April 2013
Beginner to intermediate
368 pages
6h 45m
Chinese
Content preview from VMWARE錦囊妙計第二版
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第六章
圖 6-2 進階啟動選項
進入編輯模式後，移到行列末端，加入
single
（圖 6-3），這告知伺服器啟動到單一使
用者模式，並允許您更改
root
密碼。按下 Enter 回到前一個選單，用反白列啟動
kernel
開頭的行列選項，按
b
啟動單一使用者模式。
圖 6-3 加入單一使用者模式到啟動列
系統將被啟動於單一使用者模式，您會看到一個命令提示字元，您可以輸入
passwd
命
令去更改
root
密碼。
密碼修改完畢後，使用
reboot
命令重啟電腦到原來模式，這時候就可以使用新的密碼了。
6.8 停用 root 控制台直接登入
問題
僅適用於 ESXi 3.5/4.x — 遠端使用者可以透過控制台以
root
身分登入，不過您希望這種
情況不要出現以確保更高的安全性。
214
一般安全性（General Security）
|
225
解決方案
編輯組態配置以避免直接使用
root
登入，就算是從控制台也一樣。
討論
預設的情況下，遠端使用者無法使用
root
身分登入到 ESX 伺服器，不過它可以用
root
身分登入到控制台並直接連結到伺服器，如果您想進一步鎖定您的 ESX 伺服器，您可
以停用直接使用
root
登入控制台的能力。您給予
root
權限的使用者仍然可以使用
sudo
命令變成
root
，不過您可以使用在訣竅 6.4 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.