.TH HOSTS_OPTIONS 5
.SH NAME
hosts_options \- ۥȥȥγĥ
.SH DESCRIPTION
ʸϡhosts_access(5) ʸˡΥץʥʳĥ
ĤƲ⤹ΤǤ롣γĥϡץ򥳥ѥ뤷
ݤѤβݤޤ롣㤨СMakefile Խѥ
 PROCESS_OPTIONS ͭˤǤ롣
.PP
ĥ񼰤ϤΤ褦ʷǤ:
.sp
.ti +3
daemon_list : client_list : option : option ...
.PP
ǽΤդĤΥեɤˤĤƤϡhosts_access(5) Υޥ˥奢
Dz⤵Ƥ롣롼λĤʬϡ0 İʾΥץ
Ǥ롣ץǤϡ٤Ƥ ":" ȤʸϥХå
ˤäݸɬפ롣
.PP
ץ "keyword" ޤ "keyword value" ηȤ롣
󷲤ϵҤ줿˲ᤵ롣ĤΥץ 
%<letter> ˤ֤ꤷƤ롣ΥСȤθߴ
Τˡ"="  keyword  value() δ֤ˤƤ
롣
.SH LOGGING (εϿ)
.IP "severity mail.info"
.IP "severity notice"
٥Ȥ˵Ͽ severity("㤷") Υ٥ѹ롣
Facility names (ؤιܡȤ mail) ǤդǤꡢ
Ť syslog μǤϥݡȤƤʤseverity ץ
ϡؼ줿٥ȤĴ뤫뤤̵뤹뤿ͭդ
롣
.SH ACCESS CONTROL (β)
.IP "allow"
.IP "deny"
ӥβݡΥץϡ롼κǸ˵Ҥʤ
Фʤʤ
.PP
\fIallow\fR  \fIdeny\fR ϡ٤ƤΥȥΥ롼
򡢤ҤȤĤΥե롢Ȥ\fIhosts.allow\fR Ǽ
ǽˤƤ롣
.sp
줿ۥȤ˥Ĥˤ:
.sp
.ne 2
.ti +3
ALL: .friendly.domain: ALLOW
.ti +3
ALL: ALL: DENY
.sp
ȥ֥ᥤȤʤ롢ĤΥۥȤơ٤ƤΥۥ
ΥĤˤ:
.sp
.ne 2
.ti +3
ALL: .bad.domain: DENY
.ti +3
ALL: ALL: ALLOW
.sp
ɥᥤ̾ΥѥκǽˤϥɥåȤĤƤܤ줿
.SH RUNNING OTHER COMMANDS (ޥɤμ¹)
.IP "spawn shell_command"
hosts_access(5) Υޥ˥奢Dz⤵ %<letter> ֤
¹Ԥ줿ΤˡҥץǡΥ륳ޥɤ¹Ԥ롣
ޥɤɸϡɸϡɸ२顼Ϥ null ǥХ
˷Ҥ֤Ǽ¹Ԥ롣äơˤäƥ饤
ۥȤȤβä𤹤褦ʤȤϤʤ㤨:
.sp
.nf
.ti +3
spawn (/some/where/safe_finger -l @%h | /usr/ucb/mail root) &
.fi
.sp
ϡ%h  ⡼ȥۥȤ̾ޤϥɥ쥹֤Τ
ˡХå饦ɤλҥץǡ륳ޥ
"safe_finger -l @%h | mail root" ¹Ԥ롣
.sp
Ǥϡ(⡼Ȥ) finger СƤǡ
äơ᡼⤿餵ǽޤ뤿ᡢɸ 
"finger" ޥɤä "safe_finger" ޥɤѤƤ롣
 "safe_finger" ޥɤϡdaemon wrapper package ˴ޤޤ
롣ϡɸ finger ϪʧȤơ⡼ȥۥȤ
ǡե륿󥰤롣
.IP "twist shell_command"
hosts_access(5) Υޥ˥奢Dz⤵ %<letter> ֤
¹Ԥ줿ΤˡߤΥץ׵ᤵ줿륳ޥɤ
롣ɸϡɸϤɸ२顼Ϥϡ饤
Υץ³롣Υץϥ롼κǸ˵Ҥɬ
פ롣
.sp
ºݤ ftp ǡäơåѹƥ饤
֤ˤ:
.sp
.nf
.ti +3
in.ftpd : ... : twist /bin/echo 421 Some bounce message
.fi
.sp
饤ȥץȲä̤ˡȤơҤ 
\fIbanners\fR ץ򻲾Ȥ줿
.sp
/some/other/in.telnetd 򡢥ޥɥ饤ΰץδĶ
ѿˤäƱ뤳Ȥʤ¹Ԥˤ:
.sp
.nf
.ti +3
in.telnetd : ... : twist PATH=/some/other; exec in.telnetd
.fi
.sp
ٹ: UDP ӥˤƤϡstandard I/O ѡޤϥ饤
ȥץȤθ򿮤Τ read(2)/write(2) 롼ȡ
command Ʊʤ褦; UCP ϡޤ̤δŪ I/O ɬ
Ȥ롣
.SH NETWORK OPTIONS (ͥåȥ˴ؤ륪ץ)
.IP "keepalive"
Ū˥Сϥ饤Ȥ˥å褦ˤʤ롣⤷
饤Ȥαʤ硢³Ǥ줿Τȸʤ
롣 keepalive ץϡ桼С˷ѤäƤ
֤ˡޥŸڤäͭѤǤ롣keepalive ץ 
datagram (UDP) services ˤΩʤ
.IP "linger number_of_seconds"
СΥץ³ǤΤͥ뤬̤ǡ
ߤ֤ؼ롣
.SH USERNAME LOOKUP (桼̾䤤碌)
.IP "rfc931 [ timeout_in_seconds ]"
RFC 931 (TAP, IDENT, RFC 1413) ˤǡ饤ȥ桼
̾䤤碌롣ӥ TCP ʳžˡ˴ŤƤ
ϡΥץۤä̵뤵롣ˡϥ饤
ȤΥƥब RFC 931 ȸߴΤǡ (IDENT ʤ) 
餻Ƥ뤳Ȥǡnon-UNIX Υ饤Ȥ³Ф
Ƥϡ٤ʤtimeout ޤǤÿǤդǤ롣
timeout ؼʤ硢ѥ˷줿ͤȤ
롣
.SH MISCELLANEOUS (¾λ)
.IP "banners /some/directory"
`/some/directory' ǡǡץ̾Ȱפե
 (ȤСtelnet ӥʤ in.tenletd)õƤ
饤ȤФƥԡ롣ʸϡCR(carriage-return)
ʸ֤졢%<letter> Ÿ (hosts_access(5) 
Υޥ˥奢򻲾)
.sp
tcp wrapper ۥˤϡݤ褯 banner ݼ餹뤿Ρ
ץ makefile (Banners.Makefile) ޤޤƤ롣
.sp
ٹ: banners  connection-oriented (TCP) network (ͥ
˻ظι⤤ӥ)ǤΤѤǤ롣
.IP "nice [ number ]"
ץ nice ͤѹ(ͤ 10)¾Υץˡ
¿ CPU 񸻤Ƥˤϡͤؼ롣
.IP "setenv name value"
(name, value) ΥڥץδĶѿꤹ롣value  
%<letter> ؤŸΤȲꤵ졢ۥ磻ȥڡѤ
ɬפ(ζڤΤƤ)
.sp
ٹ: ¿Υͥåȥǡ login ޤ shell ץ
ƵưˡδĶѿꥻåȤ롣
.IP "umask 022"
Υӥȥ󥳥ޥ umask Ȼǽ022  umask ϡ
group  world ˤ񤭹߶ػ֤ˤäơեκ
ͽɤ롣umask ΰ 8 ʿǤʤФʤʤ
.IP "user nobody"
.IP "user nobody.kmem"
桼 "nobody" (ޤϥ桼 "nobody", 롼 "kmem")ϡ
̤ʰȤߤʤǽηϡroot ¤ƤΥӥ
Ԥ褦 inetdμͭѤǤ롣ܤηϡ롼פ
¤ΤߤɬפʥӥΤͭѤǤ롣
.SH DIAGNOSTICS
ȥ롼ʸˡ顼ȯ줿硢顼 
syslog ǡ𤵤롣;פʥץ̵뤵졢
ϵݤ롣
.SH SEE ALSO
hosts_access(5), Ūʥȥ
.SH AUTHOR
.na
.nf
Wietse Venema (wietse@wzv.win.tue.nl)
Department of Mathematics and Computing Science
Eindhoven University of Technology
Den Dolech 2, P.O. Box 513, 
5600 MB Eindhoven, The Netherlands
.SH 
.na
.nf
FUKUSHIMA Osamu/ʡ <fuku@amorph.rim.or.jp>
\" @(#) hosts_options.5 1.10 94/12/28 17:42:28