在傳遞資料的過程中，總是不想要讓人家一眼就看明白你所傳遞的文字訊息。隱藏文字訊息的方式有很多種，如果沒有解碼還原的需求，只需進行雜湊(Hash)運算即可。但若有還原的需求，則可能要使用到某些著名的加密演算法，例如String Hider、DES、AES等等。只要加密與解密的兩方協調好要使用的加密方式以及密碼，就可以完成訊息的加密傳輸。Crypt Tool提供了圖形介面，讓使用者可以使用DES(64...

Which command could be used to see the kernel messages created from the boot time until now? A. initm B. initmessage C. initmsg D. inittab E. dmesg

GoldenDict是一款可以在Linux、Windows、macOS作業系統上使用的開放原始碼字典軟體，支援StarDict、MDict、DSL等常見的辭典格式，擴充性極高，使用者可以輕易地利用GoldenDict來打造屬於自己的語言辭典，甚至是百科全書。

vim文字編輯器是vi文字編輯器的強化版本，兩者都是運行在文字介面(CLI)上。vim支援多次復原、多窗格、程式碼語法高亮和滑鼠控制等多種功能，經常在Linux和macOS作業系統上被用來查看與編寫程式碼，尤其是透過SSH連線來操作系統的時候更為常用。由於vim是如此常用的文字編輯器，且就算在別台電腦上都有可能會使用SSH連回自己的主機使用vim來編輯文字檔案，以至於替vim設計出一個屬於自己的編...

A zone file on the DNS server has been updated. Which of the following commands will tell named to reload its zone files? (Please select TWO correct answers)

On a Debian based system, which command can be used to stop the apache2 init script from running at boot time once the real script has been removed from /etc/init.d/?

Which system files are updated as devices are mounted and unmount to provide information on the mounted devices and the options used? (Please specify TWO answers) A. /proc/dtab B. /etc/mtab C. /e...

What is the term for unmounting a filesystem, which cleans up all references to the filesystem, as soon as it is not in use any longer? A. soft B. strong C. forced D. lazy E. delayed

What is the purpose of udevmonitor? A. Listen to kernel events produced by a udev rule and print information to the console B. Monitors the /dev directory for new devices C. Monitors the udev process...

Which tool can be used to control the runtime behavior of udev? A. udev B. udevctl C. udevadm D. udevconfig E. udevclient