Name resolution APIs and libraries SHOULD recognize localhost
names as special and SHOULD always return the IP loopback address
for address queries and negative responses for all other query
types.
[5] MySQL :: MySQL 5.7 Reference Manual :: 4.2.2 Connecting to the MySQL Server
( 版)
https://dev.mysql.com/doc/refman/5.7/en/connecting.html
On Unix, MySQL programs treat the host name localhost specially, in a way that is likely different from what you expect compared to other network-based programs. For connections to localhost, MySQL programs attempt to connect to the local server by using a Unix socket file. This occurs even if a --port or -P option is given to specify a port number. To ensure that the client makes a TCP/IP connection to the local server, use --host or -h to specify a host name value of 127.0.0.1, or the IP address or name of the local server. You can also specify the connection protocol explicitly, even for localhost, by using the --protocol=TCP option.
[6][secure-contexts] `*.localhost` + DNS
( (Mike West著, ))
https://lists.w3.org/Archives/Public/public-webappsec/2016May/0006.html
[7] Support | Dell US (Dell US著, ) http://www.dell.com/support/home/us/en/19/Products/?IsTag=False&IsInvalidSelection=False
During the discovery step, if the sender discovers the endpoint is localhost or a loopback IP address (127.0.0.0/8), it should not send the Webmention to that endpoint.
[18] Connecting to the Qlik Engine API ‒ Qlik Sense
()
http://help.qlik.com/en-US/sense-developer/3.2/Subsystems/EngineAPI/Content/GettingStarted/connecting-to-engine-api.htm
After you launch Qlik Sense Desktop and log in, you can connect to the Qlik Engine API using the following URI:
ws://localhost:4848/app/
[19] Cover localhost names for searchlists.
(mikewest著, )
https://github.com/mikewest/internetdrafts/commit/d7084ebf36cce8cfd99bb1df3b33aa7957c959a7
[20][DNSOP] DNSOP Call for Adoption - draft-west-let-localhost-be-localhost
()
https://www.ietf.org/mail-archive/web/dnsop/current/msg20963.html
[21] Networking features in Docker for Mac | Docker Documentation
()
https://docs.docker.com/docker-for-mac/networking/#use-cases-and-workarounds
I WANT TO CONNECT FROM A CONTAINER TO A SERVICE ON THE HOST
The Mac has a changing IP address (or none if you have no network access). From 17.06 onwards our recommendation is to connect to the special Mac-only DNS name docker.for.mac.localhost which will resolve to the internal IP address used by the host.
[22] Microsoft Edge でローカルホストにアクセスできない問題を解決する - Browser
()
http://browser.hatenablog.com/entry/2016/01/29/190856
初期状態ではアドレスバーに http://localhost や IP を入力してもローカルホストへのアクセスはできません。
required string, in query URL to which the user will be redirected after authentication. Must be within the callback domain specified by the application. localhost and 127.0.0.1 are white-listed.