# MISC

## DNS

domain name service

mapping domain name to ip

![](https://4291590905-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lq83PzjSGagPjnfzfcH%2F-Lq83T8SUrYcfEov9Fq7%2F-Lq83V1UEUqyrfQ8p9j5%2Fdns.png?generation=1569962722270085\&alt=media)

## CDN

Content Delivery Network

![](https://4291590905-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lq83PzjSGagPjnfzfcH%2F-Lq83T8SUrYcfEov9Fq7%2F-Lq83V1WNJVgr1gKY39p%2Fcdn.png?generation=1569962722489378\&alt=media)
