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Full Discussion: How to hide command line parameters?
Top Forums UNIX for Advanced & Expert Users How to hide command line parameters? Post 302347033 by Corona688 on Monday 24th of August 2009 05:54:06 PM
Old 08-24-2009
One way I've seen it done is to save the parameters in variables, export them, then immediately exec a different script. The new script will obtain values through environment variables and not display them in its commandline, while the program that called it no longer exists, having been replaced with whatever it exec'd. This makes it difficult -- though not impossible -- to catch in the act.

Another way to avoid parameters being visible is to not have them visible in the first place, transferring them to scripts through methods like pipes and so forth.
 

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LEARN ABOUT REDHAT

ipfwadm-wrapper

IPFWADM-WRAPPER(8)														IPFWADM-WRAPPER(8)

NAME

       ipfwadm-wrapper - IP firewall administration

SYNOPSIS

       ipfwadm-wrapper -A command parameters [options]
       ipfwadm-wrapper -I command parameters [options]
       ipfwadm-wrapper -O command parameters [options]
       ipfwadm-wrapper -F command parameters [options]
       ipfwadm-wrapper -M [ -l | -s ] [options]

DESCRIPTION

       Ipfwadm-wrapper	emulates  the  behaviour  of  ipfwadm.	You can use this wrapper to use your old ipfwadm firewall rules with ipchains. See
       ipfwadm(8) for more details.

       If the kernel does not support ipchains (eg. a 2.0 kernel), and the file /sbin/ipfwadm.real exists and is executable, then it will be  exe-
       cuted  with  the  arguments  given  to  ipfwadm-wrapper.   This allows simple dual-booting of 2.2 and 2.0 kernels with the same firewalling
       scripts: simply move ipfwadm to ipfwadm.real, and ipfwadm-wrapper to ipfwadm.

SEE ALSO

       ipfwadm(8), ipchains(8)

BUGS

       The script isn't clever at parsing command line arguments.  You must use separate arguments, rather than run them together.   For  example,
       `ipfwadm -Mle' becomes `ipfwadm-wrapper -M -l -e'.

       Fragment accounting rules are not translated correctly; they will account packets with source port 65535.

       Due to new kernel restrictions, you must be root even to list rules for 2.2 kernels.

       If /usr is mounted from NFS, you will not be able to use ipfwadm-wrapper before /usr is mounted.

AUTHOR

       Paul ``Rusty'' Russell <ipchains@rustcorp.com>

								 February 8, 1998						IPFWADM-WRAPPER(8)
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