How to AGAIN ????

How do I act like my username / myself is not exist in the unix system? Because as I ask the question before, some user can make other people can't finger them, now I wanna know how to make myself act like not exist in the entire system.
i.e. no body can "finger" me, "last" me, etc.......
Because I saw one of the user can do this.
LVL 2
clo1Asked:
Who is Participating?
 
ahoffmannConnect With a Mentor Commented:
so you're not root ;-)
If you have no root access to the system, there is no way to hide yourself.
THERE IS NO WAY AROUND THIS.
0
 
clo1Author Commented:
Edited text of question
0
 
ahoffmannCommented:
Probably you can, but ist a huge work to do.
Just some example how someone else can see if you are on the system:

  1) ps -euf
  2) w
  3) who
  4) rwho
  5) last (or lastcom, lastcmd, whatever your OS supports)
  6) cat /etc/passwd; find / -uid xxx -ls|grep "`date +%b`"
  and much more ..

You either have to patch all these commands, or restrict other users to use them.
0
Cloud Class® Course: Certified Penetration Testing

This CPTE Certified Penetration Testing Engineer course covers everything you need to know about becoming a Certified Penetration Testing Engineer. Career Path: Professional roles include Ethical Hackers, Security Consultants, System Administrators, and Chief Security Officers.

 
clo1Author Commented:
but how do i do so, i want to know how to "invisible" in the entire system.
0
 
ahoffmannCommented:
chmod 550 /bin/ps
chmod 550 /bin/ls
chmod 550 /bin/find



But dis you realy want that other users canot use these programs?
0
 
clo1Author Commented:
my system do not allow me to do so !
0
 
braveheartCommented:
This question looks suspiciously like "When I have hacked into someone else's computer, how do I mke myself invisible".
0
 
ahoffmannCommented:
braveheart, lets hack them into UNIX, and they're always seen ;-)
Probably it's going worse if they get root access.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.