每個AWS的EC2 instance都會有一個Public IP address,不過這個Public IP address會隨著你重新啟動你的instance而更改,也就是說那個Public IP address是DHCP自動assign的,所以如果你要在EC2裡host你的伺服器,好比如網頁,那你就必須申請一個Elastic IP address,這個IP address是不會隨著你重新啟動instance而改變,要注意的是這個Elastic IP address是必須要associate給你的一個instance,如果你沒有associate你的instance的話,那麼Amazon就會以小時計算來跟你算錢,畢竟IPv4已經是很珍貴了.
Deals: Apple AirPods dip to $79, M3 iMac 24-inch drops to $1,149 at Amazon
-
Apple's earbuds are $50 off and the current M3 iMac is $150 off at Amazon
today, just in time for Mother's Day gift-giving.
[image: Apple AirPods 2 in its ...
7 小時前