It's easy to make the assumption that if something is in the cloud, you don't have to worry about managing it. This isn't true. Although many cloud providers allow you to have a portal view of their own service levels, it's your responsibility to keep track of any service you have put into either a public or a private cloud. Because many companies inevitably have a hybrid environment, you need to manage your overall service level.
The setuid permission on an executable file means that the command will run as the user owning the file, not as the user that ran the command. One example is the passwd command: [student@desktopX ~]$ ls -l /usr/bin/passwd -rw s r-xr-x. 1 root root 35504 Jul 16 2010 /usr/bin/passwd In a long listing, you can spot the setuid permissions by a lowercase s where you would normally expect the x (owner execute permissions) to be. If the owner does not have execute permissions, this will be replaced by an uppercase S . The special permission setgid on a directory means that files created in the directory will inherit their group ownership from the directory, rather than inheriting it from the creating user. This is commonly used on group collaborative directories to automatically change a file from the default private group to the shared group, or if files in a directory should be...
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