projects / apple / network_cmds.git / blame
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1 | .\" $OpenBSD: ypserv.8,v 1.9 1997/09/04 00:43:19 deraadt Exp $ |
| 2 | .\" Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se> | |
| 3 | .\" All rights reserved. | |
| 4 | .\" | |
| 5 | .\" Redistribution and use in source and binary forms, with or without | |
| 6 | .\" modification, are permitted provided that the following conditions | |
| 7 | .\" are met: | |
| 8 | .\" 1. Redistributions of source code must retain the above copyright | |
| 9 | .\" notice, this list of conditions and the following disclaimer. | |
| 10 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | .\" notice, this list of conditions and the following disclaimer in the | |
| 12 | .\" documentation and/or other materials provided with the distribution. | |
| 13 | .\" 3. All advertising materials mentioning features or use of this software | |
| 14 | .\" must display the following acknowledgement: | |
| 15 | .\" This product includes software developed by Mats O Jansson | |
| 16 | .\" 4. The name of the author may not be used to endorse or promote products | |
| 17 | .\" derived from this software without specific prior written permission. | |
| 18 | .\" | |
| 19 | .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS | |
| 20 | .\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 21 | .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 22 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
| 23 | .\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 24 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 25 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 26 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 27 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 28 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 29 | .\" SUCH DAMAGE. | |
| 30 | .\" | |
| 31 | .Dd June 27, 1994 | |
| 32 | .Dt YPSERV 8 | |
| 33 | .Os | |
| 34 | .Sh NAME | |
| 35 | .Nm ypserv | |
| 36 | .Nd YP server daemon | |
| 37 | .Sh SYNOPSIS | |
| 38 | .Nm ypserv | |
| 39 | .Op Fl 1 | |
| 40 | .Op Fl a Ar aclfile | |
| 41 | .Op Fl d | |
| 42 | .Op Fl x | |
| 43 | .Sh DESCRIPTION | |
| 44 | .Nm Ypserv | |
| 45 | is a fundamental part of the network information system called YP. | |
| 46 | This server provides information from YP maps to the YP clients | |
| 47 | on the network. | |
| 48 | .Pp | |
| 49 | A YP map is stored on the server as a | |
| 50 | .Xr db 3 | |
| 51 | database. A number of YP maps is grouped together in a domain. | |
| 52 | .Ar Ypserv | |
| 53 | determines the domains it serves by looking for a directory with | |
| 54 | the domain name in | |
| 55 | .Ar /var/yp . | |
| 56 | .Pp | |
| 57 | YP hasn't been known for high security through the years. In recent years | |
| 58 | security has improved by restricting access to the server. In SunOS 4.1 | |
| 59 | has a new file occured named | |
| 60 | .Ar /var/yp/securenet . | |
| 61 | It contains networks the server can assume is secure. For information about | |
| 62 | file format see | |
| 63 | .Xr securenet 5 . | |
| 64 | .Pp | |
| 65 | Before the author of this server had seen | |
| 66 | .Xr securenet 5 | |
| 67 | another format was implemented | |
| 68 | .Xr ypserv.acl 5 . | |
| 69 | This file format makes it possible to allow and deny hosts and networks | |
| 70 | access to the server. This file can have any name since it's given by | |
| 71 | the argument to | |
| 72 | .Fl a | |
| 73 | (use full path). | |
| 74 | .Pp | |
| 75 | The file used can be reread by sending a SIGHUP to ypserv. The process pid | |
| 76 | can be found in the file | |
| 77 | .Nm /var/run/ypserv.pid | |
| 78 | . | |
| 79 | .Pp | |
| 80 | If a host isn't secure all queries to the server will result in a YP_NODOM | |
| 81 | result. | |
| 82 | .Pp | |
| 83 | If the file | |
| 84 | .Nm /var/yp/ypserv.log | |
| 85 | exists then messages will be written to the file. | |
| 86 | .Pp | |
| 87 | If a directory named the same as the system domainname exists in | |
| 88 | .Nm /var/yp/ | |
| 89 | (ie. the domainname is | |
| 90 | .Nm foo | |
| 91 | and directory | |
| 92 | .Nm /var/yp/foo | |
| 93 | exists), then ypserv will be automatically started at boot time. | |
| 94 | .Pp | |
| 95 | The options are as follows: | |
| 96 | .Bl -tag -width indent | |
| 97 | .It Fl 1 | |
| 98 | Allow ypserv to answer old YP version 1 requests. | |
| 99 | .It Fl a Ar aclfile | |
| 100 | Don't use | |
| 101 | .Ar /var/yp/securenet . | |
| 102 | Use another file with another file format. For futher information see | |
| 103 | man page for | |
| 104 | .Ar ypserv.acl . | |
| 105 | .It Fl d | |
| 106 | Use Internet Domain Name System. If a query to map | |
| 107 | .Ar hosts.byname | |
| 108 | or | |
| 109 | .Ar hosts.byaddr | |
| 110 | fails, make a DNS query and return the result if successful. | |
| 111 | Alternately, if these maps were built on the YP master using | |
| 112 | .Nm makedbm | |
| 113 | .Fl b | |
| 114 | then DNS queries will be done without needing to specify | |
| 115 | .Fl d . | |
| 116 | .It Fl x | |
| 117 | Terminate the server after processing | |
| 118 | .Ar aclfile | |
| 119 | or | |
| 120 | .Ar /var/yp/securenet . | |
| 121 | .El | |
| 122 | .Sh FILES | |
| 123 | .Bl -tag -width /var/yp/ypserv.log -compact | |
| 124 | .It Pa /var/yp/ypserv.log | |
| 125 | .It Pa /var/yp/securenet | |
| 126 | .It Pa /var/run/ypserv.pid | |
| 127 | .El | |
| 128 | .Sh SEE ALSO | |
| 129 | .Xr yp 8 , | |
| 130 | .Xr ypserv.acl 5 , | |
| 131 | .Xr securenet 5 , | |
| 132 | .Xr ypbind 1 | |
| 133 | .Sh AUTHOR | |
| 134 | Mats O Jansson <moj@stacken.kth.se> |