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Permissions ( to avoid unwanted things )
Post 302277514 by spiriad on Friday 16th of January 2009 02:51:42 PM
01-16-2009
Permissions ( to avoid unwanted things )
I want to make an automated system to compile & run the source codes from different persons and to tell if the output is the same with the standard one(wich is given by me). Ok, this is quite simple, but the tricky part is,how do I avoid the "bad intentions" that may result from running those compiled sources.(Eg.: a program that should return the sum of two numbers, is designed to halt the sysyem 
).Generaly speaking, how do I prevent those programms do things like: network accesing, creating to many child processes (causing a DOS), generating to much output (thus the system remains out of space), using to much memory, calling system functions, etc. How to protect my system from this kind of (posible) abuses ? (I mention that the sources submitted are , for now, c++ sources, but should work for other languages too).
Thanks, Adrian
).Generaly speaking, how do I prevent those programms do things like: network accesing, creating to many child processes (causing a DOS), generating to much output (thus the system remains out of space), using to much memory, calling system functions, etc. How to protect my system from this kind of (posible) abuses ? (I mention that the sources submitted are , for now, c++ sources, but should work for other languages too).Thanks, Adrian
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LEARN ABOUT SUNOS
uucheck
uucheck(1M) System Administration Commands uucheck(1M) NAME
uucheck - check the uucp directories and permissions file SYNOPSIS
/usr/lib/uucp/uucheck [-v] [-x debug-level] DESCRIPTION
uucheck checks for the presence of the uucp system required files and directories. uucheck also does error checking of the Permissions file (/etc/uucp/Permissions). uucheck is executed during package installation. uucheck can only be used by the super-user or uucp. OPTIONS
The following options are supported: -v Give a detailed (verbose) explanation of how the uucp programs will interpret the Permissions file. -x debug-level Produce debugging output on the standard output. debug-level is a number from 0 to 9. Higher numbers give more detailed debugging information. FILES
/etc/uucp/Devices /etc/uucp/Limits /etc/uucp/Permissions /etc/uucp/Systems /var/spool/locks/* /var/spool/uucp/* /var/spool/uucppublic/* ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWbnuu | +-----------------------------+-----------------------------+ SEE ALSO
uucp(1C), uustat(1C), uux(1C), uucico(1M), uusched(1M), attributes(5) BUGS
The program does not check file/directory modes or some errors in the Permissions file such as duplicate login or machine name. SunOS 5.10 18 May 1993 uucheck(1M)