̾??

rshd — ???⡼?ȥ??????Υ?????

????

rshd [-?DLaln]

????

rshd ?桼?ƥ????ƥ??ϡ? rcmd(3) ?롼?????Τ????Υ????ФǤ??ꡢ???̤Ȥ??? rsh(1) ?桼?ƥ????ƥ??μ¹ԤΤ?????ɬ?פȤʤ륵???ФǤ??? rshd ?ϡ??????Ǥ????ۥ??Ȥ??????ø??ݡ????ֹ??˴??Ť??? ǧ?ڤ??Ԥʤ????Ȥˤ??äơ??ץ????????Υ??⡼?ȼ¹Ե?ǽ???󶡤??ޤ???

rshd ?桼?ƥ????ƥ??ϡ? “cmd” ?????ӥ??˳??????Ƥ??줿?ݡ??? (services(5) ????) ?ǥ????ӥ??׵????????դ??ޤ????????ӥ??׵????????????ȡ? ?????Фϰʲ??μ????򳫻Ϥ??ޤ?:

1. ?????Фϡ????饤?????Ȥ??׵ḵ?ݡ????ֹ??Υ????å??򤪤??ʤ??ޤ??? ?׵ḵ?ݡ????ֹ? ?? 512 ???? 1023 ???ϰϤˤʤ????硢?????Ф???³?????????Ǥ??ޤ???
2. ?????Фϡ??????åȤ??? ?̥? ?Х??? (`\0') ?򸡽Ф????ޤ?ʸ?????ɤߤޤ??? ????ʸ?????ϡ? ASCII ?????ɤˤ??? 10 ?ʿ??ο??ͤ??Ѵ????ޤ???
3. ???ƥå? 2 ?Ǽ??????????ͤ? 0 ?Ǥʤ????硢???ο??ͤ? ɸ?२?顼???? ?ǻ??Ѥ??? 2 ???ܤΥ??ȥ꡼???Υݡ????ֹ??Ȥ??Ʋ??ᤷ?ޤ??? ?????ƥ??饤?????ȥޥ??????Ǥ????ꤵ?줿?ݡ????ֹ??? 2 ???ܤ???³?????????ޤ??? ???? 2 ???ܤ???³???׵ḵ?ݡ????ֹ??⡢512 ???? 1023 ???ϰϤǻ??ꤷ?ޤ???
4. ?????Фϡ????饤?????Ȥ??׵ḵ???ɥ쥹???????å??????????????ۥ???̾???׵ᤷ ?ޤ? (gethostbyaddr(3), hosts(5), named(8) ?򻲾Ȥ??Ƥ???????)???ۥ???̾???????Ǥ??ʤ????硢 ?ޤ??ϳ?ǧ?????ۥ???̾?ȥ??ɥ쥹?Ȥ????פ??ʤ????硢 ?ɥå?ɽ??ˡ?ˤ????ۥ??ȥ??ɥ쥹???Ѥ??ޤ???
5. ?ǽ??Υ????åȤ??𤷤ơ??̥뽪ü???줿???? 16 ʸ???? ?桼??̾?????????ޤ??? ?桼??̾?ϡ? ???饤?????? ?ޥ??????Υ桼?????̤˻??Ѥ??ޤ???
6. ?ǽ??Υ????åȤ??𤷤ơ??̥뽪ü???줿???? 16 ʸ???? ?桼??̾?????????ޤ??? ?桼??̾?ϡ? ?????? ?ޥ??????Υ桼??ǧ?ڤ˻??Ѥ??ޤ???
7. ?ǽ??Υ????åȤ??𤷤ơ??????????Ϥ??????٤????̥뽪ü???줿 ???ޥ??ɤ????????ޤ??? ???ޥ???Ĺ?????¤ϡ??????ƥ??ΰ????ꥹ?ȥ??????ξ??¤˰?¸???ޤ???
8. rshd ?桼?ƥ????ƥ??ϡ? /etc/hosts.equiv ???????????桼???Υۡ????ǥ??쥯?ȥ?????¸?ߤ??? .rhosts ?ե????????Ѥ??? ruserok(3) ?????Ѥ??ơ??桼??ǧ?ڤ??Ԥ??ޤ??? -l ???ץ??????ϡ??桼?????????ѥ桼???Ǥʤ??¤ꡢ .rhosts ?ե??????˴??Ť??? ruserok(3) ?Τ??٤Ƥ?ǧ?ڤ򤪤??ʤ??ʤ??褦?ˤ??ޤ???
9. ?ǽ??Υ????åȤ??Ѥ??? ?̥? ?Х??Ȥ??֤??????ޥ??ɥ饤?? ?򡢥桼?????̾??Υ??????󥷥??????Ϥ??ޤ??? ???????? rshd ?ˤ??äƳ?Ω???줿?ͥåȥ????³???Ѿ????ޤ???

???ץ??????ϼ????̤??Ǥ?:

-?

??????ˡ?Υ??å???????ɽ????????λ???ޤ???

-D

TCP_NODELAY ?????åȥ??ץ??????????ꤷ?ޤ??? ??????Ϣ³???? (back-to-back) ?񤭹??ߤ???ǽ?????夵???ޤ????? ?ͥåȥ???ȥ??ե??å????????Ƥ??ޤ??ޤ???

-L

???٤Ƥ??????????????????? syslogd(8) ????ͳ???? auth.info ???å??????Ȥ??ơ????????ޤ???

-a

???Υե饰??̵?뤵???ޤ??? ?ߴ????Τ????ˤ????ޤ???

-l

?桼?????????ѥ桼???Ǥʤ??¤ꡢ?桼???? .rhosts ?ե???????ǧ?ڤ˻??Ѥ??ޤ?????

-n

?ȥ??󥹥ݡ??ȥ??٥??? keepalive ???å???????̵???ˤ??ޤ??? ?????ˤ??ꡢ???饤?????Ȥ??????å??夷??????ã??ǽ?ˤʤä??????ˡ? ???å????󤬥????ॢ???Ȥ????Τ??ɤ??ޤ???

????

?ʲ??˼??????Τ????Ǹ??Τ??Τ??????? ???٤Ƥο??ǥ??å????????ǽ??Υ????åȤ??Ѥ????֤????塢 ???٤Ƥ???³?򥯥????????ޤ??? ???顼?ϡ????Ԥ??? 1 ?Х??ȤȤ????? 1 ???֤????뤳 ?ȤǤ狼???ޤ? (???????󥷥????¹Ԥ????Τ??٤ƤΥ??ƥåפ??????˴?λ???????硢 ?嵭?Υ??ƥå? 10 ?ν????? 0 ???֤??ޤ?)??

Locuser too long.

???饤?????ȥޥ??????Υ桼??̾????16 ʸ????Ķ???Ƥ??ޤ???

Ruser too long.

???⡼?ȥޥ??????Υ桼??̾????16 ʸ????Ķ???Ƥ??ޤ???

Command too long.

?Ϥ??줿???ޥ??ɥ饤????Ĺ???????????ꥹ?Ȥ??礭????Ķ???Ƥ??ޤ? (?????ƥ??˰?¸???ޤ?)??

Login incorrect.

?????桼???˴ؤ??륨???ȥ꤬???ѥ???ɥե?????????Ͽ?????Ƥ??ʤ????? ???Ҥ?ǧ?ڼ?³???˼??Ԥ??ޤ?????

Remote directory.

?ۡ????ǥ??쥯?ȥ??ؤ? chdir(2) ?ؿ??????Ԥ??ޤ?????

Logins not available right now.

?????????桼???Υ??????󥯥饹???Ф??? login.conf ?ˤ????ơ??????줿???ְʳ??? rsh(1) ?桼?ƥ????ƥ???????ޤ?????

Can't make pipe.

ɸ?२?顼???? ??ɬ?פʥѥ??פ??????Ǥ??ޤ????Ǥ?????

Can't fork; try again.

?????Фˤ??? fork(2) ?????Ԥ??ޤ?????

<shellname>: ...

?桼???Υ??????󥷥???????ư?Ǥ??ޤ????Ǥ????? ?ܥ??å??????ν??Ϥ? ɸ?२?顼???? ?˴?Ϣ?Ť????줿???ͥ??????????𤷤??֤????ޤ??Τǡ? ?ե饰?Х??Ȥ????Ԥ??ޤ?????

??Ϣ????

rlogin(1), rsh(1), gethostbyaddr(3), rcmd(3), ruserok(3), auth.conf(5), hosts(5), hosts.equiv(5), login.conf(5), services(5), named(8), rlogind(8), syslogd(8)

??Ϣ?ե?????

/etc/hosts

 

/etc/hosts.equiv

 

/etc/login.conf

 

$HOME/.rhosts

 

/var/run/nologin

/etc/pam.conf

rshd ?ϡ? /etc/pam.conf ?????ȥ??? “rsh” ?????ӥ?̾?ǻ??Ѥ??ޤ??? (pam_unix ?Τ褦??) ?ѥ???ɤ??׵᤹??ǧ?ڥ⥸?塼???ϥ??ݡ??Ȥ????ޤ?????

?Х?

???????Ѥ??????Ƥ????桼??ǧ?ڼ????ϡ??ƥ??饤?????ȥޥ??󤪤?????³???Τ? ?????Ǥ??????ΤȲ??ꤷ?Ƥ??ޤ??? ?????ϰ????ǤϤʤ??Ǥ????? “?????ץ?” ?ʴĶ????Ǥ??????Ǥ???

???ƤΥǡ????ˤĤ??ưŹ沽???Ԥʤ???ǽ?????????????٤??Ǥ???

PAM Ŭ?Ѹ??ϡ? FreeBSD ?Ǥ? .rhosts ???????????ꤹ???ۤ??˲????Υѥå???Ŭ?Ѥ??뤳?Ȥ?ɬ?פǤ???

--- etc/pam.d/rsh.orig  Wed Dec 17 14:36:20 2003
+++ etc/pam.d/rsh       Wed Dec 17 14:30:43 2003
@@ -9 +9 @@
-auth	required	pam_rhosts.so	no_warn
+auth	required	pam_rhosts.so	no_warn	allow_root

TELNET ?Τ褦?ʡ????äȳ?ĥ???Τ????ץ??ȥ??뤬?Ѥ????????٤??Ǥ???

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IPv6 ???ݡ??Ȥϡ?WIDE/KAME ?ץ????????Ȥ??ɲä??ޤ?????