Материал из

Перейти к: навигация, поиск

Не указан параметр (1)

NGCTL(8) FreeBSD System Manager's Manual NGCTL(8)


    ngctl -- netgraph control utility


    ngctl [-d] [-f filename] [-n nodename] [command ...]


    The ngctl utility creates a new netgraph node of type socket which can be
    used to issue netgraph commands.  If no -f flag is given, no command is
    supplied on the command line, and standard input is a tty, ngctl will
    enter interactive mode.  Otherwise ngctl will execute the supplied com-
    mand(s) and exit immediately.
    Nodes can be created, removed, joined together, etc.  ASCII formatted
    control messages can be sent to any node if that node supports
    binary/ASCII control message conversion.
    In interactive mode, ngctl will display any control messages and data
    packets received by the socket node.  In the case of control messages,
    the message arguments are displayed in ASCII form if the originating node
    supports conversion.
    The options are as follows:
    -f nodeinfo
            Read commands from the named file.  A single dash represents the
            standard input.  Blank lines and lines starting with a ``# are
    -n nodename
            Assign nodename to the newly created netgraph node.  The default
            name is ngctlXXX where XXX is the process ID number.
    -d      Increase the debugging verbosity level.


    The currently supported commands in ngctl are:
          config     get or set configuration of node at <path>
          connect    Connects hook <peerhook> of the node at <relpath> to <hook>
          debug      Get/set debugging verbosity level
          dot        Produce a GraphViz (.dot) of the entire netgraph.
          help       Show command summary or get more help on a specific command
          list       Show information about all nodes
          mkpeer     Create and connect a new node to the node at "path"
          msg        Send a netgraph control message to the node at "path"
          name       Assign name <name> to the node at <path>
          read       Read and execute commands from a file
          rmhook     Disconnect hook "hook" of the node at "path"
          show       Show information about the node at <path>
          shutdown   Shutdown the node at <path>
          status     Get human readable status information from the node at <path>
          types      Show information about all installed node types
          write      Send a data packet down the hook named by "hook".
          quit       Exit program
    Some commands have aliases, e.g., ``ls is the same as ``list.  The
    ``help command displays the available commands, their usage and
    aliases, and a brief description.


    The ngctl utility exits 0 on success, and >0 if an error occurs.


    netgraph(3), netgraph(4), nghook(8)


    The netgraph system was designed and first implemented at Whistle Commu-
    nications, Inc. in a version of FreeBSD 2.2 customized for the Whistle


    Archie Cobbs <>

FreeBSD 9.0 January 19, 1999 FreeBSD 9.0


Источник — «»