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Full Discussion: MAC at @reboot, like some cellphone
Operating Systems BSD MAC at @reboot, like some cellphone Post 302989542 by 1in10 on Saturday 14th of January 2017 05:04:22 AM
Old 01-14-2017
MAC at @reboot, like some cellphone
I want to change my MAC at reboot, so making it a cron job like the following in BSD.
Can I do this in the jail for the user, setting it as a command or should it be a script?

I would set it as a command

Code:
openssl rand -hex 6 | sed 's/\(..)/\1:/g; s/.$//'

just to test it, it works.


To make things easier, blinded by the light, I just took the macchanger script from my linux distro and set it already unpacked in the folder of
Code:
/home/name of the user/sbin/

setting the flags and doing it at or @reboot.

It works fine with just the command line!!!!


Code:
@reboot  usernamesomebody    openssl rand -hex 6 | sed 's/\(..)/\1:/g; s/.$//'

I am asking this, because the BSD handbook tells me to try it first as a homebrew script in the really
special environment, that is giving me a headache like the following

Code:
env -i SHELL=/bin/sh PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin HOME=

And my second question is, would it be better to set it in the system crontab
Code:
/etc/crontab

or just user crontab?

So if someone can help me out, thanks in advance!!!
Last edited by 1in10; 01-18-2017 at 05:53 AM.. Reason: SOLVED FINALLY
 

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LEARN ABOUT SUNOS

reboot

reboot(3C)																reboot(3C)

NAME

       reboot - reboot system or halt processor

SYNOPSIS

       #include <sys/reboot.h>

       int reboot(int howto, char *bootargs);

       The  reboot()  function	reboots  the  system.	The howto argument specifies the behavior of the system while rebooting and is a mask con-
       structed by a bitwise-inclusive-OR of flags from the following list:

       RB_AUTOBOOT     The machine is rebooted from the root filesystem on the default boot device. This is the default behavior. See boot(1M) and
		       kernel(1M).

       RB_HALT	       The processor is simply halted; no reboot takes place. This option should be used with caution.

       RB_ASKNAME      Interpreted by the bootstrap program and kernel, causing the user to be asked for pathnames during the bootstrap.

       RB_DUMP	       The  system  is	forced	to panic immediately without any further processing and a crash dump is written to the dump device
		       (see dumpadm(1M)) before rebooting.

       Any other howto argument causes the kernel file to boot.

       The interpretation of the bootargs argument is platform-dependent.

       Upon successful completion, reboot() never returns.  Otherwise, -1 is returned and errno is set to indicate the error.

       The reboot() function will fail if:

       EPERM	The {PRIV_SYS_CONFIG} privilege is not asserted in the effective set of the calling process.

       intro(1M), boot(1M), dumpadm(1M), halt(1M), init(1M), kernel(1M), reboot(1M), uadmin(2)

								    22 Mar 2004 							reboot(3C)
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