Provided by: bzflag-server_2.4.22-1build1_amd64 bug

NAME

       bzfs - BZFlag game server

SYNOPSIS

       bzfs    [-a    linear    angular]   [-adminlagannounce   milliseconds]   [-admsg   message]   [-advertise
       groupname[,groupname]...]   [-autoTeam]  [-b]  [-badwords  badwordfile]  [-ban   ip[,ip]...]    [-banfile
       filename]  [-c]  [-cache worldCacheURL] [-cacheout filename] [-conf configfile] [-cr] [-d] [-density num]
       [-disableBots] [+f {good | bad | team  |   |  flag-id}[{count}]]  [-f  {good  |  bad  |  flag-id}]  [-fb]
       [-filterCallsigns]  [-filterChat]  [-filterSimple]  [-g]  [-gndtex  texture-name]  [-groupdb  file]  [-h]
       [-handicap] [-help] [-helpmsg file  name]  [-i  interface]  [-j]  [-jitterdrop  warn-count]  [-jitterwarn
       milliseconds]  [-lagannounce  milliseconds]  [-lagdrop  warn-count]  [-lagwarn milliseconds] [-loadplugin
       name[,options]]  [-masterBanURL  URL]  [-maxidle  seconds]  [-mp  {count    |      [rogue-count],   [red-
       count],  [green-count],  [blue-count],  [purple-count],  [observer-count]}]  [-mps max-score] [-ms shots]
       [-mts  max-score]  [-noMasterBanlist]  [-noradar]  [-noTeamKills]  [-offa]  [-p  port]   [-packetlossdrop
       warn-count]  [-packetlosswarn  percent]  [-passwd  password]  [-pidfile  filename] [-poll variable=value]
       [-printscore] [-publictitle description] [-publicaddr address[:port]] [-publiclist url] [-publickey  key]
       [-q]  [+r] [-rabbit [score | killer | random]] [-recbuf size] [-recbufonly] [-recdir directory] [-replay]
       [-reportfile filename] [-reportpipe command] [+s flag-count]  [-s  flag-count]  [-sa]  [-sb]  [-set  name
       value]  [-setforced  name  value]  [-sl id num] [-spamtime time] [-spamwarn warnLimit] [-speedtol factor]
       [-srvmsg message] [-st time] [-sw count] [-synclocation] [-synctime] [-t] [-tftimeout time-limit]  [-time
       {time-limit  |  ending-time}]  [-timemanual]  [-tk]  [-tkannounce] [-tkkr percent] [-ts [micros]] [-UPnP]
       [-userdb file] [-vars file] [-version] [-world world-file] [-worldsize world size]

DESCRIPTION

       Bzfs is the server for BZFlag, and it must be running to play.  It can  be  run  on  any  system  on  the
       network  (including  a  player's  system or one without graphics).  Terminating the server terminates the
       game in progress.

OPTIONS

       -a linear angular
                      Sets the maximum linear and angular accelerations.  The units are  somewhat  arbitrary  so
                      you'll  have to experiment to find suitable values. Positive values will set limits to the
                      acceleration and lower they are, greater is the inertia.  Zero or negative values  disable
                      acceleration limits.

       -adminlagannounce milliseconds
                      Announce players that lag more than milliseconds to admins.

       -admsg message Define a message which will be broadcast to all players every 15 minutes.  This option can
                      be used multiple times to define a multiline message.

       -advertise groupname,groupname,...
                      Allows control of who can see this server on the server list.   Use:  -advertise  NONE  to
                      make  a  private  server  (no one will see the server, but global logins can be used). The
                      default, if -advertise is  not  specified,  is  to  allow  everyone  to  see  the  server.
                      Otherwise, your server will only be listed to members of the groups which you specify, eg:
                      -advertise JOE,BOB.

       -autoTeam      Automatically assign players to teams when they connect so that there are an equal  number
                      of  players  on  all  available  teams.   Players are placed on teams that have the fewest
                      players; otherwise they will be placed on the weakest team.  Weakest team is the team with
                      the lowest combined kill ratio.

       -b             When -c is supplied, this option randomly rotates the buildings.

       -badwords badwordfile
                      Specify  a  file that contains bad words that will be used when either -filterCallsigns or
                      -filterChat is enabled.

       -ban ip[,ip]...
                      Prohibits connections from the listed IP addresses. Trailing 255 bytes are treated as mask
                      bytes.

       -banfile filename
                      Specifies  the  name of a file where bzfs will store the banlist. It will load the banlist
                      from this file when it starts (if the file exists), and write the banlist back to the file
                      when  someone gets banned or unbanned.  If this option isn't given the banlist will not be
                      saved.

       -c             Enables the capture-the-flag style game. By default this allocates one team flag per team.
                      This can be modified see +f team. By default, the free-for-all style is used.

       -cache worldCacheURL
                      Specifies  the  URL  for  the  world  cache  file. This is a binary file that clients will
                      attempt to download before getting the world from the bzfs server.

       -cacheout filename
                      Save the currently specified world into a binary cache file and exit.

       -conf configfilename
                      Specifies the name of a configuration file to be used to set  all  of  the  bzfs  options,
                      rather than setting them on the command line.

       -cr            Enables  the  capture-the-flag  style  game with random map.  You can optionally specify a
                      building density by providing a number  (default  is  5).   One  team  flag  per  team  is
                      provided, but more can be added thru +f team.  By default, the free-for-all style is used.

       -d             Increase debugging level. If more -d is given, more debugging info is obtained.

       -density num   Specify  density for buildings, i.e. the higher the integer number, the more buildings you
                      will get. This applies to automatically generated maps only.

       -disableBots   Disallow clients from using the ROGER autopilot or from using robots.

       +f {good | bad | teamflag-id}[{count}]
                      Forces the existence of the given flag.  If specified multiple times for the same flag-id,
                      then  that  many flags will appear.  The good argument is equivalent to specifying +f once
                      for each kind of good flag. Same goes for the bad argument.  The team argument adds a team
                      flag  to each team, assuming that the game style is capture the flag. The optional {count}
                      parameter allows the specification of multiple flags of the same type. Note that the curly
                      braces are required.

       -f {good | bad | flag-id}
                      Disallows random flags of the given type.  Required flags given by the +f option are still
                      provided.  The bad argument is equivalent to specifying -f once for each kind of bad flag.
                      Same goes for good, but you probably do not want to do that.
                      An  example  of running a server with 40 to 50 flags except genocide would be "+s 40 -s 50
                      -f G".  Similarly, "+f good{40} +f bad{10} -f G{40}" would give you exactly 40 good  flags
                      except genocide and 10 of each bad flag.

       -fb            Allow flags on box buildings.

       -filterCallsigns
                      Turn  on the filtering of callsigns and mottos.  Callsigns and mottos are compared against
                      bad words provided via -badwords.

       -filterChat    Turn on the filtering of  chat  messages.   Messages  that  contain  words  listed  via  a
                      -badwords file are replaced with !@#$%^&* characters.

       -filterSimple  By  default,  all filtering is aggressive, matching much more than what is strictly listed
                      in a -badwords file for convenience.  Providing this option will make the -filterCallsigns
                      and -filterChat comparisons exact match only.

       -g             Quit after serving one game.

       -gndtex texture-name
                      Specify the name of the ground texture.

       -groupdb file  Load groups from file

       -h             Buildings are given random heights.

       -handicap      Players  are  given  a  handicap advantage based on their ability in relation to the other
                      players. Handicapped players will have faster tanks and shots. The handicap is  determined
                      by the player's score in relation to other players.

       -help          Shows a help page and lists all the valid flag id's.

       -helpmsg file name
                      Provide a message accessible by /help name, which sends no more than the first 50 lines of
                      file to the player.

       -i interface   Server will listen for and  respond  to  ``pings''  (sent  via  broadcast)  on  the  given
                      interface.  Clients use this to find active servers on the network. This is the TCP/UDP/IP
                      address the server will listen on.

       -j             Allows jumping.

       -jitterdrop warn-count
                      Kicks players after warn-count jitter warnings.

       -jitterwarn milliseconds
                      Send warnings to players that jitter more than milliseconds.

       -lagannounce milliseconds
                      Announce players that lag more than milliseconds in public.

       -lagdrop warn-count
                      Kicks players after warn-count lag warnings.

       -lagwarn milliseconds
                      Send warnings to players that lag more than milliseconds.

       -loadplugin name[,options]
                      Load the specified plugin. name can either be the name of the plugin, or  a  path  to  its
                      library file. Optionally, you can provide any options the plugin requires.

       -masterBanURL URL
                      Specify  alternate  URLs  for the master ban file to be pulled from.  This argument may be
                      provided multiple times.

       -maxidle seconds
                      Kick players that did not play longer than seconds. Pausing players are not kicked.  If  a
                      player uttered a word recently, he will be kicked after thrice the given time.

       -mp {count | [rogue],[red],[green],[blue],[purple],[observer]}
                      Sets  the  maximum  number  of  players, total or per team.  A single value sets the total
                      number of players allowed.  Five comma separated values set the maximum for each team.  If
                      a  count  is  left  blank  then no limit is set for that team, except for the limit on the
                      total number of players.  Both forms may be provided.  For rabbit chase, the "rogue" value
                      sets the total number of non-observer player, and all other values must be zero.

       -mps max-score Sets  a  maximum  score  for  individual players.  The first player to reach this score is
                      declared the winner and the game is over.

       -ms shots      Allows up to shots simultaneous shots for each player.  This is 1 by default.

       -mts max-score Sets a maximum score for teams.  The first team to reach this score is declared the winner
                      and the game is over.

       -noMasterBanlist
                      Server will not attempt to load the master ban list from the internet.

       -noradar       Disable the use of the radar.

       -noTeamKills   Players on the same team are immune to each other's shots. Rogue is excepted.

       -offa          Enables  the Open-Free-for-All style game. This is a teamless mode, similar to the classic
                      deathmatch in other games.

       -p port        Listen for game connections on port instead of the default port.  Use -help to  print  the
                      default port, or use -d debug printing.

       -packetlossdrop warn-count
                      Kicks players after warn-count packetloss warnings.

       -packetlosswarn percent
                      Send warnings to players that have more more than percent loss.

       -passwd password
                      Specify  a  server  administrator password for use in remote administration such as /kick,
                      /ban, /mute, etc.  messages.

       -pidfile filename
                      Specify a file where the server will write its process ID so it may  be  used  for  remote
                      administration.

       -poll variable=value
                      Configure several aspects of the in-game polling system

                      banTime
                             default  number  of  minutes  player should be banned (unspecified, the  default is
                             300)

                      vetoTime
                             max seconds authorized user has to abort poll (default is 20)

                      votePercentage
                             percentage of players required to affirm a poll (unspecified, the default is 50.1%)

                      voteRepeatTime
                             minimum seconds required before a player may request another vote (default is 300)

                      votesRequired
                             minimum number of additional votes required to make a vote valid (default is 2)

                      voteTime
                             maximum amount of time player has to vote, in seconds (default is 60)

       -printscore    Write score to stdout whenever it changes

       -publictitle description
                      Advertise this server on the internet with the given description.  By  default,  a  server
                      will  respond  to  broadcast  queries,  allowing  clients  to  find servers running on the
                      standard port on the local subnet.  The -publictitle option causes the server to  register
                      itself with a list server, which clients can query to get a list of bzfs servers.

       -publicaddr address[:port]
                      Advertise  this  server  with  the  given  address and port.  Normally a server advertises
                      itself at the local address and port.  Some servers are not accessible from  the  internet
                      at this address (for example servers behind a firewall using Network Address Translation).
                      Use this option to specify the address and/or port  that  internet  users  should  use  to
                      access this server.

       -publiclist url
                      Advertise  this  server  on  the list servers listed at url.  Only has an effect when used
                      with -publictitle and/or -publicaddr.  A built-in url is  used  by  default.   The  BZFlag
                      clients  use  the  same  built-in  url  so,  by  default,  clients will see public servers
                      automatically.  This argument may be provided multiple times  to  publicize  a  server  to
                      multiple list servers.

       -publickey key Advertise  this  server on the list server(s) using the specified key.  Only has an effect
                      when used with -publictitle and/or -publicaddr.

       -q             If specified, the server will not listen for nor respond to ``pings''.  BZFlag  sends  out
                      these  pings  to  give  the  user a list of available servers.  This effectively makes the
                      server private, especially if the -p option is also used.

       +r             Makes most shots ricochet.  Super bullets, shock waves, and guided missiles do not.

       -rabbit [score | killer | random]
                      Enables the rabbit-chase style game.  By default, the free-for-all  style  is  used.   You
                      must  specify  the  algorithm  used to pick a new rabbit when the old one dies.  The score
                      algorithm uses a modified wins/(wins+losses) score and picks the top scoring player to  be
                      the  new  rabbit.   The killer algorithm specifies a reverse tag game where whomever kills
                      the rabbit becomes the new rabbit.  The random  algorithm  randomly  picks  a  new  rabbit
                      without regard to score.  (The score algorithm is the original behavior.)

       -recbuf size   Start with the recording buffer active, with the specified size (in megabytes).

       -recbufonly    Disable recording straight to files

       -recdir directory
                      Specify the directory for record and replay files.

       -replay        Start the server in replay mode.

       -reportfile filename
                      Write  messages  to  the  server  admin written using the /report command to this file. If
                      neither -reportfile or -reportpipe is used the /report command will be disabled.

       -reportpipe command
                      Pipe messages to the server admin written using the /report command  to  this  program  or
                      shell command. See -reportfile.

       +s num-flags   The server will have an extra num-flags random super flags available at all times.  The -f
                      option can be used to restrict which types of flags will be added.  Required  flags  given
                      by the +f option are not included in the num-flags total.

       -s num-flags   The  server  will  have  up to num-flags random super flags available at any time.  The -f
                      option can be used to restrict which types of flags will be added.  Required  flags  given
                      by the +f option are not included in the num-flags total.

       -sa            Antidote flags are provided for players with bad flags.

       -sb            Allow spawns on box buildings.

       -set name value
                      Set BZDB variable name to value.

       -setforced name value
                      Set BZDB variable name to value, even if the variable does not exist.

       -sl id num     Restrict flag id to num shots.

       -spamtime time Minimum time between player chat messages that are alike.

       -spamwarn warnLimit
                      Number of warnings a player/spammer gets, who  violates -spamtime.

       -speedtol factor
                      Override  the  default speed auto kick factor. The factor should not be less then 1.0. The
                      factor is a multiplier.

       -srvmsg message
                      Define a server welcome message. This option can  be  used  multiple  times  to  define  a
                      multiline message.

       -st time       Bad flags are automatically dropped after time seconds.

       -sw count      Bad  flags  are  automatically  dropped  after count wins.  Capturing a team flag does not
                      count as a win.

       -synclocation  Forces all clients to use the same location (longitude and latitude).

       -synctime      Forces all clients to use the same time of day.  The current time  is  determined  by  the
                      server's clock.  This disables the + and - keys on the clients.

       -t             Adds teleporters to the game.

       -tftimeout time-limit
                      If the last player in a team leaves while someone else is carrying the team flag, the team
                      flag will not reset until it is captured, or until the player drops  it  and  it  is  left
                      alone  for  some time. This option specifies the number of seconds that the flag should be
                      left alone before it is reset. The default value is 30.

       -time {time-limit | ending-time}
                      Sets a time limit on the game to time-limit or  ending-time.  The  game  will  be  stopped
                      time-limit seconds after the first player connects, or at ending-time, whichever is given.
                      The ending-time should be given in hh:mm:ss format, but does not need  minute  and  second
                      arguments.  If only hour is given, it must end in ':'. Each unspecified argument is set to
                      0.

       -timemanual    When using -time, the countdown will start when the first player joins. With  -timemanual,
                      the  countdown has to be started manually using the /countdown command. This is useful for
                      matches.

       -tk            Changes the default behavior where a player dies when he kills  a  teammate.   When  using
                      this option, he will just get a -1 score penalty for the kill but not be killed in game.

       -tkannounce    Announce teamkills to the admin channel.

       -tkkr percent  Kicks  players  whose team killing to normal kill ratio is greater than percent [1-100]. A
                      start up grace period is given to players.

       -ts [micros]   Include timestamp information in  DEBUG  output  —  useful  for  logging.   If  micros  is
                      specified, microseconds will be added to the timestamp.

       -UPnP          If  enabled  during build, bzfs try to communicate with the Gateway to set Port Forwarding
                      and to supply information not specified with -i (local interface) and -publicaddr

       -userdb file   Load group associations from file

       -vars file     Loads values for game configurable variables from file. Entries are one per  line  in  the
                      form:  set  variable  value.  For a list of variables that are configurable, in the BZFlag
                      client, send a message with /set as the text.

       -version       Prints the version number of the executable.

       -world world-file
                      Reads a specific BZFlag .bzw world layout file for the game map.

       -worldsize world-size
                      Changes the size for random maps

   Notes
       The server uses nearly zero CPU time when nobody is playing, and even during a game the server uses  very
       little  CPU, so it's not a burden on the system to leave one running and it won't interfere with a player
       using the same system (except on Windows 95, which  really  sucks  at  multitasking).   The  server  will
       continue  to  run until terminated.  If a game is in progress when the server goes down, all players will
       be kicked off and the game will be aborted without warning.  The server resets itself  when  all  players
       have  quit.   All  players  must quit to reset the server when a game is over (because of a score or time
       limit).

       The following game styles are recommended starting points.

              -c [-b]        Basic capture-the-flag game.  It teaches teamwork and dogfighting skills.

              -s -t          Free-for-all  with  superflags  and  teleporters.   Teaches  players  how  to   use
                             superflags  and  teleporters  for maximum effect.  You may want to allow players to
                             drop bad flags with any of -sa, -st, and -sw.

       Notice that the maximum number of shots for these styles is one.  Having  low  shot  counts  can  greatly
       increase general playability and learning speed.  However, this is not always true of every game style or
       game world, and a skilled player will learn to deal with a variety of shot  counts.   Single  shot  games
       have additional disadvantage in WAN games where lag/jitter can cause unfair advantage.  Single shot, non-
       Jump games will teach valuable lessons in dodging, however, and are excellent  starting  points  for  the
       beginner.

   Networking
       Communication  between the server and clients (i.e. between bzfs and bzflag) during a game is via TCP and
       UDP.  Use the -help option to get the server's default port.  If there's a firewall  between  the  server
       and  client,  the  firewall  must accept connections from the client to this port and forward them to the
       server.

       Clients can search for servers by sending broadcast UDP packets.  But they must be on the same local area
       network  for  this to work.  Clients can also find servers advertised using -publictitle by querying list
       servers.

       Game information is relayed through the server. Some communication between clients, such as position  and
       orientation information, is normally sent via UDP packets.  Other data, like flag grab and kill messages,
       are sent to the server via TCP. The server then  turns  around  and  broadcasts  these  packets   to  all
       players.  Since  being  in a game implies connection to the server, all players are guaranteed to get all
       messages sent via TCP.  But the UDP packets may be discarded.  If other players can see your tank in  the
       game  but  it never appears to move and shots go through it, chances are high that your UDP connection is
       not working.

   Worlds
       BZFlag worlds come in two varieties, randomly generated ones, and human designed ones. By  default,  bzfs
       uses  randomly  generated  world unless you specify the -world command line or configuration file option.
       The world file specified by the -world option is a text based file that contains a list of world objects.
       This  file  can  be created using programs found on github, or can be hand edited.  See the bzw(5) manual
       page for more details.

GENERAL SERVER COMMANDS

       /clientquery [callsign]
              Retrieve client version info from all users, or just CALLSIGN if given. Example:
              /clientquery MrApathyCream
              MrApathyCream: Version: BZFlag 1.11.6-20040729-gnu-linux-SDL

       /date, /time
              Responds with the current server local time. /date and /time are exactly the same. Example:
              Tuesday September 08 06:45:54 2004

       /flaghistory
              Lists what flags players have grabbed in the past. Example:
              MrApathyCream: (<-) (->) (O) (CB) (M) (B) (JM) (WA)
              Gerbol: (L) (GM) (L) (GM) (CL) (ST) (GM) (L)
              captain_macgyver: (SB) (SW)

       /idlestats
              Displays the idle time in seconds for each player. A player is idle when
              he is dead and has not respawned yet. Example:
              MrApathyCream: 0s
              Gerbol: 80s
              captain_macgyver: 13s

       /lagstats
              Lists network delays, jitter and number of lost resp. out of order packets by player. Example:
              MrApathyCream 335 +- 10ms
              Gerbol 210 +- 3ms
              captain_macgyver 155 +- 0ms  12% lost/ooo

       /me action

              This command displays an "action" that is conveyed to another player.  It allows
              for a little more expressivity in the game.  For example: "/me is hunting wabbits"
              turns into a message like "TimRiker is hunting wabbits" that gets displayed
              differently to other players.

       /msg "callsign" message

              This command allows a player to send a message to another player.  Similar to using
              the "," and "." message keys in the game and then selecting your recipient, this
              will send some message to particular player.  The quotes are optional.

       /part [message]
              Leave the server with a goodbye message (similar to IRC's /part)
              /part Gotta go! bye everyone!

       /password password
              Attempt to gain administrator status Example:
              /password supersecretpassword
              You are now an administrator!

       /poll {{ban | kick} callsign | vote {yes | no} | veto}
              Interact and make requests of the bzflag voting system via the /poll command.
              The ban and kick subcommands request a vote to respectively ban or kick some
              player.  The playername is expected as the next argument.  The vote and veto
              commands behave identical to the /vote and /veto command counterparts,
              expecting the same arguments in following.  By default, you must be registered
              to request or vote on a poll, and an admin to veto.

       /quit [message]
              Quit the game with a goodbye message (similar to IRC's /quit)
              /quit Gotta go! bye everyone!

       /report message
              Write a message to the server administrator. Example:
              /report I like this map!

       /uptime
              Prints server's current running time in days, hours, mins and secs.

       /vote {yes | no}
              If there is a poll active, this command will place a vote in favor or in
              opposition to the poll.  Multiple languages are supported as a vote argument
              in addition to "yes" and "no".  By default, you must be registered to vote on
              a poll.

SERVER ADMINISTRATIVE COMMANDS


       /ban {ip | ipList | #slot | "Player Name" | playerName} duration reason

              Ban players using the specified IPs for certain length of time from using this server.  <duration>
              can be:
                  'short' or 'default' for the default ban time
                  'forever' or 'max' for infinite bans
                  a time in the format <weeks>W<days>D<hours>H<minutes>M
                  just a number of minutes

              Examples:
              /ban 35.23.43.66 2 cheating
              bans player with specific ip for 2 minutes
              /ban 35.23.*.*,47.23.17.* 0 Cheaters
              bans all ips in this range forever
              /ban 36.37.2.8 2h30m "ShootMe" was abusing players
              bans specific ip for 2.5 hours with given reason
              /ban #5 60m Rejoining
              bans player using slot 5 for 60 minutes with given reason
              /ban "Tanker" max cheating
              bans the player Tanker forever because cheating

              Note: Slots numbers are only displayed in admins clients.
              Duration and reason are required.

       /banlist
              List all of the IPs currently banned from this server. Example:
              /banlist
              IP Ban List
              ------------
              35.23.43.66 (2 minutes) banned by Tankmaster
                  reason: Cheaters
              47.23.17.* banned by Tankslave

       /checkip ip
              Check whether the IP is banned and print the corresponding rule. This does not
              cover hostbans. Example:
              /checkip 35.23.43.66
              35.23.43.66 is banned:
              35.23.43.66 banned by Tankmaster
                  reason: Cheaters

       /countdown [seconds]
              Starts the countdown sequence for a timed game.  The countdown
              sequence length can optionally be specified in seconds.  Examples:
              /countdown
              /countdown 3

       /flag reset {all|unused|team|FlagId}
              Repositions flags. If unused is specified, flags carried
              by tanks are not affected. Using the team option only
              resets team flags, whereas specifying a flag id (such as GM) only
              repositions flags of this type. If noteam is specified,
              team flags will not be reset. Examples:
              /flag reset unused noteam
              /flag reset G

       /flag show
              Shows all flags with information. Example:
              0: p:-1 r:1 g:1 1:V s:1 p:159.1x43.2x0.0
              1: p:2 r:1 g:1 1:SW s:1 p:209.1x143.2x10.0
              2: p:-1 r:1 g:3 1:L s:1 p:-29.1x301.2x0.0

       /flag up
              Removes all flags from the game

       /gameover
              Ends the current game

       /handicap
              Shows the handicap boost percentage for every player

       /hostban hostpattern duration reason
              Ban players using the specified hostnames for a certain length of time from using this server.
              Example:
              /hostban *.foo.com 2 cheating
              bans all players from foo.com for 2 minutes

       /hostbanlist
              List all of the host patterns currently banned from this server.

       /jitterwarn [time]
              Change the maximum allowed jitter time. Example:
              /jitterwarn 50

       /jitterdrop [count]
              Change the number of jitter warnings given before a player is kicked. Example:
              /jitterdrop 3

       /kick {"Player Name" | playerName | #slot} reason
              Kick a player off the server. Example:
              /kick Gerbol
              You were kicked off the server by MrApathyCream

              /kick #1 Team killing
              Kick the player using slot 1 because Team Killing

              Note: Slots numbers are only displayed in admins clients.
              A reason is required

       /kill {"Player Name" | playerName | #slot} [reason]
              Kill a player just like when shooting. Example:
              /kill Gerbol
              kill the player named Gerbol

              /kill #4 teamkilling
              Kill the player using slot 4 because teamkilling

       /lagwarn [time]
              Change the maximum allowed lag time. Example:
              /lagwarn 300

       /lagdrop [count]
              Change the number of lag warnings given before a player is kicked. Example:
              /lagdrop 3

       /modcount [seconds]
              Change the time on the clock by the specified number of seconds. Example:
              /modcount +320

       /mute {#slot | callsign}
              Allows a server admin to remove the ability for a player to communicate with
              other players. Once muted the player may only talk to admins on the server.
              This command removes the TALK permission that is enabled by default for all
              players. (disabling TALK by default would let you run a "silent" server)

       /packetlosswarn [time]
              Change the maximum allowed packetloss. Example:
              /packetloss 1

       /packetlossdrop [count]
              Change the number of packetloss warnings given before a player is kicked. Example:
              /packetloss 3

       /playerlist
              List player names and IP addresses. Example:
              /playerlist
              [0]MrApathyCream: 35.23.65.44:4808 udp id
              [1]Gerbol: 130.123.1.55:4909 udp id
              [2]captain_macgyver: 15.32.122.51:3201 udp id

       /record file filename
              Start recording directly to a file

       /record list
              List all files in the recordings directory

       /record rate seconds
              Set the time between game state updates stored in the recording. This will affect
              the granularity of the 'skips' you can do while replaying a file. It will also
              make the recording files bigger if it is set to a faster update rate.

       /record save filename [seconds]
              Save the recording buffer into a file. If seconds is specified, then only save
              that many previous seconds into the file.

       /record size megabytes
              Set the size of the recording memory buffer

       /record start
              Start recording into the memory buffer

       /record stats
              Display the statistics for the current recording (file or buffered)

       /record stop
              Stop recording into the memory buffer

       /replay list
              List all files in the recordings directory

       /replay load {filename | #index}
              Load the specified recording file by name, or by index
              (same indices as produced by the 'replay list' command)

       /replay loop
              Start looping the recording. This will oftentimes require that all players connected
              to the server rejoin  (to reload the map, etc...)

       /replay play
              Start playing the recording. This will oftentimes require that all players connected
              to the server rejoin  (to reload the map, etc...)

       /replay skip [{+ | -} seconds]
              If seconds is specified, then skip that amount of time in the recording.
              Otherwise, skip forwards until there is activity.

       /replay stats
              Show the current replay status (filename, position, etc...)

       /say message
              Generate a public message sent by the server. Example:
              /say This is a servermessage

       /sendhelp {"Player name" | playerName | #slot} help page
              Send the specified help page to a user
              /sendhelp register "Foo"
              Send the the help page 'register' to the player Foo

       /shutdownserver
              Stop serving BZFlag on this server

       /superkill
              Kick all players off the server

       /unmute {#slot | callsign}
              Allows a server admin to restore the TALK permission to a previously muted
              player.

       /veto  If there is a poll active, this will cancel the poll.  By default, you must be
              an admin to veto a poll.

       /viewreports
              View the server's report file.

USER MANAGEMENT

       Generally,  you  start with empty files for the user and password databases.  These are maintained by the
       server, and modifiable through server commands.  Users in turn belong to groups.   Groups  are  generally
       customized to perhaps allow administrative control to trusted users.

       There  are both local and global groups, i.e. groups that are available across the entire BZFlag network.
       In setting up a server, you may want to specify global groups that will  allow  already  well  known  and
       trusted users to police your server and help maintain control against cheaters and abuse.

       The  server  will  automatically create three groups: EVERYONE, VERIFIED, and LOCAL.ADMIN.  EVERYONE  has
       ACTIONMESSAGE, ADMINMESSAGESEND, CLIENTQUERY, DATE,  FLAGHISTORY,  IDLESTATS,  LAGSTATS,  PRIVATEMESSAGE,
       SHOWMOTTO,  SPAWN  and  TALK  by  default.  VERIFIED  has LISTPLUGINS, POLL, POLLKICK, POLLBAN, POLLKICK,
       POLLSET, POLLFLAGRESET, REPORT and VOTE.  The LOCAL.ADMIN group  has  almost  every  permission  possible
       (similar to granting admin powers via /password).

       Once  the  server  is  running,  users  can  register  their  callsigns  and  admins  can set their group
       memberships. Users can use any command that their permissions allow. Every user, registered  or  not,  is
       part of the EVERYONE group. When a user identifies, they become part of the VERIFIED group.

       In  addition,  there  are  global  groups available that persist network-wide.  Users that register their
       callsigns on the BZFlag website at https://forums.bzflag.org/ have the ability to  globally  authenticate
       by providing a password from within the client.  When they authenticate, bzfs will ask the list server if
       they belong to any of the groups listed in your group database file that are not prefixed with  "LOCAL.".
       If  they  are a member of a group in question, then they are granted the permissions you specify for that
       group.

       A group database file is set up to contain the specific local and global groups you care to have on  your
       server  in addition to default groups and exactly which permissions are granted by each.  These files are
       laid out with one line per group, using the following format:

       GROUP_NAME: [*Group] [ +| -| !]perm1 [ +| -| !]perm2 ... permN

       *Group: inherit permissions from existing group "Group"

       +perm: add perm to this group

       -perm: remove perm from this group

       !perm: forbid perm for this group. makes perm inaccessible whether it's granted from another group or not

       If no operator is given with a permission it is handled  like  +perm.  A  group  line  for  a  previously
       existing  group  adds  to  already granted permissions. That way you can spread a group's definition over
       several lines:

       GROUP_NAME: +perm1 +perm2
       GROUP_NAME: +perm3 +perm4 -perm5

       Group names cannot have spaces, quotes, or other special characters in them.  This would be a sample line
       defining a "cop" group:

       COPS: +KICK +SHORTBAN +BANLIST

       Now a group USERADMIN with all permissions granted to COPS plus some additional could look like this:

       USERADMIN: *COPS +BAN +UNBAN

       Probably  you  want  to  define  customized permissions for the default group "VERIFIED" instead of those
       automatically assigned by the server:

       VERIFIED: -ALL +perm1 +perm2 ...

       Or you want to disable the /poll command entirely?

       EVERYONE: !POLL

       To distinguish between a group that is local and one that is global, use the "LOCAL." prefix as  part  of
       the group name, e.g.:

       LOCAL.OPERATOR: BANLIST

       The available permissions are as follows:

       ACTIONMESSAGE       /me
       ADMINMESSAGERECEIVE player receives messages sent to admin channel
       ADMINMESSAGESEND    player may send messages on the admin channel
       ALL                 all permissions available
       ANTIBAN             player is immune to /ban
       ANTIKICK            player is immune to /kick
       ANTIKILL            player is immune to /kill
       ANTIPOLL            player is immune to /poll
       ANTIPOLLBAN         player is immune to /poll ban
       ANTIPOLLKICK        player is immune to /poll kick
       ANTIPOLLKILL        player is immune to /poll kill
       BAN                 /ban /hostban
       BANLIST             /banlist /hostbanlist
       CLIENTQUERY         /clientquery
       COUNTDOWN           /countdown
       ENDGAME             /gameover
       FLAGHISTORY         /flaghistory
       FLAGMASTER          /flag
       FLAGMOD             /flag reset /flag show /flag history
       HIDEADMIN           player doesn't show the @ sign
       IDLESTATS           /idlestats
       INFO                not implemented
       JITTERWARN          /jitterwarn /jitterdrop
       KICK                /kick
       LAGSTATS            /lagstats
       LAGWARN             /lagwarn /lagdrop
       LISTPERMS           not implemented
       LISTPLUGINS         /listplugins
       MASTERBAN           /masterban
       MODCOUNT            /modcount
       MUTE                /mute
       PACKETLOSSWARN      /packetlosswarn /packetlossdrop
       PLAYERLIST          /playerlist
       PLUGINS             /listplugins /loadplugin /unloadplugin
       POLL                /poll
       POLLBAN             /poll ban
       POLLFLAGRESET       /poll flagreset
       POLLKICK            /poll kick
       POLLSET             /poll set
       PRIVATEMESSAGE      /msg
       RECORD              /record
       REJOIN              allows instant rejoin, regardless of _rejoinTime
       REMOVEPERMS         /removegroup
       REPLAY              /replay
       REPORT              /report
       REQUIREIDENTIFY     user must use global registration
       SAY                 /say
       SENDHELP            /sendhelp
       SETALL              use of all set/remove commands
       SETPERMS            /setgroup
       SETPASSWORD         not implemented
       SETVAR              /set /reset
       SHORTBAN            /ban (with a limited duration)
       SHOWADMIN           player shows an @ regardless of having 'shortban' perm
       SHOWMOTTO           player is allowed to display their motto on the scoreboard
       SHOWOTHERS          /showgroup /showperms (on others)
       SHUTDOWNSERVER      /shutdownserver
       SPAWN               join game as a player. observers don't need this flag.
       SUPERKILL           /superkill
       TALK                allows all players to send messages
       UNBAN               /unban /hostunban
       UNMUTE              /unmute
       VETO                /veto
       VOTE                /vote

       /grouplist
              Lists the available user groups

       /groupperms
              Lists the permissions for each group

       /masterban {flush | reload}
              Forces  the  server  to  flush  any bans from the master server. If reload is specified instead of
              flush, also reloads bans from the the internet. Local bans are unaffected.  This command  requires
              the UNBAN permission.

       /reload
              Reloads  the  user, group, and password files (for synchronization between multiple servers on the
              same machine)

       /removegroup callsign group
              Remove a user from a group

       /setgroup callsign group
              Add a user to a group

       /showgroup callsign
              Lists the groups that a registered user is a member of

SEE ALSO

       bzflag(6), bzadmin(6), bzw(5)