Welcome to echo-server! Here's what I know. > Head to /ws for interactive websocket echo! -> My hostname is: 91effe566693 -> Requesting IP: 35.172.230.154:49530 -> Request Headers | HTTP/1.1 GET / Host: dh.docklab.de:9991 Accept-Encoding: br,gzip Accept-Language: en-US,en;q=0.5 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Connection: Keep-Alive If-Modified-Since: Thu, 26 May 2022 06:09:35 GMT User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/) -> Response Headers | Content-Type: text/plain X-Real-Server: echo-server > Note that you may also see "Transfer-Encoding" and "Date"! -> My environment | ADD_HEADERS={"X-Real-Server": "echo-server"} HOME=/ HOSTNAME=91effe566693 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin PORT=8080 SSLPORT=8443 -> Contents of /etc/resolv.conf | # This file is managed by man:systemd-resolved(8). Do not edit. # # This is a dynamic resolv.conf file for connecting local clients directly to # all known uplink DNS servers. This file lists all configured search domains. # # Third party programs must not access this file directly, but only through the # symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way, # replace this symlink by a static file or a different symlink. # # See man:systemd-resolved.service(8) for details about the supported modes of # operation for /etc/resolv.conf. nameserver 194.95.66.241 nameserver 8.8.8.8 -> Contents of /etc/hosts | 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters 172.17.0.2 91effe566693 -> And that's the way it is 2023-02-03 04:50:16.329312818 +0000 UTC // Thanks for using echo-server, a project by Mario Loria (InAnimaTe). // https://github.com/inanimate/echo-server // https://hub.docker.com/r/inanimate/echo-server