182 lines
5.9 KiB
Groff
182 lines
5.9 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" From: @(#)rcmd.3 8.1 (Berkeley) 6/4/93
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.\" %Id: rcmd.3,v 1.7 1997/02/22 15:00:28 peter Exp %
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.\"
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.Dd February 15, 1996
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.Dt RCMD 3
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.Os BSD 4.2
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.Sh ̾¾Î
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.Nm rcmd ,
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.Nm rresvport ,
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.Nm iruserok ,
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.Nm ruserok
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.Nd ¥ê¥â¡¼¥È¥³¥Þ¥ó¥É¤Ë¥¹¥È¥ê¡¼¥à¤òÌ᤹¥ë¡¼¥Á¥ó
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.Sh ½ñ¼°
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.Fd #include <unistd.h>
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.Ft int
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.Fn rcmd "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "int *fd2p"
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.Ft int
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.Fn rresvport "int *port"
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.Ft int
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.Fn iruserok "u_long raddr" "int superuser" "const char *ruser" "const char *luser"
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.Ft int
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.Fn ruserok "const char *rhost" "int superuser" "const char *ruser" "const char *luser"
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.Sh ²òÀâ
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.Fn rcmd
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´Ø¿ô¤Ï¥¹¡¼¥Ñ¥æ¡¼¥¶¤¬»ÈÍѤ¹¤ë¤â¤Î¤Ç¡¢Í½Ì󤵤줿¥Ý¡¼¥ÈÈÖ¹æ¤Ë½¾¤Ã¤ÆÇ§¾Ú
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¥¹¥¡¼¥à¤ò»ÈÍѤ·¤Æ¥³¥Þ¥ó¥É¤ò¥ê¥â¡¼¥È¥Þ¥·¥ó¤Ç¼Â¹Ô¤·¤Þ¤¹¡£
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.Fn rresvport
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´Ø¿ô¤Ï¡¢¸¢Íø¤¬¤¢¤ë¥Ý¡¼¥È¥¹¥Ú¡¼¥¹¤Î¥¢¥É¥ì¥¹¤È¤È¤â¤Ë¥½¥±¥Ã¥È¤Îµ½Ò»Ò¤òÌá
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¤·¤Þ¤¹¡£
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.Fn ruserok
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´Ø¿ô¤Ï¥µ¡¼¥Ð¤¬»ÈÍѤ¹¤ë¤â¤Î¤Ç¡¢
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.Fn rcmd
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¤ò»ÈÍѤ·¤Æ¥µ¡¼¥Ó¥¹¤òÍ׵᤹¤ë¥¯¥é¥¤¥¢¥ó¥È¤òǧ¾Ú¤·¤Þ¤¹¡£3¤Ä¤¹¤Ù¤Æ¤Î´Ø¿ô
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¤ÏƱ¤¸¥Õ¥¡¥¤¥ë¤Ë¸ºß¤·¡¢
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.Xr rshd 8
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¥µ¡¼¥Ð¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤Þ¤¹¡£
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.Pp
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.Fn rcmd
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´Ø¿ô¤Ï
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.Xr gethostbyname 3
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¤ò»ÈÍѤ·¤Æ¥Û¥¹¥È
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.Fa *ahost
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¤òÄ´¤Ù¡¢¥Û¥¹¥È¤¬Â¸ºß¤·¤Ê¤¤¾ì¹ç¤Ï \-1 ¤òÌᤷ¤Þ¤¹¡£¥Û¥¹¥È¤¬Â¸ºß¤¹¤ë¾ì¹ç
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¤Ï¡¢¥Û¥¹¥È¤Îɸ½à̾¤Ë
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.Fa *ahost
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¤òÀßÄꤷ¡¢´ûÃΤΥ¤¥ó¥¿¡¼¥Í¥Ã¥È¥Ý¡¼¥È
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.Fa inport
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¤Ë¾ïÃ󤹤륵¡¼¥Ð¤È¤ÎÀܳ¤ò³ÎΩ¤·¤Þ¤¹¡£
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.Pp
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Àܳ¤¬³ÎΩ¤µ¤ì¤ë¤È¡¢¥¿¥¤¥×
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.Dv SOCK_STREAM
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¤Î¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥É¥á¥¤¥ó¤Î¥½¥±¥Ã¥È¤¬¸Æ¤Ó½Ð¤·Â¦¤ËÌᤵ¤ì¡¢
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.Em stdin
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¤È
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.Em stdout
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¤È¤·¤Æ¥ê¥â¡¼¥È¥³¥Þ¥ó¥É¤Ë»ØÄꤵ¤ì¤Þ¤¹¡£
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.Fa fd2p
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¤¬ 0°Ê³°¤Ç¤¢¤ë¾ì¹ç¤Ï¡¢À©¸æ¥×¥í¥»¥¹¤ÎǤ°Õ¤Î¥Á¥ã¥ó¥Í¥ë¤¬ÀßÄꤵ¤ì¡¢¤½¤Îµ
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½Ò»Ò¤¬
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.Fa *fd2p
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¤ËÇÛÃÖ¤µ¤ì¤Þ¤¹¡£À©¸æ¥×¥í¥»¥¹¤Ï¡¢¤³¤Î¥Á¥ã¥ó¥Í¥ë¤Ç¥³¥Þ¥ó¥É(¥æ¥Ë¥Ã¥È 2)
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¤«¤é¿ÇÃǽÐÎϤòÌᤷ¡¢
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.Tn UNIX
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¥·¥°¥Ê¥ëÈÖ¹æ¤È¤·¤Æ¤³¤Î¥Á¥ã¥ó¥Í¥ë¤Î¥Ð¥¤¥È¤ò¼õ¤±¼è¤ê¡¢¥³¥Þ¥ó¥É¤Î¥×¥í¥»¥¹¥°¥ë¡¼
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¥×¤ËžÁ÷¤·¤Þ¤¹¡£
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.Fa fd2p
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¤¬
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0¤Ç¤¢¤ë¾ì¹ç¤Ï¡¢
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.Em stderr
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(¥ê¥â¡¼¥È¥³¥Þ¥ó¥É¤Î¥æ¥Ë¥Ã¥È 2)¤¬
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.Em stdout
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¤ÈƱ¤¸¤è¤¦¤ËºîÀ®¤µ¤ì¤Þ¤¹¡£Ç¤°Õ¤Î¥·¥°¥Ê¥ë¤ò¥ê¥â¡¼¥È¥×¥í¥»¥¹¤ËÁ÷¿®¤¹¤ë½àÈ÷¤Ï
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¤µ¤ì¤Þ¤»¤ó¤¬¡¢¥Ð¥ó¥É³°¤Î¥Ç¡¼¥¿¤ò»ÈÍѤ¹¤ë¤³¤È¤ÇÃíÌܤòÆÀ¤ë¤³¤È¤Ï¤Ç¤¤Þ¤¹¡£
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.Pp
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¥×¥í¥È¥³¥ë¤Î¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï¡¢
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.Xr rshd 8
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¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£
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.Pp
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.Fn rresvport
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´Ø¿ô¤Ï¡¢¸¢Íø¤¬¤¢¤ë¥¢¥É¥ì¥¹¤¬·ë¤ÓÉÕ¤¤¤¿¥½¥±¥Ã¥È¤ò
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Æþ¼ê¤·¤Þ¤¹¡£¤³¤Î¥½¥±¥Ã¥È¤Ï¡¢
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.Fn rcmd
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¤ä¤½¤Î¾¤Î´Ø¿ô¤Ç¤Î»ÈÍѤËŬ¤·¤Æ¤¤¤Þ¤¹¡£¸¢Íø¤¬¤¢¤ë¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥Ý¡¼¥È¤Ï¡¢
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0¤«¤é 1023¤ÎÈϰϤˤ¢¤ë¤â¤Î¤Ç¤¹¡£¤³¤Î¼ï¤Î¥¢¥É¥ì¥¹¤ò¥½¥±¥Ã¥È¤Ë·ë¹ç¤Ç¤
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¤ë¤Î¤Ï¥¹¡¼¥Ñ¥æ¡¼¥¶¤Î¤ß¤Ç¤¹¡£
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.Pp
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.Fn iruserok
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´Ø¿ô¤È
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.Fn ruserok
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´Ø¿ô¤Ï¡¢
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.Xr gethostbyname 3
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¥ë¡¼¥Á¥ó¤¬Ì᤹¥ê¥â¡¼¥È¥Û¥¹¥È¤Î IP ¥¢¥É¥ì¥¹¤«Ì¾Á°¡¢2¤Ä¤Î¥æ¡¼¥¶Ì¾¡¢
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¥í¡¼¥«¥ë¥æ¡¼¥¶¤Î̾Á°¤¬ ¥¹¡¼¥Ñ¥æ¡¼¥¶¤Î̾Á°¤Ç¤¢¤ë¤«¤É¤¦¤«¤ò¼¨¤¹¥Õ¥é¥°¤ò
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»ÈÍѤ·¤Þ¤¹¡£¥æ¡¼¥¶¤¬¥¹¡¼¥Ñ¥æ¡¼¥¶
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.Em ¤Ç¤Ê¤¤
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¾ì¹ç¤Ï¡¢
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.Pa /etc/hosts.equiv
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¥Õ¥¡¥¤¥ë¤ò¥Á¥§¥Ã¥¯¤·¤Þ¤¹¡£¤³¤Î¸¡º÷¤¬¼Â¹Ô¤µ¤ì¤Ê¤¤¾ì¹ç¡¢¤Þ¤¿¤Ï¤³¤Î¸¡º÷¤Ç
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ÌäÂ꤬ȯÀ¸¤·¤¿¾ì¹ç¤Ï¡¢¥í¡¼¥«¥ë¥æ¡¼¥¶¤Î¥Û¡¼¥à¥Ç¥£¥ì¥¯¥È¥ê¤Î
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.Pa .rhosts
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¤ò¥Á¥§¥Ã¥¯¤·¡¢¥µ¡¼¥Ó¥¹¤ÎÍ׵᤬µö²Ä¤µ¤ì¤Æ¤¤¤ë¤«¤É¤¦¤«¤ò³Îǧ¤·¤Þ¤¹¡£
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.Pp
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¤³¤Î¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Ê¤¤¾ì¹ç¤äÄ̾ï¤Î¥Õ¥¡¥¤¥ë¤Ç¤Ê¤¤¾ì¹ç¡¢¤Þ¤¿¤Ï¥æ¡¼¥¶¤ä
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¥¹¡¼¥Ñ¥æ¡¼¥¶°Ê³°¤¬¤³¤Î¥Õ¥¡¥¤¥ë¤ò½êͤ¹¤ë¾ì¹ç¡¢¤¢¤ë¤¤¤Ï½êͼ԰ʳ°¤¬¤³¤Î
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¥Õ¥¡¥¤¥ë¤Ë½ñ¤¹þ¤á¤ë¾ì¹ç¡¢¥Á¥§¥Ã¥¯¤Ï¼«Æ°Åª¤Ë¥¨¥é¡¼¤È¤Ê¤ê¤Þ¤¹¡£
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¥Þ¥·¥ó̾¤¬
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.Dq Pa hosts.equiv
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¥Õ¥¡¥¤¥ë¤Ë¥ê¥¹¥È¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤Þ¤¿¤Ï¥Û¥¹¥È¤È
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¥ê¥â¡¼¥È¥æ¡¼¥¶Ì¾¤¬
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.Dq Pa .rhosts
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¥Õ¥¡¥¤¥ë¤Ë¸ºß¤¹¤ë¾ì¹ç¤Ï 0¤¬Ìᤵ¤ì¤Þ¤¹¡£¤½¤Î
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¾¤Î¾ì¹ç¡¢
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.Fn iruserok
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¤È
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.Fn ruserok
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¤Ï \-1 ¤òÌᤷ¤Þ¤¹¡£
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.Xr gethostname 3
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¤ÇÆþ¼ê¤·¤¿¥í¡¼¥«¥ë¥É¥á¥¤¥ó¤¬¥ê¥â¡¼¥È¥É¥á¥¤¥ó¤ÈƱ¤¸¤Ç¤¢¤ë¾ì¹ç¤Ï¡¢¥Þ¥·¥ó
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̾¤Î¤ß¤ò»ØÄꤹ¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
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.Pp
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.Fn iruserok
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´Ø¿ô¤Ï¡¢¥»¥¥å¥ê¥Æ¥£¤ÎÍýͳ¤Ç¹â¤¯É¾²Á¤µ¤ì¤Þ¤¹¡£
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.Fn ruserok
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´Ø¿ô¤Ï DNS Á´ÂΤò¿®ÍѤ¹¤ëɬÍפ¬¤¢¤ê¡¢¿¯³²¤µ¤ì¤ë²ÄǽÀ¤¬¤¢¤ê¤Þ¤¹¤¬¡¢
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.Fn iruserok
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¤ÏºÇÂç¤Ç¤â¥í¡¼¥«¥ë DNS ¤ò¿®Íꤹ¤ëɬÍפ·¤«¤¢¤ê¤Þ¤»¤ó¡£
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.Sh ¿ÇÃÇ
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.Fn rcmd
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´Ø¿ô¤Ï¡¢ÌäÂ꤬¤Ê¤±¤ì¤Ð͸ú¤Ê¥½¥±¥Ã¥Èµ½Ò»Ò¤òÌᤷ¤Þ¤¹¡£¥¨¥é¡¼¤¬
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ȯÀ¸¤·¤¿¾ì¹ç¤Ï \-1 ¤òÌᤷ¡¢¿ÇÃÇ¥á¥Ã¥»¡¼¥¸¤òɸ½à¥¨¥é¡¼¤Ë½ÐÎϤ·¤Þ¤¹¡£
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.Pp
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.Fn rresvport
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´Ø¿ô¤Ï¡¢ÌäÂ꤬¤Ê¤±¤ì¤Ð͸ú¤Ç·ë¹ç¤·¤¿¥½¥±¥Ã¥Èµ½Ò»Ò¤òÌᤷ¤Þ¤¹¡£¥¨¥é¡¼¤¬
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ȯÀ¸¤·¤¿¾ì¹ç¤Ï \-1 ¤òÌᤷ¡¢¥¨¥é¡¼¤Î¸¶°ø¤Ë½¾¤Ã¤Æ¥°¥í¡¼¥Ð¥ëÊÑ¿ô
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.Va errno
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¤òÀßÄꤷ¤Þ¤¹¡£¡Ö¤¹¤Ù¤Æ¤Î¥Í¥Ã¥È¥ï¡¼¥¯¥Ý¡¼¥È¤¬»ÈÍѤµ¤ì¤Æ¤¤¤ë¡×¤³¤È¤ò¼¨¤¹
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¾ì¹ç¤Ï¡¢¥¨¥é¡¼¥³¡¼¥É
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.Dv EAGAIN
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¤¬¥ª¡¼¥Ð¥í¡¼¥É¤µ¤ì¤Þ¤¹¡£
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.Sh ´ØÏ¢¹àÌÜ
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.Xr rlogin 1 ,
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.Xr rsh 1 ,
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.Xr intro 2 ,
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.Xr rexec 3 ,
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.Xr rexecd 8 ,
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.Xr rlogind 8 ,
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.Xr rshd 8
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.Sh Îò»Ë
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¤³¤Î´Ø¿ô¤Ï¡¢
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.Bx 4.2
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¤ËÄɲ䵤ì¤Þ¤·¤¿¡£
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