System calls aren't handled like regular function calls. It takes special code to make the transition from user space to kernel space, basically a bit of inline assembly code injected into your program at the call site. The kernel side code that "catches" the system call is also low-level stuff you probably don't need to understand deeply, at least at first.
An interesting question that boils down to how both operating systems handle file access. Read on.
The basic idea is that a file containing n bytes uses n bytes of disk space, plus a bit for some control information: the file's metadata (permissions, timestamps, etc.), and a bit of overhead for the information that the system needs to find where the file is stored. However there are many complications.
For the purposes of this article, I’ll assume a basic knowledge of what DHCP does and how to configure a DHCP server, but before we talk about multiple DHCP servers on the same network, let’s go over how clients receive IP addresses from DHCP. I may come back to explain DHCP at a later date. However, for now, click through to read more.
Group Policy is a tool that is available to administrators that are running a Windows 2000 or later Active Directory Domain. It allows for centralized management of settings on client computers and servers joined to the domain as well as providing a rudimentary way to distribute software.
Settings are grouped into objects called Group Policy Objects (GPOs). GPOs are linked to an Active Directory organizational unit (OU) and can be applied to users and computers. GPOs cannot be applied to groups directly, though you can use security filtering or item-level targeting to filter policy application based on group membership.
There are several things you need to keep in mind when diciding on aliasing, scripting, or writing functions. Click the link to read more...
You got yourself a position, or made a decision, or run a public server. Great! Hope this checklist helps, I certaintly haven't thought of every one of these things when I was starting out.
When something goes wrong, it's not a bad idea to already have a method ready that you will use to figure out what's happening and what you'll need to do to fix it.
First, remember that a directory is just a list of names and references. Click the jump to get a look at the way permissions bits work in Linux.