slpd(1M)                                                           slpd(1M)




 NAME    [Toc]    [Back]
      slpd - Service Location Protocol Daemon

 SYNOPSIS    [Toc]    [Back]
      slpd [-c configuration_file] [-r registration_file] [-l log_file]
           [-p pid_file] [-d]

 DESCRIPTION    [Toc]    [Back]
      The slpd daemon provides the functionality of the Directory Agent and
      Service Agent for the Service Location Protocol ("SLP") version 2.
      SLP provides a scalable framework that allows the networking
      applications to discover the existence, location and configuration of
      networked services in the enterprise networks.

      slpd provides the functionality of the following services:

      Directory Agent (DA)    [Toc]    [Back]

      This agent collects service advertisements from the service agents or
      applications providing the services and caches them in its memory.
      The DA then provides this services information to the clients (user
      agents) trying to discover the service information.  Directory agents
      advertise their presence through directory agent advertisements.

      Service Agent Server (SA)    [Toc]    [Back]

      This server registers the service information of all the services that
      are advertised by the corresponding service agents to this server.  It
      then answers the queries from the user agents about the information on
      the services that were registered  with this server by the services
      agents.  It also forwards the registrations to any Directory Agents
      that may be present in its scope.

      slpd also provides a "-r" option whereby the existing services which
      are not slp enabled can advertise information by storing this
      information in a static registration file.  See below for the options.
      slpd reads this file and provides the information to the user agents.

      slpd can be either started as an SA server or DA by setting
      net.slp.isDA to either false or true in the configuration file.  In
      both the cases, slpd runs as a daemon listening for SLP requests.
      When slpd is acting as a DA, it registers the services coming from
      within the host acting as a SA server and acts as DA for the User
      Agents (UAs) running on the remote machines.

      slpd can be configured to provision services within a scope that is
      configured by the administrator by setting net.slp.useScopes in the
      configuration file. SLP daemon will answer to requests only if it
      falls within this scope. This feature of scoping of SLP daemon
      provides provisioning of services in an Enterprise network based on
      administration needs, geographical needs or department needs and also



 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003






 slpd(1M)                                                           slpd(1M)




      provides scalability.

      See RFC2608 for more information on the Service Location Protocol.
      Without any arguments, slpd reads the default configuration file,
      /etc/slp.conf.

    Options    [Toc]    [Back]
      The options are:

           -c configuration_file  Specifies the configuration file to slpd.
                                  The default configuration file is
                                  /etc/slp.conf.

           -d                     Do not detach from the terminal.

           -l log_file            Specifies the log file that receives slpd
                                  log messages.  The default log file is
                                  /var/adm/syslog/slpd.log.

           -p pid_file            Specifies the file that holds the slpd
                                  process id.  The default slpd process id
                                  file is /var/run/slpd.pid.

           -r registration_file   Specifies the registration file to slpd
                                  for reading service information.  The
                                  default registration file is /etc/slp.reg.

      To restart the slpd daemon, send it a SIGHUP signal.

      To kill the slpd daemon, send it a SIGTERM signal.

      The slpdc command can also be used for sending signals to the server
      process (see slpdc(1M)).

 DIAGNOSTICS    [Toc]    [Back]
      Any errors encountered by slpd in the registration or configuration
      file or in normal operation are logged in the log file,
      /var/adm/syslog/slpd.log, which is the default file.  To change this
      log file, use the slpd -l log_file command.

 AUTHOR    [Toc]    [Back]
      slpd was developed by the Caldera Systems, Inc.

 FILES    [Toc]    [Back]
      /etc/slp.conf                 SLP configuration file
      /etc/slp.reg                  SLP registration file
      /var/run/slpd.pid             File storing slpd process ID
      /var/log/slp.log              Default SLP log file

 SEE ALSO    [Toc]    [Back]
      kill(1), slpdc(1M), signal(2), libslp(3N), slp.conf(4), slp.reg(4).



 Hewlett-Packard Company            - 2 -   HP-UX 11i Version 2: August 2003






 slpd(1M)                                                           slpd(1M)




      RFC 2165, RFC 2608, RFC 2609, RFC 2614.


 Hewlett-Packard Company            - 3 -   HP-UX 11i Version 2: August 2003