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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 OSF1

reboot

reboot(8)						      System Manager's Manual							 reboot(8)

NAME

       reboot - Restarts the machine

SYNOPSIS

       /usr/sbin/reboot [-dlnq]

DESCRIPTION

       When  the  system  is running and multiple users are logged in, use the shutdown -r command to perform a reboot operation.  If no users are
       logged in, use the reboot command.

       The reboot command normally stops all running processes, syncs the disks, logs the reboot,  and	writes	a  shutdown  entry  in	the  login
       accounting file, /var/adm/wtmp.

       The  reboot command uses the sync call to synchronize the disks, and to perform other shutdown activities such as resynchronizing the hard-
       ware time-of-day clock.	After these activities, the system reboots.  By default, the system starts and the file systems are  automatically
       checked.  If the start-up activities are successful, the system comes up in the default run-level.

       You must have root privileges to use this command.  Using the -n flag can result in file system damage.

FLAGS

       Generates  a  crash  dump  of the system before halting it.  Can be used with any of the other flags.  Does not log the reboot using syslog
       Does not sync the disks or log the reboot using syslog Performs a quick reboot without first shutting down running processes; does not  log
       the reboot using syslog

EXAMPLES

       To  enable  the	default reboot action, enter: reboot This command causes the system to stop all running processes, sync the disks, log the
       shutdown, and perform other routine shutdown and reboot activities.  To shut down the system without logging the reboot, enter:	reboot	-l
       This  command  shuts  down  the	system and performs all shutdown and reboot activities, except logging the shutdown.  To reboot the system
       abruptly, enter: reboot -q This command reboots the system abruptly without shutting down running processes.

FILES

       Specifies the command path Specifies the login accounting file Specifies the path of the syslog daemon

RELATED INFORMATION

       Commands:  fsck(8), halt(8), init(8), savecore(8) shutdown(8), syslogd(8)

       Functions:  reboot(2), sync(2), syslog(3) delim off

																	 reboot(8)
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