Tracking root signons in AIX

For AIX is there a way to track root signons and send an email when someone signs on as root ?  Thanks
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which way do the "suspects" reach your server? ssh? telnet? console?

In the very first place I'd suggest changing root's password immediately, to significantly reduce the number of persons who can login "legally".

Next I'd suggest denying remote logins for root, or even disabling telnet/rsh etc. as a whole.

So people are urged to use "su", whose use is tracked in /var/adm/sulog or maybe "ssh", where sshd can easily be configured to log all connection attempts.

Of course you can also setup auditing, to track root's (or all) logins.


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last| grep root
command gives you the status of root signon
and you can send mail command in root profile so that it send the mail on signon
regarding the mail in root's profile - of course you can do that.
I'd assume, however, that a malicious person disposing of root's password will not have any problems to circumvent this.
Anyway, you could add this to root's .profile
who am i | mailx -s "root login at $(/usr/bin/hostname)!"  dananddlo@domain.tld
dananddloAuthor Commented:
I am new to AIX.  I was told (by IBM) that root doesn't have a .profile file like other users. Where is this located? Thanks for your help!
OK, root doesn't have a .profile by default, but root is not forbidden to have one (in his home directory) either.
Anyway, we can use the system-wide initialization file /etc/profile as well, but since it's run for all users we need to check whether it's root who logs in.
So you could add to /etc/profile
[ $(id -u) -eq 0 ] && who am i | mailx -s "$(id -u -nr) login at $(hostname)!" dananddlo@domain.tld
Add the above somewhere near the end of /etc/profile and check it out.
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Unix OS

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