tailieunhanh - Linux smart homes for dummies - part 4

Linux là một hệ điều hành mã nguồn mở (open-source OS) chạy trên hầu hết các kiến trúc vi xử lý, bao gồm dòng vi xử lý ARM. Linux được hỗ trợ bởi một cộng đồng mã nguồn mở (GNU), chính điều này làm cho Linux rất linh hoạt và phát triển rất nhanh với nhiều tính năng không thua kém các hệ điều hành khác hiện nay | 78 Part II Connecting Multiple Computers without the Wires Encryption type default is Disabled you should really enable this This is currently a secure type of encryption but it does require more work on your PC to properly set it up. And for my favorite subject encryption type I recommend using at least the minimum of WPA-PSK. Earlier I recommend Disabled but that was just for the initial setup. After you have your setup working I recommend you change this to Enabled. The extra work is worth the extra peace of mind it gives you. Passkey or shared key Your choices are WPA Pre-Shared key WPA RADIUS RADIUS and WEP. RADIUS is a server that you ll need to install. It s one of the available packages. I don t cover that in this book so don t use the RADIUS settings. When you select your key make sure it s a decent key that can t be easily guessed. Mine is . . . I m not telling If you ve disabled the encryption type you can leave this blank. If you re using a JavaScript-blocking application such as NoScript in Firefox make sure that you enable it for this site http . Without it you won t be able to do much with OpenWrt s Web interface because it relies on Javascript. Upgrading Your WAP to OpenWrt These instructions assume you re using the original Linksys firmware for your WAP. If you re using another third-party firmware the instructions will be different and I recommend you visit the third party s Web site for upgrade instructions. If you already have your WAP configured make sure you copy the important information such as IP addresses masks DNS hostname ESSID channel number encryption type and key. You can use the worksheet to write down your existing information. You need to reset the WAP to its factory defaults otherwise very odd problems can occur. Now that you ve written down the important information and reset the WAP to factory defaults it s time to start the upgrade but first read the following points that can save you trouble while you perform the .