Welcome to echo-server!  Here's what I know.
  > Head to /ws for interactive websocket echo!

-> My hostname is: 91effe566693

-> Requesting IP: 54.227.97.219:38174

-> 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
  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
172.17.0.8	91effe566693



-> And that's the way it is 2021-12-01 13:38:06.600707543 +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