My web domain is files.oracle.silentred.club
Backend ip is 184.108.40.206. This backend has 80 port for web page, and 6800 port for websocket service.
I enabled proxy for this domain in DNS configuration on Cloudflare.
# Just cannot establish TCP connection by domain telnet files.oracle.silentred.club 6800 Trying 220.127.116.11... ^C # Direct connection is ok. I think there is something wrong with the Cloudflare proxy. telnet 18.104.22.168 6800 Trying 22.214.171.124... Connected to 126.96.36.199. Escape character is '^]'. ^]quit telnet> quit Connection closed.