I know how to display notice of a computer’s ownership, to warn against unauthorized access, under Linux gnome desktop. How do I display similar message under Apple Mac OS X to remind authorized users of their consent to monitoring?
The default algorithm for storing password hashes in /etc/shadow is MD5. I was told to use SHA-512 hashing algorithm. How do I set password hashing using the SHA-256 and SHA-512 under CentOS or Redhat Enterprise Linux 5.4?
I like the way Ubuntu Linux works – all people in admin groups should able to run all commands after running it via sudo “command-name”. How do I setup sudo under CentOS or Red Hat Enterprise Linux to allow all members of the ‘admin’ group to run all commands?