Cannot download the jenkins war file and plugins

[s-bak]

Problem with this page

https://get.jenkins.io/war-stable/2.401.2/jenkins.war

Expected behavior

The file should be downloaded

Actual behavior

It says 502 error instead.
Example)
https://get.jenkins.io/war-stable/2.401.2/jenkins.war
https://updates.jenkins.io/download/plugins/role-strategy/665.v4d4f871dc768/role-strategy.hpi

Office firewall manager mentioned that outbound firewall towards Internet does not block the site.
Please check for source IPs that used from our office.
203.241.151.50
203.244.221.1
203.244.221.2
202.20.193.254

Possible solution

No response

[dduportal]

Hi @sangwook-bak thanks for reporting.

We do not have see errors on these services and our monitoring + usages shows no errors as well in the past 24 hours: at first sight it is a problem related to your network.

In order for us to investigate, could you provide us the following elements:

• The page (screenshot is OK) at https://get.jenkins.io/war-stable/2.401.2/jenkins.war?mirrorlist on your webbrowser, which shows which mirror will be selected for download in your case (based on your Geographic IP)
• The result of the following command line (to check which redirect and which error you would have):

curl --verbose --location https://get.jenkins.io/war-stable/2.401.2/jenkins.war

Thanks

[s-bak]

Screenshot - it says 502 error

[s-bak]

curl --verbose --location https://get.jenkins.io/war-stable/2.401.2/jenkins.war

• Trying 20.7.178.24:443...
• connect to 20.7.178.24 port 443 failed: Timed out
• Failed to connect to get.jenkins.io port 443 after 21089 ms: Couldn't connect to server
• Closing connection 0
  curl: (28) Failed to connect to get.jenkins.io port 443 after 21089 ms: Couldn't connect to server

[dduportal]

Hi @sangwook-bak , there is definitively a problem in your corporate network:

• The HTTP/502 error shown in your webbrowser is not issued by the Jenkins infrastructure. It looks like there is a proxy between your browser and the Internet and this proxy is unable to access our website get.jenkins.io

• It is not a DNS problem: the curl command resolves to the correct IPv4 (20.7.178.24) associated to get.jenkins.io:

  $ dig +short get.jenkins.io
   public.publick8s.jenkins.io.
  20.7.178.24

There is nothing we can do to help you here as it's clearly a proxy/firewall issue. You have to contact your network administrators and check with them so they allow access to the IP 20.7.178.24 at least (and ideally to all mirrors that could be used).

This problem might have been an indirect consequence of the outage we had last Friday resulting in changing the public IP of get.jenkins.io: if your admin have set up 20.119.232.75 (the former IP since te 12th of June - https://www.jenkins.io/blog/2023/06/22/mirrors-jenkins-new-IP/), they have to update their firewall rules again.

[s-bak]

Hi. Seems the firewall manager added rule for the given IPs. Thanks for assistance.