1#/* Copyright 1988,1990,1993 by Paul Vixie
2# * All rights reserved
3# */
4
5##
6## Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
7## Copyright (c) 1997,2000 by Internet Software Consortium, Inc.
8##
9## Permission to use, copy, modify, and distribute this software for any
10## purpose with or without fee is hereby granted, provided that the above
11## copyright notice and this permission notice appear in all copies.
12##
13## THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
14## WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15## MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
16## ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17## WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18## ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
19## OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20##
21
22ISC Cron - January 2004
23[V4.0 was November, 2000]
24[V4.0b1 was September 7, 1997]
25[V3.1 was some time after 1993]
26[V3.0 was December 27, 1993]
27[V2.2 was some time in 1992]
28[V2.1 was May 29, 1991]
29[V2.0 was July 5, 1990]
30[V2.0-beta was December 9, 1988]
31[V1.0 was May 6, 1987]
32ftp://ftp.isc.org/isc/cron/
33
34This is a version of 'cron' that is known to run on most systems. It
35is functionally based on the SysV cron, which means that each user can have
36their own crontab file (all crontab files are stored in a read-protected
37directory, usually /var/cron/tabs). No direct support is provided for
38'at'; you can continue to run 'atrun' from the crontab as you have been
39doing. If you don't have atrun (i.e., System V) you are in trouble.
40
41A messages is logged each time a command is executed; also, the files
42"allow" and "deny" in /var/cron can be used to control access to the
43"crontab" command (which installs crontabs). It hasn't been tested on
44SysV, although some effort has gone into making the port an easy one.
45
46To use this: Sorry, folks, there is no cutesy 'Configure' script. You'll
47have to go edit a couple of files... So, here's the checklist:
48
49 Read all the FEATURES, INSTALL, and CONVERSION files
50 Edit config.h
51 Edit Makefile
52 (both of these files have instructions inside; note that
53 some things in config.h are definable in Makefile and are
54 therefore surrounded by #ifndef...#endif)
55 'make'
56 'su' and 'make install'
57 (you may have to install the man pages by hand)
58 kill your existing cron process
59 (actually you can run your existing cron if you want, but why?)
60 build new crontabs using /usr/lib/{crontab,crontab.local}
61 (either put them all in "root"'s crontab, or divide it up
62 and rip out all the 'su' commands, collapse the lengthy
63 lists into ranges with steps -- basically, this step is
64 as much work as you want to make it)
65 start up the new cron
66 (must be done as root)
67 watch it. test it with 'crontab -r' and watch the daemon track your
68 changes.
69 if you like it, change your /etc/{rc,rc.local} to use it instead of
70 the old one.
71
72Id: README,v 1.6 2004/01/23 19:03:32 vixie Exp
73