Apache HTTP Server & WS (websockets) Apache HTTP Server, WS, websockets, Apache, HTTP Server, linux, centos, httpd, js, chat room, 聊天室, IM
Apache HTTP Server Version 2.4
https://httpd.apache.org/docs/2.4/
https://httpd.apache.org/docs/2.4/mod/mod_proxy_wstunnel.html
websockets
https://caniuse.com/#feat=websockets
demos
Linux & Apache http server version
CentOS
httpd -v
$ httpd -v
# Server version: Apache/2.2.15 (Unix)
# Server built: Jul 18 2016 15:24:00
https://www.liquidweb.com/kb/how-to-check-the-version-of-apache/
apachectl -V
$ apachectl -V
# Server version: Apache/2.2.15 (Unix)
# Server built: Jul 18 2016 15:24:00
# Server's Module Magic Number: 20051115:25
# Server loaded: APR 1.3.9, APR-Util 1.3.9
# Compiled using: APR 1.3.9, APR-Util 1.3.9
# Architecture: 64-bit
https://stackoverflow.com/a/289589/5934465
https://stackoverflow.com/questions/289586/version-of-apache-installed-on-a-debian-machine
OpenResty
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