xref: /freebsd/libexec/rbootd/rbootd.8 (revision 8d20be1e22095c27faf8fe8b2f0d089739cc742e)
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40.\"	from: @(#)rbootd.8	8.2 (Berkeley) 12/11/93
41.\" $FreeBSD$
42.\"
43.\" Utah Hdr: rbootd.man 3.1 92/07/06
44.\" Author: Jeff Forys, University of Utah CSS
45.\"
46.Dd December 11, 1993
47.Dt RBOOTD 8
48.Os
49.Sh NAME
50.Nm rbootd
51.Nd HP remote boot server
52.Sh SYNOPSIS
53.Nm
54.Op Fl ad
55.Op Fl i Ar interface
56.Op config_file
57.Sh DESCRIPTION
58The
59.Nm
60utility services boot requests from Hewlett-Packard workstations over a
61local area network.
62All boot files must reside in the boot file directory; further, if a
63client supplies path information in its boot request, it will be silently
64stripped away before processing.
65By default,
66.Nm
67only responds to requests from machines listed in its configuration file.
68.Pp
69The options are as follows:
70.Bl -tag -width indent
71.It Fl a
72Respond to boot requests from any machine.
73The configuration file is ignored if this option is specified.
74.It Fl d
75Run
76.Nm
77in debug mode.
78Packets sent and received are displayed to the terminal.
79.It Fl i Ar interface
80Service boot requests on specified interface.
81If unspecified,
82.Nm
83searches the system interface list for the lowest numbered, configured
84``up'' interface (excluding loopback).
85Ties are broken by choosing the earliest match.
86.El
87.Pp
88Specifying
89.Ar config_file
90on the command line causes
91.Nm
92to use a different configuration file from the default.
93.Pp
94The configuration file is a text file where each line describes a particular
95machine.
96A line must start with a machine's Ethernet address followed by an optional
97list of boot file names.
98An Ethernet address is specified in hexadecimal with each of its six octets
99separated by a colon.
100The boot file names come from the boot file directory.
101The ethernet address and boot file(s) must be separated by white-space
102and/or comma characters.
103A pound sign causes the remainder of a line to be ignored.
104.Pp
105Here is a sample configuration file:
106.Bd -literal
107#
108# ethernet addr     boot file(s)        comments
109#
11008:00:09:0:66:ad    SYSHPBSD            # snake (4.3BSD)
11108:00:09:0:59:5b                        # vandy (anything)
1128::9:1:C6:75        SYSHPBSD,SYSHPUX    # jaguar (either)
113.Ed
114.Pp
115The
116.Nm
117utility logs status and error messages via
118.Xr syslog 3 .
119A startup message is always logged, and in the case of fatal errors (or
120deadly signals) a message is logged announcing the server's termination.
121In general, a non-fatal error is handled by ignoring the event that caused
122it (e.g.\& an invalid Ethernet address in the config file causes that line
123to be invalidated).
124.Pp
125The following signals have the specified effect when sent to the server
126process using the
127.Xr kill 1
128command:
129.Bl -tag -width SIGUSR1 -offset xxxxxxxx
130.It SIGHUP
131Drop all active connections and reconfigure.
132.It SIGUSR1
133Turn on debugging, do nothing if already on.
134.It SIGUSR2
135Turn off debugging, do nothing if already off.
136.El
137.Sh "FILES"
138.Bl -tag -width /usr/libexec/rbootd -compact
139.It Pa /dev/bpf#
140packet-filter device
141.It Pa /etc/rbootd.conf
142configuration file
143.It Pa /tmp/rbootd.dbg
144debug output
145.It Pa /usr/mdec/rbootd
146directory containing boot files
147.It Pa /var/run/rbootd.pid
148process id
149.El
150.Sh SEE ALSO
151.Xr kill 1 ,
152.Xr socket 2 ,
153.Xr signal 3 ,
154.Xr syslog 3
155.Sh BUGS
156If multiple servers are started on the same interface, each will receive
157and respond to the same boot packets.
158