Để làm cho nó có thể nhìn thấy một lần nữa, khởi động Terminal và chflags loại nohidden ~ / sau bằng cách trả bạn không thể đăng nhập vào tài khoản của bạn ở tất cả sau khi cập nhật Leopard, một trong những thủ phạm tiềm năng là một mật khẩu tài khoản với hơn tám ký tự ban đầu được tạo ra khi sử dụng OS X | INSIDE LEOPARD CONTROL GUESTS REMOTE COMPUTERS AND INTRUDERS Leopard also offers plenty of options for controlling who connects to your Mac and how GUEST ACCOUNTS The Accounts pane in Leopard s System Preferences has also received some fine-tuning. Most notable is the new guest account. When enabled this account lets someone use your Mac temporarily without giving him or her access to your own account or going through the hassle of setting up a fresh account. A guest account doesn t require a password and doesn t have administrator access. Once the guest user logs out all data and settings in that account s Home folder are deleted the account is wiped clean for the next guest. SCREEN SHARING It s late on a weeknight and your cousin calls you with a desperate plea for tech support. With the Screen Sharing feature in the Sharing preference pane you can access your cousin s Mac without a personal visit. Screen Sharing lets other computers on a network or on the Internet access and control a Mac using VNC virtual network computing . Although not new to Leopard this feature used to be hidden away in the Access Privileges tab of Apple Remote Desktop and as a result couldn t be enabled unless Apple Remote Desktop was turned on. In Leopard Screen Sharing gets its own service listing. FILE SHARING You ve always been able to access files on another Mac over a network or even over the Internet. But with previous versions of Mac OS X it wasn t easy to decide which files and folders were accessible. In Leopard you can now easily share specific folders and volumes on your Mac with other computers by simply adding them to the Shared Folders list and then choosing your sharing options you can even control access to each share on an account-by-account basis for instructions see Sharing Files and Folders in the Access Your Mac from Afar chapter . SIMPLIFIED FIREWALL OS X sfirewall settings which are now located in the Security preference pane have changed considerably since Tiger. .
