̾??

sliplogin —

???ꥢ???????ȥͥåȥ?????󥿥ե????????б??Ť?(?????å?)???Ԥ?

????

sliplogin [loginname [device]]

????

sliplogin ?桼?ƥ????ƥ??ϡ?ɸ?????? (?⤷???ϡ? device) ?? tty ???????Ѥ???¾?Υۥ??Ȥ? Serial Line IP (SLIP) ?ˤ?????³????Ω???뤿???Υ??ޥ??ɤǤ??? ???Τ????ˡ??ޤ? /etc/sliphome/slip.hosts ?ե??????򸡺????????? loginname ?Ȱ??פ??륨???ȥ????????Ф??ޤ??? (????????̾????ά???줿???硢???ޥ??ɤ???ư?????桼???Υ???????̾???Ѥ? ?????ޤ?) ????????̾?Ȱ??פ??륨???ȥ꤬???Ĥ??ä????硢?????? SLIP ??Ŭ???????? (8?ӥå?Ʃ??????????) ?ˤ??졢???ץ??????β????ѥ??᡼?????Ȥä? SLIP ???????Ѵ??????ޤ???

?????ѥ??᡼???Υ??ץ??????ϼ??ΤȤ????Ǥ?: ‘normal’, ‘compress’, ‘noicmp’, ‘autocomp’ ???????Ϥ??줾?졢 ‘?̾??????? (?إå????̤򤷤ʤ?)’ ?? ‘VJ?إå????̤??Ԥ?’ ?? ‘ICMP ?ѥ??åȤ?̵?뤹??’ ?? ‘VJ?إå????̤???ư???ꤹ?? (???꤬???ݡ??Ȥ??Ƥ????Ȥ??Τߥإå????̤???)’ ?Ǥ???

???θ塢 IP ???ɥ쥹???ͥåȥޥ????ʤɤ????????Ԥʤ??? SLIP ???󥿥ե????????????Τ????Υ????륹?????ץȤ??¹Ԥ??? ?ޤ???

?̾???????Τ????Υ????륹?????ץȥե??????? /etc/sliphome/slip.login ?Ǥ??????????Υۥ??ȸ??????????Τ????ˡ? /etc/sliphome/slip.login.loginname ?Ȥ????????륹?????ץȥե????뤬???ä??????ϡ??????餬?¹Ԥ????ޤ??? ???????ץȤϡ??ʲ??Υѥ??᡼???ȤȤ??˵?ư?????ޤ???

slipunit: ?????˳??????Ƥ????? SLIP ???󥿥ե??????Ǥ??? ?㤨?С? 0 ?ξ??硢???????Ƥ????? SLIP ???󥿥ե??????? sl0 ?Ǥ???
speed: ????®?٤Ǥ???
args: loginname ?????ꤷ?Ƶ?ư???????硢 /etc/sliphome/slip.hosts ???б??????ȥ??˵??Ҥ????Ƥ????????Ǥ???

?????ѥ桼???Τߤ????ͥåȥ?????󥿥ե??????Υ????å????Ԥ????Ȥ? ?????ޤ??? ?ͥåȥ?????󥿥ե??????ϡ????⡼?ȥۥ???¦?ǲ??????Ǥ??뤫?? ?????????ۥ???¦?? sliplogin ?ץ?????????λ?????????ˤϼ?ưŪ???б??Ť??????? (?ǥ??å?) ?????ޤ??? ?????ͥ? SLIP ?⥸?塼?뤬???ꤵ???Ƥ??????硢???Υ??󥿥ե?????????ͳ ???????ꤵ???Ƥ??????Ƥη?ϩ?ϡ?Ʊ???˾??Ǥ??ޤ??? ¾?ν??????Ԥ??????????ȤǤϡ??????????ǻ??? /etc/sliphome/slip.logout ?ե??????⤷???? /etc/sliphome/slip.logout.loginname ?ե????뤬ͭ???Ф??????Ƥ??¹Ԥ????ޤ??Τǡ????????ȤäƲ??????? ??ư???ˤϡ????????󥹥????ץȤ?Ʊ????????Ϳ???????ޤ???

/etc/sliphome/slip.hosts ?ν???

???????? (`#' ?ǳ??Ϥ?????) ?????Ӷ????? (?⤷???϶????ǳ??Ϥ?????) ?? ̵?뤵???ޤ??? ¾?ιԤϡ? loginname ?ǻϤޤ?ɬ?פ??????ޤ??? ????????¾?ΰ????ˤĤ??Ƥϡ????Υ???????̾???б????Ƽ¹Ԥ????? slip.login ?ե??????˱????????ΤǤ????С????Ǥ⤫?ޤ??ޤ????? ?????ϡ????ڡ????䥿?֤Ƕ??ڤꡢ sh(1) ???????????륯?????Ȥʤɤ??Ѥ??ƤޤȤ??ޤ?(?????? loginname ?ϥ??????ȤǤ??ޤ???)?? ?̾?ƹԤϰʲ??η????ǵ??Ҥ????ޤ?:

loginname local-address remote-address netmask opt-args

local-address ?? remote-address ?ˤĤ??Ƥϡ??ߤ?????³?????? SLIP ???󥿥ե??????˳??????Ƥ????? IP ???ɥ쥹?? (?ۥ???̾????????) ???ꤷ?ޤ????????ơ? netmask ?ˤĤ??Ƥϡ?Ŭ?ڤ? IP ?ͥåȥޥ????????ꤷ?ޤ??? ???????ΰ????ϡ?ľ?? ifconfig(8) ???Ϥ????ޤ??? opt-args ?ϡ????ץ??????????Ǥ??ꡢ?????????????Ѥ??????ޤ???

FreeBSD ?Ǥ??ɲ?

?ɲä? SLIP ?????ѥե????? /etc/sliphome/slip.slparms ?????뤫?⤷???ޤ????? ?????Υۥ??Ȥ˰ۤʤ????꤬ɬ?פǤ??????硢 ?ե????? /etc/sliphome/slip.slparms.loginname ??¸?ߤ????С????????˻Ȥ????ޤ???

/etc/sliphome/slip.slparms* ?ν???

???????? (`#' ?ǳ??Ϥ?????) ?????Ӷ????? (?⤷???϶????ǳ??Ϥ?????) ?? ̵?뤵???ޤ??? ???Υե??????ˤ϶????Ƕ??ڤ??줿 1 ???? 3 ?Ĥο??????񤭤ޤ??? ?????Ͻ??ˡ? keepalive, outfill, slunit ????̣???ޤ???

keepalive: SLIP "keep alive" ?????ॢ???Ȼ??֤???ñ?̤????ꤷ?ޤ??? FRAME_END ?????λ??????˼????Ǥ??ʤ????? sliplogin ?ϲ??????Ĥ??ƽ?λ???ޤ??? ??ά???ϥ????ॢ???Ȥ????ꤵ???ޤ??? ( 0 ?Ǥ?)??
outfill: SLIP "out fill" ?????ॢ???Ȼ??֤???ñ?̤????ꤷ?ޤ??? ?????ˤ??ꡢ????¦?? "keep alive" ?????ॢ???Ȥ?ɬ?פ? FRAME_END ?򤳤λ??????????????ޤ??? ??ά???ϥ????ॢ???Ȥ????ꤵ???ޤ??? ( 0 ?Ǥ?)??
slunit: SLIP ???˥å??ֹ???ľ?ܻ??ꤷ?ޤ??? 2 ?ĤΥ??󥿥ե???????Ʊ?????˥å??ֹ??ˤʤ??ʤ????????å??򤷤ʤ??Τǡ? ???դ?ɬ?פǤ??? ??ά????ưŪ?˥??˥å??ֹ??????????Ƥޤ???

???Ȥ? 2 ?ĤΥѥ??᡼??????ά???줿?Ȥ??ϡ????????б????? SLIP ???????ˤϱƶ??? ?????ޤ??󡣺ǽ??? 2 ?ĤΥѥ??᡼???? 0 ?Ǥ????Ȥ??ˤ⡢???????б??????????? ?ƶ????ޤ?????

??????

?̾ sliplogin ???Ȥ????硢 ???⡼?Ȥ? SLIP ?????Ȥ??Ȥ? sliplogin ?򥷥????ե??????ɤ˻??? /etc/passwd ?Υ????ȥ????????ޤ??? ?㤨??

Sfoo:ikhuy6:2010:1:slip line to foo:/tmp:/usr/sbin/sliplogin

(?????Ǥϡ????⡼?ȥۥ??? hostname ?Υ?????????̾?? Shostname ?Ȥ??Ƥ??ޤ?) ???ˡ? slip.hosts ?ˡ??ʲ??Τ褦?ʥ????ȥ????ɲä??ޤ?:

Sfoo	`hostname`	foo	netmask

?????ǡ? `hostname` ?ϡ? sh(1) ?ˤ??ä?ɾ???????????????ۥ???̾?Ȥʤꡢ netmask ?ϥ????????ۥ??Ȥ? IP ?ͥåȥޥ????Ǥ???

???ջ??ब?????ޤ??? sliplogin ?ϡ?root ?? setuid ???ʤ????Фʤ??ޤ????? ?????????ƥ??ۡ????ǤϤ????ޤ??󤬡????????ΰ????ۤ? sliplogin ???Ĥ??ä?ü???β??????Ȥ??ʤ??????ꡢ???⡼?Ȥ? SLIP ?????ȤΥ桼???? ???????????Բ?ǽ?ˤ????ꤹ?뤳?Ȥ??Ǥ??ޤ??? ???????ɤ??????ˡ? sliplogin ???桼?? root ???롼?? network ?⡼?? 4550 ?ǥ??󥹥ȡ??뤷?????롼?? network ?Υ????ФΤߤ? sliplogin ???¹Բ?ǽ?Ȥ??ޤ??? ?????ƥ??????Ԥϡ? ?????ʥ桼?????????????롼?פΥ????ФǤ??뤳?Ȥ???ǧ???٤??Ǥ???

????

sliplogin ?桼?ƥ????ƥ??ϡ??͡??ʾ????? daemon ?? facility ?????ɤǥ????ƥ??????ǡ????? syslogd(8) ???̤??ơ? syslog ?˽񤭽Ф??ޤ??? ?ʲ??????????礭???̤˥??å??????????󤷤ޤ???

???顼

ioctl (TCGETS): ??ͳ: TCGETS ioctl() ???Ѥ????????Υѥ??᡼???????????Ԥ??ޤ?????
ioctl (TCSETS): ??ͳ: TCSETS ioctl() ???Ѥ????????Υѥ??᡼?????꤬???Ԥ??ޤ?????
/etc/sliphome/slip.hosts: ??ͳ: /etc/sliphome/slip.hosts ?ե????뤬?????ץ??????ޤ?????
access denied for user: user ?????ȥ꤬ /etc/sliphome/slip.hosts ?ˤ????ޤ?????

????

attaching slip unit unit for loginname: SLIP ???˥å? unit ?ϡ??????å??????????ޤ?????

??Ϣ?ե?????

/etc/sliphome/slip.hosts: ?ۥ??ȤΥ???????̾?ȥѥ??᡼???Υꥹ?ȡ?
/etc/sliphome/slip.login: ??³???ʤ??줿?Ȥ??˼¹Ԥ????륹?????ץȡ?
/etc/sliphome/slip.login.loginname: loginname ?ˤ??ä???³???ʤ??줿?Ȥ??˼¹Ԥ????륹?????ץȡ?
/etc/sliphome/slip.logout: ??³???????줿?Ȥ??˼¹Ԥ????륹?????ץȡ?
/etc/sliphome/slip.logout.loginname: loginname ?ˤ??ä???³???????줿?Ȥ??˼¹Ԥ????륹?????ץȡ?
/etc/sliphome/slip.slparms: ?ɲäΥѥ??᡼???ե????롣
/etc/sliphome/slip.slparms.loginname: loginname ?Ѥ??ɲäΥѥ??᡼???ե????롣
/var/run/ttyXn.if: ttyXn ???Ф??? sliplogin ???????ʤ??줿???˻??Ѥ??????ͥåȥ?????󥿥ե?????̾ ????Ǽ???ޤ???
/var/run/slX.pid: ???󥿥ե????? slX ?????Ѥ??? sliplogin ?ץ??????? PID ????Ǽ???ޤ???

??Ϣ????

slattach(8), syslogd(8)

/usr/share/examples/sliplogin

????

sliplogin ?桼?ƥ????ƥ??ϡ? 4.3BSD-Reno ???о줷?ޤ?????