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Sys Admin and The Perl
Journal CD-ROM version 12.0
Version 12.0 delivers every issue of Sys Admin from 1992 through 2006 and every
issue of The Perl Journal from 1996-2002 in one convenient CD-ROM!
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Rules for Safe SUID Programming
- Do not use SUID shell scripts.
- Never, ever, under any circumstances, use SUID C-shell scripts.
- Always manually set your IFS.
- Always manually set your PATH and use absolute path names.
- Understand how the programs you call work, and how they handle arguments.
- Do not use temporary files. If you must, don't put them in a publicly writable area.
- Distrust and check all user input and eliminate dangers such as meta-characters.
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