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译文慢慢来。以下是原文。

How To Change the iPhone’s Root Passwordby PATRICKJ on NOVEMBER 5, 2009 · COMMENTS (47)
in IPHONE JAILBREAK, IPHONE TIPS AND TRICKS

This week we’ve seen stories all around the web about a Dutch hacker’s demo of how easy it is to gain access to an iPhone when it is jailbroken, running the SSH service, and has not had its default admin-level passwords changed.
These stories were a great reminder that we should all make a habit of changing the default passwords for the iPhone’s two primary admin accounts (usernames mobile and root) – as once somebody gains root level access to an iPhone, all sorts of bad things can happen.
Read on for some easy instructions on how to change your default passwords on the iPhone …

How To Change The iPhone’s Default Admin Account Passwords:
*** These instructions assume you are running iPhone OS 3.0 or above on your device – other firmware versions may vary in their default passwords. You also, of course, need to be jailbroken, and running the SSH service if you wish to use one of the methods that connect to the iPhone via a PC to make the changes.
You can use applications on the iPhone itself or on your PC to make these password changes. Please note – you only need to use one of these methods, not all three. Here are three walk-throughs for three common apps on iPhone, Mac, and PC:
On the iPhone:
The app to use on the iPhone is called MobileTerminal and it’s available for free in the Cydia store.
Once you have MobileTerminal installed, launch it and you should see a prompt saying this or similar:
iPhoneName: ~ Mobile$

* At that prompt, type: passwd
* You’ll be prompted for the ‘old’ (current) password for the mobile user. Enter this as the old password: alpine
* You’ll then be prompted to enter the new password – so just type in your desired new password. Use good password principles if possible (long and stong). You will not see characters appearing on the screen as you type – that’s normal, not a concern.
* You’ll then be prompted to re-enter the new password. Do that.
* You should then be returned to the Mobile$ prompt that you started on when opening the MobileTerminal app. There’s no success message to say the password was changed – but if you’re returned to the prompt and do not get an error, the change was successful. And you’re done with change for the mobile account.
* The second primary admin account for the iPhone is called root – so now you need to change that as well.
* Type this to switch to the root user: login root
* You’ll be prompted for the root user’s current password. Enter this: alpine
* Type this to start the password change routine again: passwd
* Enter the old password for root (it is ‘alpine’, same as for the mobile user) and enter your desired new password twice, just as you did for the mobile account
Done.

On a Mac:

* Find your iPhone’s IP address so that you know where you need to connect to. To do this, go to the Settings app > WiFi > tap on the blue arrow to the right-hand side of the WiFi network you’re currently on (the one with a check next to it) > make a note of the IP Address entry listed there.
* On many home WiFi networks the address will be something like 192.168.1.x – so we’ll use that in the command instructions below – remember to use your own IP address when doing this though.
* Use the Terminal app or your favorite replacement for it (I use iTerm) and open a new window
* Type this to connect as root to your iPhone: ssh root@192.168.1.x
* You’ll be prompted for the root user’s current password. Enter this: alpine
* Type this to start on changing the password for the root user: passwd
* Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
* Once you have changed the root user’s password, type this to switch to the mobile user: login mobile
* Type this to start the password change for this user: passwd
* Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
* Type this to end your remote session with the iPhone: exit
Done.
On a Windows PC

* Find your iPhone’s IP address so that you know where you need to connect to. To do this, go to the Settings app > WiFi > tap on the blue arrow to the right-hand side of the WiFi network you’re currently on (the one with a check next to it) > make a note of the IP Address entry listed there.
* On many home WiFi networks the address will be something like 192.168.1.x – so we’ll use that in the command instructions below – remember to use your own IP address when doing this though.
* Use Putty (free to download on the web) or your preferred app to make an ssh connection to the iPhone
* Use 192.168.1.x (your iPhone’s IP address) as the host name or server name to connect to. Choose ssh as the connection method, SFTP as the protocol, and 22 as the port number.
* Use the username root to connect with and alpine as its password
* When you have connected and have a terminal window open type this to start your password change for the root user: passwd
* Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
* Once you have changed the root user’s password, type this to switch to the mobile user: login mobile
* Type this to start the password change for this user: passwd
* Type the old password (alpine) and new password (twice) as per the instructions above for the iPhone.
* Type this to end your remote session with the iPhone: exit
* Done.
As you can see, these are easy and fast steps to take. If you’re running your iPhone jailbroken and using the SSH service it’s very worthwhile to make these changes to the default passwords. Even if you do not use SSH, keep in mind that other core iPhone services may have security holes and exploits in future – so the password change is a good idea all the way round.
If you are using SSH, another good practice is to keep the service always toggled off except when you are using it for file transfers or similar activities, and to get in the habit of shutting it off as soon as you’re finished working with it. The easiest way to do this is to use the excellent SBSettings app, to have a quick one-tap toggle on/off for SSH and other key services.

偷懒，直接贴过来。希望stanley不要介意！

如何清除硬碟並安裝全新的10.6 Snow Leopard | MacUknow: "
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路徑進階分類教學 / 如何清除硬碟並安裝全新的10.6 Snow Leopard

如何清除硬碟並安裝全新的10.6 Snow Leopard

By stanley - Posted on 03 九月 2009

蘋果這次推出NT1090元的升級版 10.6 Snow Leopard，事實上就是零售版本的10.6，換句換說，也就是可以讓你自由地灌在任何Intel核心的Mac上，而不會去偵測你的硬碟裡是否有前一版的作業系統。

因此，以下這篇文章，就是要和你分享如何’清除硬碟’，然後乾淨地安裝10.6。

安裝前建議

在升級作業系統之前，強烈建議你參考以下的文章：

 至於Boot Camp的Windows部分，只要清除磁碟時，不要選到Boot Camp磁區，應該就不會有問題，不用擔心。

開始安裝10.6 Snow Leopard

準備好開始安裝新的作業系統後，您需要的就是10.6 Snow Leopard光碟，這次的外盒已經沒有X字樣，而是目前瀕臨絕種的雪豹，以零售版才NT1090的價格，個人認為，買來收藏的價值高於10.5阿～

盒中的內容物不多，就是光碟片、說明書和Apple貼紙一張

開機之後，放入光碟後，按著鍵盤上的C鍵。或者，你也可以按住Option鍵，就會出現以下的選項，請選擇Mac OS X Install DVD

再來，用光碟開機後，先選定您要顯示的語言

清除你的磁碟

接著，點選上方的’工具程式’>>’磁碟工具程式’

點選你的硬碟之後，點選右邊的’分割’，選擇完你的分割區後，再點選下方的’選項’（如果你將來要用Boot Camp來灌Windows，請先選1個分割區。另外，如果你本來硬碟就有一個Mac磁區，一個Boot Camp磁區，你想要保留原本Boot Camp裡的windows，請選擇Mac磁區，然後點選右邊的’清除’即可，清除完並就可以結束磁碟工具程式。）

在選項的設定中，請選擇GUID磁碟分割區表格 。點選好之後，再點選套用。

分割完畢之後，點選左上方的磁碟工具程式>>結束磁碟工具程式。

自定安裝項目

接下來您可以點選下圖中的'自定'，有些內容可以不用安裝，這樣可以省下不"

(Via .)

shift＋alt＋音量调控键