URL not accesible through http

[CarlosTejeiro]

Hi Team,

Just mention that http seems to be not available for URL http://trex-tgn.cisco.com
In my case docker build fails because http is not accesible, https works well

carlos@RMAMWM32011:~/TRexAppHosting$ docker build -t trexapp .
[+] Building 45.3s (8/10)
 => [internal] load build definition from Dockerfile                                                               0.0s
 => => transferring dockerfile: 600B                                                                               0.0s
 => [internal] load .dockerignore                                                                                  0.0s
 => => transferring context: 2B                                                                                    0.0s
 => [internal] load metadata for docker.io/library/ubuntu:16.04                                                    2.3s
 => [internal] load build context                                                                                  0.0s
 => => transferring context: 347B                                                                                  0.0s
 => [1/6] FROM docker.io/library/ubuntu:16.04@sha256:1f1a2d56de1d604801a9671f301190704c25d604a416f59e03c04f5c6ffe  0.0s
 => CACHED [2/6] RUN apt-get update                                                                                0.0s
 => CACHED [3/6] RUN apt-get -y install python              wget              bash              net-tools          0.0s
 => ERROR [4/6] RUN wget http://trex-tgn.cisco.com/trex/release/v2.56.tar.gz &&     tar -zxvf v2.56.tar.gz -C /   42.9s
------
 > [4/6] RUN wget http://trex-tgn.cisco.com/trex/release/v2.56.tar.gz &&     tar -zxvf v2.56.tar.gz -C / &&     chown root:root /v2.56  &&     rm v2.56.tar.gz:
#7 0.504 --2023-06-29 16:17:35--  http://trex-tgn.cisco.com/trex/release/v2.56.tar.gz
#7 0.504 Resolving trex-tgn.cisco.com (trex-tgn.cisco.com)... ::ffff:173.36.109.208, 173.36.109.208
#7 0.745 Connecting to trex-tgn.cisco.com (trex-tgn.cisco.com)|::ffff:173.36.109.208|:80... failed: Connection refused.
#7 21.80 Connecting to trex-tgn.cisco.com (trex-tgn.cisco.com)|173.36.109.208|:80... failed: Connection refused.
------
executor failed running [/bin/sh -c wget http://trex-tgn.cisco.com/trex/release/v2.56.tar.gz &&     tar -zxvf v2.56.tar.gz -C / &&     chown root:root /v2.56  &&     rm v2.56.tar.gz]: exit code: 4
carlos@RMAMWM32011:~/TRexAppHosting$

If I change dockerfile to use https works well :

<...>
RUN wget https://trex-tgn.cisco.com/trex/release/v2.56.tar.gz --no-check-certificate && \
<..>

it works well.