Slide 103
Slide 103 text
關於 hostname
•合法字元:
小
寫 a-z 數字 0-9 與連字號 -
•63 個字元
•不要
用大
寫,不要
用
底線 _
1 to 63 characters long and the entire hostname, including the dots, can be at most 253 characters long. Valid
characters for hostnames are ASCII(7) letters from a to z, the digits from 0 to 9, and the hyphen (−). A hostname
may not start with a hyphen.
https://www.linuxcampus.net/documentation/man-html/htmlman7/hostname.7.html