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opielogin(1) [linux man page]

OPIELOGIN(1)						      General Commands Manual						      OPIELOGIN(1)

NAME

       opielogin - Replacement for login(1) that issues OPIE challenges.

SYNOPSIS

       opielogin [ -p ] [ -r hostname | -h hostname | -f username
       | username ]

DESCRIPTION

       opielogin provides a replacement for the login(1) program that provides OPIE challenges to users and accepts OPIE responses. It is downward
       compatible with the keylogin(1) program from the Bellcore S/Key Version 1 distribution, which, in turn, is  downward  compatible  with  the
       login(1) program from the 4.3BSD Net/2 distribution.

OPTIONS

       -p     By default, login discards any previous environment.  The -p option disables this behavior.

       -r     Process remote login from hostname.

       -h     The  -h  option  specifies the host from which the connection was received.  It is used by various daemons such as telnetd(8).  This
	      option may only be used by the super-user.

       -f     The -f option is used when a user name is specified to indicate that proper authentication has already been done and that  no  pass-
	      word  need  be  requested.   This option may only be used by the super-user or when an already logged in user is logging in as them-
	      selves.

       username
	      The user name to log in as.

EXAMPLE

       wintermute$ opielogin
       login: kebe
       otp-md5 499 wi43143
       Password: (echo on)
       Password:SLY BLOB TOUR POP BRED EDDY

		      Welcome to wintermute.

       wintermute$

FILES

       /etc/opiekeys -- database of information for the OPIE system.

       /etc/opieaccess -- list of safe and unsafe networks and masks to go with them.

       $HOME/.opiealways -- presence makes OPIE for logins mandatory for the user.

SEE ALSO

       login(1), opie(4), opiekey(1), opiepasswd(1), opieinfo(1), opiesu(1), opieftpd(8), opiekeys(5), opieaccess(5)

AUTHOR

       Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan
       McDonald, and Craig Metz.

       S/Key is a trademark of Bell Communications Research (Bellcore).

CONTACT

       OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join, send an email request to:

       skey-users-request@thumper.bellcore.com

7th Edition							 January 10, 1995						      OPIELOGIN(1)

Check Out this Related Man Page

OPIESU(1)						      General Commands Manual							 OPIESU(1)

NAME

       opiesu - Replacement su(1) program that uses OPIE challenges

SYNOPSIS

       opiesu [ -f ] [ -c ] [ user_name ]

DESCRIPTION

       opiesu  is a replacement for the su(1) program that issues OPIE challenges and uses OPIE responses. It is downward compatible with keysu(1)
       from the Bellcore S/Key Version 1 distribution and the su(1) program from the 4.3BSD Net/2 distribution.

OPTIONS

       -f     If the invoked shell is csh(1),  this option prevents it from reading the ``.cshrc'' file.  (The [f] option may be passed as a shell
	      argument after the login name, so this option is redundant and obsolescent.)

       -c     Set  console  mode  where the user is expected to have secure access to the system. In console mode, you will be asked to input your
	      password directly instead of having to use an OPIE calculator. If you do not have secure access to the system (i.e., you are not	on
	      the system's console), you are volunteering your password to attackers by using this mode.

       user_name
	      The name of the user to become.  The default is root.

EXAMPLE

       wintermute$ opiesu kebe
       otp-md5 498 wi910502
       (OTP response required)
       kebe's password:  (echo on)
       kebe's password: RARE GLEN HUGH BOYD NECK MOLL
       wintermute#

FILES

       /etc/opiekeys database of information for OPIE system.

SEE ALSO

       su(1), opie(4), opiekey(1), opieinfo(1), opiesu(1), opielogin(1), opieftpd(8), opiekeys(5), opieaccess(5)

AUTHOR

       Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan
       McDonald, and Craig Metz.

       S/Key is a trademark of Bell Communications Research (Bellcore).

CONTACT

       OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join, send an email request to:

       skey-users-request@thumper.bellcore.com

7th Edition							 January 10, 1995							 OPIESU(1)
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