      <sect2>
	<title>TESTLINE</title>
	<cmdsynopsis>
	  <command>TESTLINE</command>
	  <arg><replaceable>nick</replaceable>!</arg>
	  <group>
	    <arg choice=plain><replaceable>user</replaceable>@<replaceable>host</replaceable></arg>
	    <arg choice=plain><replaceable>a</replaceable>.<replaceable>b</replaceable>.<replaceable>c</replaceable>.<replaceable>d</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Looks up the given hostmask or IP address and reports back on any auth{} blocks, D: or K: lines found.
	  If <replaceable>nick</replaceable> is given, also searches for
	  nick resvs.
	</para>
	<para>
	  For temporary items the number of minutes until the item expires
	  is shown (as opposed to the hit count in STATS q/Q/x/X).
	</para>
        <para>
	  This command will not perform DNS lookups; for best
	  results you must testline a host and its IP form.
        </para>
	<para>
	  The given username should begin with a tilde (~) if identd is not
	  in use. As of charybdis 2.1.1, no_tilde and username truncation will
	  be taken into account like in the normal client access check.
	</para>
	<para>
	  As of charybdis 2.2.0, a channel name can be specified and the
	  RESV will be returned, if there is one.
	</para>
      </sect2>
      <sect2>
	<title>TESTMASK</title>
        <cmdsynopsis>
          <command>TESTMASK</command>
          <arg choice=plain><replaceable>hostmask</replaceable></arg>
	  <arg><replaceable>gecos</replaceable></arg>
        </cmdsynopsis>
	<para>
          Searches the network for users that match the hostmask and gecos given,
	  returning the number of matching users on this server and other servers.
	</para>
	<para>
	  The <replaceable>hostmask</replaceable> is of the form user@host
	  or user@ip/cidr with * and ? wildcards, optionally preceded by
	  nick!.
	</para>
	<para>
	  The <replaceable>gecos</replaceable> field accepts the same wildcards
	  as xlines.
	</para>
	<para>
	  The IP address checked against is 255.255.255.255 if the IP address
	  is unknown (remote client on a TS5 server) or 0 if the IP address
	  is hidden (auth{} spoof).
	</para>
      </sect2>
      <sect2>
	<title>LUSERS</title>
	<cmdsynopsis>
	  <command>LUSERS</command>
	  <arg><replaceable>mask</replaceable></arg>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Shows various user and channel counts.
	</para>
	<para>
	  The <replaceable>mask</replaceable> parameter is obsolete
	  but must be used when querying a remote server.
	</para>
      </sect2>
      <sect2>
	<title>TRACE</title>
	<cmdsynopsis>
	  <command>TRACE</command>
	  <group>
	    <arg><replaceable>server</replaceable></arg>
	    <arg><replaceable>nick</replaceable></arg>
	  </group>
	  <arg><replaceable>location</replaceable></arg>
	</cmdsynopsis>
	<para>
	  With no argument or one argument which is the current server,
	  TRACE gives a list of all connections to the current server
	  and a summary of connection classes.
	</para>
	<para>
	  With one argument which is another server, TRACE displays the path 
	  to the specified server, and all servers, opers and -i users
	  on that server, along with a summary of connection classes.
	</para>
	<para>
	  With one argument which is a client, TRACE displays the
	  path to that client, and that client's information.
	</para>
	<para>
	  If location is given, the command is executed on that server;
	  no path is displayed.
	</para>
	<para>
	  When listing connections, type, name and class is shown
	  in addition to information depending on the type:
	</para>
	<variablelist>
	  <title>TRACE types</title>
	  <varlistentry>
	    <term>Try.</term>
	    <listitem><para>
	      A server we are trying to make a TCP connection to.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>H.S.</term>
	    <listitem><para>
	      A server we have established a TCP connection to, but is not
	      yet registered.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>????</term>
	    <listitem><para>
	      An incoming connection that has not yet registered as
	      a user or a server (<quote>unknown</quote>).
	      Shows the username, hostname, IP address
	      and the time the connection has been open. It is possible
	      that the ident or DNS lookups have not completed yet, and in
	      any case no tildes are shown here.
	      Unknown connections may not have a name yet.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>User</term>
	    <listitem><para>
	      A registered unopered user.
	      Shows the username, hostname, IP address, the time the client
	      has not sent anything (as in STATS l) and the time the user has
	      been idle (from PRIVMSG only, as in WHOIS).
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>Oper</term>
	    <listitem><para>
	      Like User, but opered.
	    </para></listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>Serv</term>
	    <listitem><para>
	      A registered server.
	      Shows the number of servers and users reached via this link,
	      who made this connection and the time the server has not sent
	      anything.
	    </para></listitem>
	  </varlistentry>
	</variablelist>
      </sect2>
      <sect2>
	<title>ETRACE</title>
	<cmdsynopsis>
	  <command>ETRACE</command>
	  <arg><replaceable>nick</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Shows client information about the given target, or about all local clients if
	  no target is specified.
	</para>
      </sect2>
      <sect2>
	<title>PRIVS</title>
	<cmdsynopsis>
	  <command>PRIVS</command>
	  <arg><replaceable>nick</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Displays effective operator privileges for
	  the specified nick, or for yourself if no nick is
	  given. This includes all privileges from the operator
	  block, the name of the operator block and those
	  privileges from the auth block that have an effect
	  after the initial connection.
	</para>
	<para>
	  The exact output depends on the server the nick is on,
	  see the matching version of this document.
	  If the remote server does not support this extension, you will not
	  receive a reply.
	</para>
      </sect2>
      <sect2>
        <title>MASKTRACE</title>
        <cmdsynopsis>
          <command>MASKTRACE</command>
          <arg choice=plain><replaceable>hostmask</replaceable></arg>
	  <arg><replaceable>gecos</replaceable></arg>
        </cmdsynopsis>
        <para>
          Searches the local server or network for users that match the hostmask and gecos given.
	  Network searches require the oper_spy privilege and an '!'
	  before the hostmask.
	  The matching works the same way as TESTMASK.
        </para>
	<para>
	  The <replaceable>hostmask</replaceable> is of the form user@host
	  or user@ip/cidr with * and ? wildcards, optionally preceded by
	  nick!.
	</para>
	<para>
	  The <replaceable>gecos</replaceable> field accepts the same wildcards
	  as xlines.
	</para>
	<para>
	  The IP address field contains 255.255.255.255 if the IP address
	  is unknown (remote client on a TS5 server) or 0 if the IP address
	  is hidden (auth{} spoof).
	</para>
      </sect2>
      <sect2>
        <title>CHANTRACE</title>
        <cmdsynopsis>
          <command>CHANTRACE</command>
          <arg choice=plain><replaceable>channel</replaceable></arg>
        </cmdsynopsis>
        <para>
	  Displays information about users in a channel.
	  Opers with the oper_spy privilege
	  can get the information without being on the channel,
	  by prefixing the channel name with an '!'.
        </para>
	<para>
	  The IP address field contains 255.255.255.255 if the IP address
	  is unknown (remote client on a TS5 server) or 0 if the IP address
	  is hidden (auth{} spoof).
	</para>
      </sect2>
      <sect2>
        <title>SCAN</title>
        <cmdsynopsis>
          <command>SCAN UMODES</command>
          <arg choice=plain>+<replaceable>modes</replaceable>-<replaceable>modes</replaceable></arg>
	  <arg>no-list</arg>
	  <arg>list</arg>
	  <arg>global</arg>
	  <arg>list-max <replaceable>number</replaceable></arg>
	  <arg>mask <replaceable>nick!user@host</replaceable></arg>
        </cmdsynopsis>
        <para>
          Searches the local server or network for users that have the umodes given with + and do not have the umodes given with -.
          no-list disables the listing of matching users and only shows the count.
	  list enables the listing (default).
	  global extends the search to the entire network instead of local users only.
	  list-max limits the listing of matching users to the given amount.
	  mask causes only users matching the given nick!user@host mask
	  to be selected. Only the displayed host is considered, not the
	  IP address or real host behind dynamic spoofs.
	</para>
	<para>
	  The IP address field contains 255.255.255.255 if the IP address
	  is unknown (remote client on a TS5 server) or 0 if the IP address
	  is hidden (auth{} spoof).
	</para>
	<para>
	  Network searches where a listing is given
	  are operspy commands.
        </para>
      </sect2>
      <sect2>
	<title>CHGHOST</title>
	<cmdsynopsis>
	  <command>CHGHOST</command>
	  <arg choice=plain><replaceable>nick</replaceable></arg>
	  <arg choice=plain><replaceable>value</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Set the hostname associated with a particular nick for the duration of this session.
	  This command is disabled by default because of the abuse potential
	  and little practical use.
	</para>
      </sect2>
    </sect1>
    <sect1 id="misccommands">
      <title>Miscellaneous commands</title>
      <sect2>
	<title>ADMIN</title>
	<cmdsynopsis>
	  <command>ADMIN</command>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Shows the information in the admin{} block.
	</para>
      </sect2>
      <sect2>
	<title>INFO</title>
	<cmdsynopsis>
	  <command>INFO</command>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Shows information about the authors of the IRC server, and
	  some information about this server instance.
	  Opers also get a list of configuration options.
	</para>
      </sect2>
      <sect2>
	<title>TIME</title>
	<cmdsynopsis>
	  <command>TIME</command>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Shows the local time on the given server, in a human-readable format.
	</para>
      </sect2>
      <sect2>
	<title>VERSION</title>
	<cmdsynopsis>
	  <command>VERSION</command>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Shows version information, a few compile/config options,
	  the SID and the 005 numerics.
	  The 005 numeric will be remapped to 105 for remote requests.
	</para>
      </sect2>
      <sect2>
	<title>STATS</title>
	<cmdsynopsis>
	  <command>STATS</command>
	  <arg><replaceable>type</replaceable></arg>
	  <group>
	    <arg><replaceable>nick</replaceable></arg>
	    <arg><replaceable>server</replaceable></arg>
	  </group>
	</cmdsynopsis>
	<para>
	  Display various statistics and configuration information.
	</para>
	<variablelist>
	  <title>Values for <replaceable>type</replaceable></title>
	  <varlistentry>
	    <term>A</term>
	    <listitem>
	      <para>Show DNS servers</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>b</term>
	    <listitem>
	      <para>Show active nick delays</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>B</term>
	    <listitem>
	      <para>Show hash statistics</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>c</term>
	    <listitem>
	      <para>Show connect blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>d</term>
	    <listitem>
	      <para>Show temporary D:lines</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>D</term>
	    <listitem>
	      <para>Show permanent D:lines</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>e</term>
	    <listitem>
	      <para>Show exempt blocks (exceptions to D:lines)</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>E</term>
	    <listitem>
	      <para>Show events</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>f</term>
	    <listitem>
	      <para>Show file descriptors</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>h</term>
	    <listitem>
	      <para>Show hub_mask/leaf_mask</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>i</term>
	    <listitem>
	      <para>Show auth blocks, or matched auth blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>k</term>
	    <listitem>
	      <para>Show temporary K:lines, or matched K:lines</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>K</term>
	    <listitem>
	      <para>Show permanent K:lines, or matched K:lines</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>l</term>
	    <listitem>
	      <para>
		Show hostname and link information about the given nick.
		With a server name, show information about opers and servers
		on that server; opers get information about all local
		connections if they query their own server.
		No hostname is shown for server connections.
	      </para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>L</term>
	    <listitem>
	      <para>Like l, but show IP address instead of hostname</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>m</term>
	    <listitem>
	      <para>Show commands and their usage statistics (total counts, total bytes, counts from server connections)</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>n</term>
	    <listitem>
	      <para>Show blacklist blocks (DNS blacklists) with hit counts since last rehash and (parenthesized) reference counts. The reference count shows how many clients are waiting on a lookup of this blacklist or have been found and are waiting on registration to complete.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>o</term>
	    <listitem>
	      <para>Show operator blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>O</term>
	    <listitem>
	      <para>Show privset blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>p</term>
	    <listitem>
	      <para>Show logged on network operators which are not set AWAY.</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>P</term>
	    <listitem>
	      <para>Show listen blocks (ports)</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>q</term>
	    <listitem>
	      <para>Show temporarily resv'ed nicks and channels with hit counts</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>Q</term>
	    <listitem>
	      <para>Show permanently resv'ed nicks and channels with hit counts since last rehash bans</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>r</term>
	    <listitem>
	      <para>Show resource usage by the ircd</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>t</term>
	    <listitem>
	      <para>Show generic server statistics about local connections</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>u</term>
	    <listitem>
	      <para>Show server uptime</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>U</term>
	    <listitem>
	      <para>Show shared (c), cluster (C) and service (s) blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>v</term>
	    <listitem>
	      <para>Show connected servers and brief status</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>x</term>
	    <listitem>
	      <para>Show temporary X:lines with hit counts</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>X</term>
	    <listitem>
	      <para>Show permanent X:lines with hit counts since last rehash bans</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>y</term>
	    <listitem>
	      <para>Show class blocks</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>z</term>
	    <listitem>
	      <para>Show memory usage statistics</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>Z</term>
	    <listitem>
	      <para>Show ziplinks statistics</para>
	    </listitem>
	  </varlistentry>
	  <varlistentry>
	    <term>?</term>
	    <listitem>
	      <para>Show connected servers and link information about them</para>
	    </listitem>
	  </varlistentry>
	</variablelist>
      </sect2>
      <sect2>
	<title>WALLOPS</title>
	<cmdsynopsis>
	  <command>WALLOPS</command>
	  <arg choice=plain>:<replaceable>message</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Sends a WALLOPS message to all users who have the +w umode set. This is for
	  things you don't mind the whole network knowing about.
	</para>
      </sect2>
      <sect2>
	<title>OPERWALL</title>
	<cmdsynopsis>
	  <command>OPERWALL</command>
	  <arg choice=plain>:<replaceable>message</replaceable></arg>
	</cmdsynopsis>
	<para>
	  Sends an OPERWALL message to all opers who have the +z umode set. +z is restricted,
	  OPERWALL should be considered private communications.
	</para>
      </sect2>
    </sect1>
  </chapter>
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