Provided by: gkrellmd_2.3.10-2build1_amd64 bug


       gkrellmd - The GNU Krell Monitors Server


       gkrellmd  [  --help ] [ --verbose ] [ -u | --update-hz f ] [ -m | --max-clients N ] [ -A |
       --address server_address ] [ -P | --port server_port ] [ -a | --allow-host hostname ] [ -d
       |  --detach ] [ -p | --plugin name ] [ -pe | --plugin-enable name ] [ --plist ] [ --plog ]
       | --logfile path ] | --syslog ] [ -U | --user username ] [ -G  |  --group  groupname  ]  [
       --pidfile  path  ]  [  --inet-interval  seconds  ] [ --io-timeout seconds ] [ --reconnect-
       timeout seconds ] [ --mailbox mbox_path ] [ --net-timer  net_interface  ]  [  --mbmon-port
       number ]


       gkrellmd  Listens for connections from gkrellm clients.  When a gkrellm client connects to
       a gkrellmd server all builtin monitors collect their data from the server.   However,  the
       gkrellm  process  is  running  on  the  local  machine, so plugins enabled in gkrellm will
       collect data from the local context unless the plugin is client/server capable and  has  a
       gkrellmd  plugin  counterpart  which  is  installed and enabled on the server.  Enabling a
       gkrellmd plugin  installed  on  a  server  requires  adding  a  plugin-enable  line  to  a
       gkrellmd.conf file.

       Any  command  launching  from a gkrellm client will run commands on the local machine.  If
       you want to execute commands on the server, the client side commands can use ssh.

       There is no support for file system mounting on the machine where the gkrellmd  server  is


       -h --help
              Displays usage information and exits.

       -v --version
              Prints gkrellmd version and exits.

       -V --verbose
              Prints connection progress.

       -u, --update-hz f
              Sets  the  data  update  frequency  in  samples per second for the server.  This is
              independent of and should be less than the gkrellm client update  rate.   The  rate
              can  be  from  1 to 10 and should be lower to minimize network traffic.  A value of
              not much more than 1/2 the client update rate is best where it is not important  to
              minimize network traffic.

       -m, --max-clients N
              Sets the maximum number of simultaneous clients allowed to connect to the server.

       -A, --address server_address
              Use server_address for the network connection.

       -P, --port server_port
              Use server_port for the network connection.

       -a, --allow-host hostname
              Specify  hosts  which are allowed to connect.  Multiple allow-host arguments may be
              given.  If no hosts are specified on the command line or in a  gkrellmd.conf  file,
              then all hosts are allowed to connect.  The hostname argument may be a text name or
              a IPv4 or IPv6 dotted notation.  For IPv4, the simple subnet pattern x.y.z.* may be
              used.   Also,  if  hostname  is  the  keyword ALL then all hosts are allowed.  This
              option is additive and specified hosts will be added to  the  hostnames  listed  in
              gkrellmd.conf files unless the --clear-hosts option is given first.

       -p, --plugin name
              For  plugin  development  convenience,  load  and enable the command line specified
              plugin to avoid repeated install steps in the development cycle.   See  the  README
              from  the  gkrellm  demo5  for  more  information  on  gkrellmd plugin development.
              Requires at least gkrellmd version 2.2.0.

       -pe, --plugin-enable name
              Specify an installed plugin to enable (this is probably more convenient to  specify
              in a gkrellmd.conf file).  Requires at least gkrellmd version 2.2.0.

       -plist Output  a  list  of  plugins  which are installed and available to enable and exit.
              Requires at least gkrellmd version 2.2.0.

       -plog  Output a log of the plugin install process.  When requesting a  log,  the  --detach
              option will have no effect.  Requires at least gkrellmd version 2.2.0.

       -l, --logfile path
              Enable sending error and debugging messages to a log file.

              Enable sending logging messages to the syslog file.

       -c, --clear-hosts
              Clears  the  current  list  of  allowed  hosts.   Use  this before any --allow-host
              arguments if you want command line allowed hosts to override and not be additive to
              those specified in gkrellmd.conf files.

       -d, --detach
              Runs gkrellmd in the background and detaches from the terminal.

       -U, --user username
              Changes  user  to  username  after  startup.  Useful if you want to run gkrellmd as
              root, but set it to run with another privileges; typically as the nobody user.

       -G, --group groupname
              Changes group to groupname after startup.

       --pidfile path
              Create  a  PID  file  for  the  running  gkrellmd.   Typically,   path   would   be
              /var/run/  Default is no PID file.

       --inet-interval seconds
              The Internet monitor defaults to reading TCP connections once per second.  However,
              for Linux SMP kernels where reading /proc/net/tcp causes high cpu usage, the  inet-
              interval may be set to 1-20 seconds to slow down /proc/net/tcp reads.  Or set it to
              0 to totally disable the Internet monitor.   Requires  at  least  gkrellmd  version

       --io-timeout seconds
              Configure  gkrellm  clients to disconnect from a gkrellmd server if there is an io-
              timeout interval where the client receives no input from the server.  Use this  for
              conditions   where  gkrellmd  may  be  ungracefully  terminated  such  that  socket
              connections are not closed.  Minimum is 2 (less than 2 for no I/O disconnecting and
              is the default).  Requires at least 2.1.8 versions of both gkrellmd and gkrellm.

       --reconnect-timeout seconds
              Configure  gkrellm  clients  to  attempt  automatic reconnects to a gkrellmd server
              every  reconnect-timeout  seconds  after  a   disconnected   state   is   detected.
              Disconnected  states are created by normal gkrellmd shutdowns or by an expiring io-
              timeout.  Minimum is 2 (less than 2  for  no  automatic  reconnecting  and  is  the
              default).  Requires at least 2.1.8 versions of both gkrellmd and gkrellm.

       --mailbox mbox_path
              Check  the  server side mailbox mbox_path and send mail counts to connected gkrellm
              clients.  Mailbox types may be mbox, Maildir,  and  MH  mail.   Requires  at  least
              2.1.11 versions of both gkrellmd and gkrellm.

       --net-timer net_interface
              Configure  gkrellmd to send the connect time for a network interface to all clients
              to be displayed in the client gkrellm timer button monitor  display.   If  this  is
              done, the client gkrellm timer button can still execute commands on the client, but
              the button will not affect the timer display.  If you want the client timer  button
              to  execute commands on the server, your timer button commands can use ssh.  So set
              this if your server box has say a ppp0 or ippp0 connection and you want to  monitor
              its connect time.  Requires at least 2.2.7 versions of both gkrellmd and gkrellm.

       --mbmon-port port_number
              If  the  mbmon daemon is running when gkrellmd is started, gkrellmd will connect to
              mbmon using the given port_number and send mbmon sensor data to  connected  gkrellm
              clients.  The mbmon daemon should have been started using the same port number like
              so: mbmon -r -P port_number


       On the server machine where gkrellmd is installed, copy the sample gkrellmd.conf file from
       the  server  subdirectory  of  the  gkrellm  source  tarball  to  one of the gkrellmd.conf
       locations listed in the FILES section and edit it to set your  preferences  or  to  enable
       plugins.    Probably  don't  set  the  detached  option  until  you  are  happy  with  the
       configuration.  Run: gkrellmd

       On a client machine, run: gkrellm -s server-machine-name

       Configure the client gkrellm in its graphical configuration window as you wish, and that's
       all there is to it.  Of course, if you don't use the default gkrellmd port number you will
       have to supply an appropriate port argument to the client gkrellm.

       Available plugins will be installed in the plugins-gkrellmd directory locations listed  in
       the  FILES section.  You may test enable any of these plugins with the -pe option, but for
       permanent enabling you should add a plugin-enable line to any gkrellmd.conf file listed in
       the  FILES  section.   Run  gkrellmd -plist to see a list of all installed plugins and run
       gkrellmd -plog to see a log of the plugin install process.


              System server config which is read  first.   The  config  file  may  contain  lines
              similar to the command line args.  For example:

              allow-host localhost


              allow-host 192.168.0.*

              port 19150

              max-clients 2

              update-hz 2


              io-timeout 5

              reconnect-timeout 5

              plugin-enable gkrelltopd

              With  the  exception  of  --allow-host,  command line args will override options in
              gkrellmd.conf files.

              Local server config file which is read second.

              User server config file which is read last.

              User server plugin directory.

              System wide server plugin directory.

              Local server plugin directory.


       This manual page was written by Bill Wilson <>.