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AUTHOR: Leslie Polzer <leslie.polzer@gmx.net> |
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DATE: 2003-09-14 |
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LICENSE: GNU Free Documentation License Version 1.2 |
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SYNOPSIS: Fixing, compiling and installing dcron. |
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DESCRIPTION: |
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This guide documents how to fix, compile and install dcron, a light-weight |
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and stable cron for UNIX systems without bells and whistles. |
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PREREQUISITES: |
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None. |
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HINT: |
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Contents |
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-------- |
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1 Why use dcron when there's fcron? |
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2 Preparing the files |
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3 Compiling |
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4 Post-Install |
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5 Frontends |
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1 Why use dcron when there's fcron? |
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----------------------------------- |
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- dcron is SIMPLE: |
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dcron just gives you two binaries, crond and crontab, and consists |
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only of a few source files. |
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- dcron is SMALL: |
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binaries (i386-elf) are only about 25k |
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- dcron is MATURE: |
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it is many distributions' default cron and in use since ~1994. |
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- dcron is SECURE: |
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that's the consequence of being simple and mature. |
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- dcron WORKS: |
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fcron only worked for root on my box, no matter how hard I tried. |
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2 Preparing the files |
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--------------------- |
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Download dcron 2.3.3 here: |
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http://www.ibiblio.org/pub/Linux/system/daemons/cron/dcron-2.3.3.tar.gz |
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You will also need this patch I made: |
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http://www.fmi.uni-passau.de/~polzer/patches/dcron-2.3.3.patch |
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Unpack the tarball, put the patch into the resulting folder and cd into it. |
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3 Compiling |
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----------- |
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Apply the patch: |
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patch < dcron-2.3.3.patch |
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Now you can do the actual compile and install: |
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make CC="gcc $CFLAGS" |
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make install |
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Last line as superuser. |
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4 Post-Install |
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-------------- |
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Start the cron daemon from your bootscripts. |
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dcron can only log to STDOUT so add a I/O redirect: |
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/usr/bin/crond -l8 >> /var/log/cron.log 2>&1 |
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'8' is the loglevel. |
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If you want to allow every user to use cron, you're fine now. |
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If you want to restrict access to cron, do: |
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groupadd cron |
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chown root.cron /usr/bin/crontab |
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chmod 4750 /usr/bin/crontab |
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Now add every user that is allowed to use cron to the new group 'cron'. |
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5 Frontends |
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----------- |
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If you want a nice GTK frontend to cron (hate to remember those field orders!), |
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look out for 'gcrontab'. There is also a frontend for GNOME and maybe one for |
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the console. |
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CHANGELOG: |
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[2003-09-14] |
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* Initial release |
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