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Full Discussion: cron issue
Top Forums UNIX for Advanced & Expert Users cron issue Post 26946 by Kelam_Magnus on Monday 26th of August 2002 01:30:43 PM
Old 08-26-2002
/agree Auswipe full path is always best

I must reluctantly agree with Auswipe. Smilie hehehe

It is a good practice and good security to ALWAYS use the full path in any cron entry and in the scripts that you write.

The reason for this is, it is a very easy way for someone to replace any binary on your system with a trojan.

Always use full path AND always keep a backup copy of crontab for all users that have one especially cron.

Smilie
 

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bcron-update(8) 					      System Manager's Manual						   bcron-update(8)

NAME
bcron-update - Update system crontabs. SYNOPSIS
bcron-update path [ path ... ] DESCRIPTION
bcron-update polls the named files or directories periodically to see if there are any new, changed, or removed files. When it detects changes, it mirrors those changes into the crontab spool directory. bcron-update runs as root in order to be able to read system files that would potentially be unreadable otherwise. On Debian, if path is a directory, bcron-update skips files in this directory with names that do not solely consist of lower- and uppercase letters ('a'-'z', 'A'-'Z'), digits ('0'-'9'), underscores ('_'), and hyphens ('-'). EXAMPLES
To mirror modern vixie-cron's behavior, use: bcron-update /etc/crontab /etc/cron.d ENVIRONMENT
BCRON_SPOOL The spool directory for bcron. Defaults to /var/spool/cron. BCRON_USER After writing files and before moving them into their final location, bcron-update changes the ownership of the file to this user so that bcron-sched can read them. SEE ALSO
bcron-sched(8) DIAGNOSTICS
bcron-update outputs three different kinds of messages about actions it is taking. Rescanning /etc/cron.d The named directory has been modified, and will be scanned to determine what files have been added or deleted. -/etc/cron.d/oldfile The named file no longer exists and will be removed from the spool. +/etc/cron.d/newfile The named file was either created or modified since the last scan, and will be copied into the spool. AUTHOR
Bruce Guenter <bruceg@em.ca> bcron-update(8)
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