Permissions
Posted on September 18th, 2008
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Something we haven't touched on yet is permissions in Ubuntu. The concept of permissions is highly important to how Linux works.
As you may know, Linux is a clone of the Unix operating system. Unix was originally designed to be used on huge systems which might have hundreds or even thousands of users, such as in universities, and it was therefore important to establish who was entitled to do what. The concept of groups therefore came about. By creating groups, and making individual users members of these groups, system administrators could set what users could do quickly and easily.
For example, refer back to the VirtualBox install article a while back and you'll notice that in order to use VirtualBox, a user needs to be a member of a group called "vboxusers". By adding a user name "fred"to this group, this shows that the administrator has given permission for the user fred to use VirtualBox. Now, to a certain extent this is a little redundant on...
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As you may know, Linux is a clone of the Unix operating system. Unix was originally designed to be used on huge systems which might have hundreds or even thousands of users, such as in universities, and it was therefore important to establish who was entitled to do what. The concept of groups therefore came about. By creating groups, and making individual users members of these groups, system administrators could set what users could do quickly and easily.
For example, refer back to the VirtualBox install article a while back and you'll notice that in order to use VirtualBox, a user needs to be a member of a group called "vboxusers". By adding a user name "fred"to this group, this shows that the administrator has given permission for the user fred to use VirtualBox. Now, to a certain extent this is a little redundant on...
[Read more →]
SOURCE: http://easierbuntu.blogspot.com/
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