disable su


 
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# 1  
Old 06-14-2006
disable su

i have this unix version "unix v/386" and i want to disable su
kindly help me
# 2  
Old 06-14-2006
You can simply removed the execute attribute from su preventing anyone from running it. However, may I suggest limiting it usage?

For example, on my Solaris 8 servers, all system administrators have a primary group of sysadmin (gid 14). The permissions of su have been changed such that only members of that group can execute su. Historically, the wheel account has been used to limit su(1M) access but the sysadmin group is not used by any other Solaris package. It also makes sense.

Code:
    # cd /usr/bin
    # ls -la su
    -r-sr-xr-x   1 root     sys        21192 Jun 15 14:42 su
    # /usr/bin/chgrp sysadmin su
    # /usr/bin/chmod 04750 su
    # ls -la su
    -rwsr-x---   1 root     sysadmin   21192 Jun 15 14:42 su
    # cd /sbin
    # ls -la su.static
    -r-xr-xr-x   1 root     sys       524372 Jun 15 14:42 su.static
    # /usr/bin/chgrp sysadmin su.static
    # /usr/bin/chmod 04750 su.static
    # ls -la su.static
    -rwsr-x---   1 root     sysadmin  524372 Jun 15 14:42 su.static

With a few customizations, I'm sure it will work for your OS as well.
# 3  
Old 06-15-2006
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