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- Last update: Wed Mar 31 21:39:01 MET DST 1993
-
- This archive contains source to rsh and rlogin daemons that perform
- tcp/ip daemon wrapper style logging and access control, that log the
- remote and local user name, too.
-
- The programs are drop-in replacements for SunOS 4.x, Ultrix 4.[2-3] and
- SunOS 5.[01] (Solaris 2.[01]). They are derived from sources on the
- 43BSD NET/1 tape, released 1989. The stuff from vendors must be even
- older! The next major release will hopefully be something more recent.
-
- Main improvement over previous versions: the rlogin daemon will now
- work with existing /bin/login commands (but it can still be used with
- the fascist login command that is provided with this archive).
-
- Some of the programs use the libwrap.a library that comes with recent
- tcp/ip daemon wrapper (log_tcp) implementations. In order to build, you
- will have to do a
-
- setenv LOG_TCP directory_with_the_libwrap.a_library
-
- Modified versions of BSD 4.3+ r-command daemons, hacked to report remote
- host/user names:
-
- rlogind logging and access control in the style of the tcp
- wrapper (log_tcp) package. This program logs with
- priority daemon.info.
-
- rshd logging and access control in the style of the tcp
- wrapper (log_tcp) package. This program logs with
- priority daemon.info.
-
- Other modified BSD 4.3+ stuff:
-
- login hacked for SunOS 4.x, Ultrix 4.x, SunOS 5.x, with
- optional access control on a per (user,host) or per
- (user, tty) basis, fbtab(5) security, and with
- fascist login failure logging. This program logs
- with priority auth.debug.
-
- telnetd pretty dumb BSD 4.3 telnetd. No access control or logging,
- but compatible with SunOS 4.x, Ultrix 4.x, SunOS 5.x.
-
- lib additional routines used by login and by some daemons.
-
- The README* files in the respective subdirectories give details.
-
- Please report any problems to:
-
- Wietse Venema (wietse@wzv.win.tue.nl)
- Eindhoven University of Technology
- Eindhoven, The Netherlands
-
- Change log:
-
- 901218 Fixed a problem with NOFLSH in login.c that caused interrupts
- to not flush the terminal input queue.
-
- 910209 Added per-user login access control.
-
- 911128 Added support to login for SunOS 4.x style /etc/fbtab, a table
- of devices whose protection and ownership is to be adjusted
- when a user logs in.
-
- 920609 Added tcp wrapper (log_tcp) style access control to rlogind and
- rshd. Improved the remote host name verification code. Added the
- LD_xxx environment fix to login.
-
- 920624 Login no longer just dies when the connection is broken, but first
- reports a login failure. This exposes an old cracker's trick.
-
- 921029 Ported to Ultrix 4.2. Most of the work was finding out why the
- login process did not have a controlling terminal.
-
- 921208 Ported to Solaris 2.0. rlogind can now work with the /bin/login
- that comes with most UNIXes. This was desirable because not
- everyone is in a position to replace /bin/login. Moreover,
- some SYSV logins can't even support the '-f' option at all (or
- everyone could login without a password). 2alpha version released.
-
- 921229 Tested with Solaris 2.1; some cleanups after looking at modified
- 4.4BSD sources from Charles Hedrick (hedrick@cs.rutgers.edu).
- The sources can be found on farside.rutgers.edu.
-
- 930103 Most of the sensible SYSV login features implemented. Frozen after
- check, check and double check. The source really suffered from
- porting and has become too ugly. It becomes a lot more readable
- after running through the unifdef program. Version 2beta released.
-
- 930119 Version 2 released after compatibility patches: rshd path;
- disabling the local domain stripping in login.c; cleanup
- utmpx file after rejecting an rlogin connection.
-
- 930221 Added group support to the login access control code, so that we
- can disallow off-site logins to wheel group members. Group
- matches work only for accounts that are explicitly listed in
- the group file: the matching is not based on group id values.
-
- 930222 Stole the code for the EXCEPT operator from the tcp wrapper.
- This, and the previous change, allows me to replace:
-
- # Disallow non-local logins into the wheel accounts
- +:foo bar baz:LOCAL .my.domain
- -:foo bar baz:ALL
-
- into the much easier to understand:
-
- -:wheel:ALL EXCEPT LOCAL .my.domain
-
- Assuming, of course, that the default is to permit access.
-
- 930331 Added per-program hints on how to configure syslogd.
- Added __svr4__ to the Solaris CFLAGS macro because the
- unbundled C compiler does not define it.
-